General General FYT based Spreadtrum uis7862 (unisoc ums512) - Q&A, Mods, tips, firmware

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DexterMorganNL

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Dec 1, 2010
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surfer63 said:
He's not interested and he himself has also switched to DAB. I fully understand that. I did the same.
Click to expand...
Click to collapse
Did you contact user "F🐼23" his Mod, which I'm using now is actually based on tyukhta VAG FM Radio Mod. But I can understand people make the switch to DAB+

I only have my doubts about the signal quality of those USB window antenna. It seems to work good in the Netherlands, but I don't know if that would be the case in Germany.

But I listen to less to the Radio, to justify the installation of DAB+ antenna. As I have a Spotify premium membership, which works perfect on this unit.
 
Clandaries

Clandaries

Senior Member
May 9, 2013
1,218
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Stapel
Xiaomi Mi 11 Ultra
I have tried in 3 different cars and i could not get those window antennas to work.

I have seen a video where he showed that the ground soldering is bad in most cases.

So i throw them away.

The new car models also have FM/DAB antennas and they also fit the older models so i bought new antennas for our cars and this is working good. Not with all android radio models because the most of them are magnetic field generators and they disturb the reception.

With my Dasaita i get danish stations and denmark is 63km stright line away. I get about 120 Stations.

With those 9 inch Hizpo S8, Klyde and Witson devices i just get the about 40 Stations...

So you can have luck but it also can be better to listen to online radio or FM radio.
 
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pir8man

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Nov 25, 2007
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Samsung Galaxy S21
Samsung Galaxy S22
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DexterMorganNL

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Dec 1, 2010
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I finally got the Music widget working with Spotify: actually quite easy, but it just requires a special app from Google Play Store and an app called MusicProxy from 4PDA.

The demo you can use two weeks for free: it's fully functional, and works surprisingly well. Just no album covers or titles are show in music widget, but you can atleast use it to control the music.

play.google.com

WidgetUpdater for Teyes (Demo) - Apps on Google Play

Display title, artist and cover of the track in Teyes widgets
play.google.com play.google.com
 
dishe2

dishe2

Senior Member
Dec 2, 2020
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BTW, I don't know if this was already discussed here, but I was surprised to find out that a factory reset did not clear all my data off the unit.
I see from the first post that the config script has different possible commands to wipe partitions, and that there's a partition of memory considered like an SD card. I guess that's the storage for things like media and downloads. I found screenshots still saved there from when the device was new and I was setting it up, and they survived multiple "factory resets", as well as folders for apps I haven't used since the first time I tried them and then removed them... also persisted past multiple "factory resets".

Even more interesting, however, is that at least on my Atoto unit, some settings for the system are stored there as well and not reset! Paired bluetooth phones for example, exist in their own UI and survive factory resets. So does the default launcher and certain settings like camera resolution and layout.
I tried a twipe all command from the OP, and finally have a unit reset to factory defaults. It reset my camera resolution, and asked me which of the 2 included default launchers to use by default (I haven't seen that since it was new!).

This means:
a) If something is weird and you want to try a fresh factory reset to see if it fixes things, the factory reset button DOES NOT ACTUALLY RETURN TO DEFAULTS. I think one of my settings persisted and caused problems and I could not figure out why until now.
b) If you ever return / sell a unit, you might have personal data still on it even if you factory reset it.

I apologize if this is common knowledge here, but this sort of blew my mind after nearly 2 months of trying to figure this out.
 
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Radzią

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Nov 25, 2014
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Wroclaw
I have mekede m600s 9inch is it possible to lower the screen brightness value even more? I'm not talking about applications that apply a filter to artificially lower the brightness. Because the default minimum screen brightness is still too bright at night
 
A

[email protected]

Senior Member
Sep 28, 2013
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SÃO PAULO
Radzią said:
I have mekede m600s 9inch is it possible to lower the screen brightness value even more? I'm not talking about applications that apply a filter to artificially lower the brightness. Because the default minimum screen brightness is still too bright at night
Click to expand...
Click to collapse
Backlight current adjustment: 5768

But be careful in the adjustment, download it slowly or the screen will be very dark and you will not have any more visualization of the settings.
 
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[email protected]

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homarci

New member
Mar 21, 2023
3
1
Hi All,

i have the below 7862 android head unit in my Ford Mondeo MK4 and would like to check if there is any update available that would worth to do.

I am currently using it with Agama launcher and Navradio+ and already updated all the softwares from Play Store and the 3rd party "Store" that was on the HU by default (e.g. Carlink 2.0 update)

An issue I currently face is that the panel button light is set to turn on at 7PM by default - I cannot find any setting in the menu for changing this (only the color). Do you know if there is a config file i should change or if there is any 3rd party software for modifying this?


Brand: Skyshadow

CPU: UIS7862

Based on CPU-Z:
Model: ums512_1h10_Natv
8gb ram, 128gb rom
1024x600 screen resolution, 217dpi

MCU version: 2022.07.06 16:04:28 NOR_53_L6315_N32P48F64_E60_V_1.0

Base: FM_BASE_19C_W20.52.2_P13|sharkl5pro-modem|06-14-2022 10:59:47
MARLIN3_20A_W21.25.1|sc2355_marlin3_lite|06-21-2021 04:16:29

Build: QP1A.190711.020 release-keys
Kernel version: 4.14.133 (35511)

Thank you
 
dishe2

dishe2

Senior Member
Dec 2, 2020
186
38
DexterMorganNL said:
I finally got the Music widget working with Spotify: actually quite easy, but it just requires a special app from Google Play Store and an app called MusicProxy from 4PDA.

The demo you can use two weeks for free: it's fully functional, and works surprisingly well. Just no album covers or titles are show in music widget, but you can atleast use it to control the music.

play.google.com

WidgetUpdater for Teyes (Demo) - Apps on Google Play

Display title, artist and cover of the track in Teyes widgets
play.google.com play.google.com
Click to expand...
Click to collapse
Hold up, does Teyes have a universal music widget? One that allows track information and player controls for multiple players? On my Atoto, there's a music widget but it just controls their onboard music player (which isn't worth much and I never use it).
I love the way Agama and Vivid launchers have player controls and info that seem to auto update for whatever is currently playing. I prefer a standard Android looking launcher, but I always wondered why there isn't a standard widget that can replicate that function. Are you saying Teyes does this? Can you elaborate?
 
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DexterMorganNL

Senior Member
Dec 1, 2010
1,068
176
dishe2 said:
Hold up, does Teyes have a universal music widget? One that allows track information and player controls for multiple players? On my Atoto, there's a music widget but it just controls their onboard music player (which isn't worth much and I never use it).
I love the way Agama and Vivid launchers have player controls and info that seem to auto update for whatever is currently playing. I prefer a standard Android looking launcher, but I always wondered why there isn't a standard widget that can replicate that function. Are you saying Teyes does this? Can you elaborate?
Click to expand...
Click to collapse
No I'm not saying that: our Russian friends, created several apps that allows you to use that widget for a music app by choice. And another one to control the which app displays, in the front app.

And it's just my personal opinion: but Agama looks old fashioned and Vivid is extremely buggy, and to distracting. So I still prefer FYT Launchers.
 
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Lakis_dj

Lakis_dj

Member
Jan 26, 2021
23
3
Good Evening. How can I change his number Launchers ? because I want to have three but they have the same number.
 
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dishe2

dishe2

Senior Member
Dec 2, 2020
186
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DexterMorganNL said:
No I'm not saying that: our Russian friends, created several apps that allows you to use that widget for a music app by choice. And another one to control the which app displays, in the front app.

And it's just my personal opinion: but Agama looks old fashioned and Vivid is extremely buggy, and to distracting. So I still prefer FYT Launchers.
Click to expand...
Click to collapse
I 100% agree, I don't like the aesthetics of the car launchers I've seen. They were cool for 5 minutes but then I missed having traditional icons that I recognized by color and shape out of the corner of my eye, and I also like using and placing other widgets around the screen.
And yes, Vivid was the best looking of the ones I tried, but I went back to stock because it was so buggy and inconsistent.

I'd love to just use the stock or Nova launcher, I like the traditional way Android launchers look and work. I even found a Compass widget I can use because one of my kids like the way Agama offered a direction compass that didn't need a magnetometer (worked using GPS direction) and found that very cool. The only thing I really want/need and can only find in those launchers, is a universal music widget. Where can I find out more about these "Russian friends" lol
 
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DexterMorganNL

Senior Member
Dec 1, 2010
1,068
176
dishe2 said:
I 100% agree, I don't like the aesthetics of the car launchers I've seen. They were cool for 5 minutes but then I missed having traditional icons that I recognized by color and shape out of the corner of my eye, and I also like using and placing other widgets around the screen.
And yes, Vivid was the best looking of the ones I tried, but I went back to stock because it was so buggy and inconsistent.

I'd love to just use the stock or Nova launcher, I like the traditional way Android launchers look and work. I even found a Compass widget I can use because one of my kids like the way Agama offered a direction compass that didn't need a magnetometer (worked using GPS direction) and found that very cool. The only thing I really want/need and can only find in those launchers, is a universal music widget. Where can I find out more about these "Russian friends" lol
Click to expand...
Click to collapse
You need to install this app and download MusicProxy from 4PDA: you can use it for two weeks for free, but in fact it's the full version.

play.google.com

WidgetUpdater for Teyes (Demo) - Apps on Google Play

Display title, artist and cover of the track in Teyes widgets
play.google.com play.google.com

Btw our unit doesn't contain a compass: it uses the GPS only, and once you come to a stop. The navigation instantly forgets, which direction you where driving.

Actually this app, just makes it easier to use MusicProxy: but MusicProxy is 100% free, but setting it up with Widget Updater is a bit difficult.

Now I'm trying out, that by having Widget Updater/Music Proxy active. If I than don't need to have Spotify to autostart, because I can control Spotify in Google Maps as well. Just that when Spotify isn't started, my steering wheel buttons don't work.
 
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dishe2

dishe2

Senior Member
Dec 2, 2020
186
38
DexterMorganNL said:
You need to install this app and download MusicProxy from 4PDA: you can use it for two weeks for free, but in fact it's the full version.

play.google.com

WidgetUpdater for Teyes (Demo) - Apps on Google Play

Display title, artist and cover of the track in Teyes widgets
play.google.com play.google.com

Btw our unit doesn't contain a compass: it uses the GPS only, and once you come to a stop. The navigation instantly forgets, which direction you where driving.

Actually this app, just makes it easier to use MusicProxy: but MusicProxy is 100% free, but setting it up with Widget Updater is a bit difficult.
Click to expand...
Click to collapse
I'm aware it doesn't have a compass, that's why traditional compass apps don't work with it. My 6 year old is learning about maps and loves that my car has a direction on the mirror (just a simple 2 digit N/E/S/W indicator) and I wanted him to see the compass moving in the car while we drive. We tried so many apps and none of them worked. Agama had it as an option in the center circle which was SUPER COOL, it hadn't occured me to that anyone would make a compass based on GPS direction only. I found a homescreen widget for compass that has an option for Compass/Magnetometer or GPS to determine direction. So cool to have that.

So, I don't have a Teyes unit, I have an Atoto. There is a music widget, but I think it just uses the built in player.
 
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DexterMorganNL

Senior Member
Dec 1, 2010
1,068
176
dishe2 said:
I'm aware it doesn't have a compass, that's why traditional compass apps don't work with it. My 6 year old is learning about maps and loves that my car has a direction on the mirror (just a simple 2 digit N/E/S/W indicator) and I wanted him to see the compass moving in the car while we drive. We tried so many apps and none of them worked. Agama had it as an option in the center circle which was SUPER COOL, it hadn't occured me to that anyone would make a compass based on GPS direction only. I found a homescreen widget for compass that has an option for Compass/Magnetometer or GPS to determine direction. So cool to have that.

So, I don't have a Teyes unit, I have an Atoto. There is a music widget, but I think it just uses the built in player.
Click to expand...
Click to collapse
These apps work on non-Teyes as well: I have a Mekede.
 
dishe2

dishe2

Senior Member
Dec 2, 2020
186
38
DexterMorganNL said:
These apps work on non-Teyes as well: I have a Mekede.
Click to expand...
Click to collapse
Initeresting- so just so that I understand what this is, it just changes the main player widget that comes with the unit to a different app of your choice? Does it support Bluetooth streaming as an app control? And does it not switch automatically to whatever it playing (you have to manually select a different source of audio each time)?

I really liked the way the Agama and other launchers just sort of had this magic "whatever is playing now" screen and buttons. I feel like this Music Proxy thing perhaps isn't any less complicated than widgets like this one- or perhaps more complicated.
 
dishe2

dishe2

Senior Member
Dec 2, 2020
186
38
DexterMorganNL said:
These apps work on non-Teyes as well: I have a Mekede.
Click to expand...
Click to collapse
Ok, I sorta got it working and OMG it does exactly what I wanted! No matter what source plays, it automatically switches to it, whether Amazon Music, Spotify, local playback, or bluetooth!
But it turns out the Atoto stock widget is kind of garbage.
There is no album art supported, it's oddly huge and the text is left aligned almost like touching the border. On small track names it looks really odd.
I wish I had a better widget- are the music player widgets from other FYT Radios compatible with each other? This is so close.
IMG20230321181528.jpg
 
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DexterMorganNL

Senior Member
Dec 1, 2010
1,068
176
dishe2 said:
Ok, I sorta got it working and OMG it does exactly what I wanted! No matter what source plays, it automatically switches to it, whether Amazon Music, Spotify, local playback, or bluetooth!
But it turns out the Atoto stock widget is kind of garbage.
There is no album art supported, it's oddly huge and the text is left aligned almost like touching the border. On small track names it looks really odd.
I wish I had a better widget- are the music player widgets from other FYT Radios compatible with each other? This is so close.
View attachment 5869437
Click to expand...
Click to collapse
I think no off them have album art supported? They are very simple, but I wanted it to be useful: when not using any app, but only listen to music and having the speedometer on the home screen.

2023-03-16-17-45-10-551~2.jpg


Because I don't have any physical buttons, that's why I prefer a launcher with touch buttons for settings, radio, Bluetooth and navigation. That's more practical. And there is also a control widget, for the FM Radio.
 
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  • 4
    surfer63
    surfer63
    I have a Mekede M500s with a ro.build.fytmanufacturer=116 (fyt.prop) and a ro.sf.swrotation=90 (config.txt).
    I tested it with a Joying AllAppUpdate.bin with a ro.build.fytmanufacturer=43 (fyt.prop) and a ro.sf.swrotation=270 (fyt.prop and config.txt).
    I simply used the "pre-flash" script to copy my Mekede 500s config to USB-stick and then flashed the Joying bin using the "flash" script. It all worked fine be it that some apps had slightly different icons and layout, but that is obvious.
    Then I took a Mekede AllAppUpdate.bin and flashed it back.
    All good.

    You can find both scripts in one zip in post #3 under bullet #4.
    Let me know your experience and inform me about typos or unclarities in the "00_Readme" or forumpost "Readme".
    Anyone wanting to use this in his/her own scripts: be my guest! If you improve it, please let me know.
    View
  • 8
    surfer63
    surfer63

    How do I change the ringtone on these 7862(s) and uis8581a (sc9863) units?​


    This is an absolute shameless copy of a 4pda post by tyuktha and Monkey_D_Luffy. All credits go to them.
    As we are not allowed to link to 4pda I will simply recreate it here.
    1. Create a "btring" folder on your internal memory (see Spoiler "btring folder on internal sdcard"). You can also use the linked btring.zip archive. It contains the folder with contents like configuration, the standard ringtone, the standard ringtone but lower volume and a "the Doors" ringtone (my phone ringtone).
    2. Move your favorite ringtone into the btring folder
    3. Open the bluetooth app.
    4. Click the gear icon to access the settings screen (see Spoiler "Steps in BT app to activate other ringtone": icon numbered 1).
    5. Scroll down to the Ringtone option (see Spoiler "Steps in BT app to activate other ringtone": icon numbered 2).
    6. Click on the right side in the line on the "Set" option (see Spoiler "Steps in BT app to activate other ringtone": icon numbered 3).
    7. Select a ringtone from the folder.
    btring.zip archive.

    I also added this as Q25 under Q&A - Questions & Answers in post #1
    btringfolder.png
    selectRingtone.png
    View
    5
    surfer63
    surfer63
    I also added a Q26 under Q&A - Questions & Answers in post #1 to describe how to make a screenshot on the unit.

    I see a lot of shiny, reflecting, not so good images made with smartphones. I sometimes do that as well if I do not have a proper way to transfer images from my unit. In that case a smartphone is fine, but otherwise a proper screenshot is always better.
    View
    4
    surfer63
    surfer63
    I just realized that it is really simple to use any FYT AllAppUpdate.bin and still do not get errors of the fytmanufacturer and the like.

    I could create a lsec cript that might be called "preflash", which copies from the unit the existing fyt.prop and config.txt out of the /oem/app folder and save it to a folder on the USB-stick called "myconfiguration".
    Then you copy any AllAppUpdate.bin to your USB-stick.

    Then you unzip a script called "flash-script" to the USB-stick.
    The lsec6315update would simply flash the AllAppUpdate.bin and this lsec "flash-script" would simply copy your saved/backuped fyt.prop and config.txt back onto the unit.
    And upon reboot you have the new Android apps with your own config.txt and fyt.prop.
    View
    4
    surfer63
    surfer63
    Specy01 said:
    If I understand correctly, it would be a fantastic thing and this would allow those who, like me, are newbies to be able to flash the "AllAppUpdate.bin" without having to make changes to the said file.
    Click to expand...
    Click to collapse
    Already working on it but it is the (extended) Pentecost weekend, so I have other "obligations".
    Scripts and "Readme_First" have been written as that was easy, but I want to first test it myself.
    View
    4
    surfer63
    surfer63
    I have a Mekede M500s with a ro.build.fytmanufacturer=116 (fyt.prop) and a ro.sf.swrotation=90 (config.txt).
    I tested it with a Joying AllAppUpdate.bin with a ro.build.fytmanufacturer=43 (fyt.prop) and a ro.sf.swrotation=270 (fyt.prop and config.txt).
    I simply used the "pre-flash" script to copy my Mekede 500s config to USB-stick and then flashed the Joying bin using the "flash" script. It all worked fine be it that some apps had slightly different icons and layout, but that is obvious.
    Then I took a Mekede AllAppUpdate.bin and flashed it back.
    All good.

    You can find both scripts in one zip in post #3 under bullet #4.
    Let me know your experience and inform me about typos or unclarities in the "00_Readme" or forumpost "Readme".
    Anyone wanting to use this in his/her own scripts: be my guest! If you improve it, please let me know.
    View
  • 42
    surfer63
    surfer63
    Last revised: 20 May 2023.

    This thread tries to be a "one fits all" thread about FYT based Spreadtrum uis7862 (Unisoc ums512) head units and its software, modded or not. The first few posts will be "collection" posts for all kind of info but will also link to other useful information that might be added later or in other threads.
    Part of the tips, mods, etcetera are also valid for FYT based sc9853i and sc9863a (uis8581) head units, and even for the older PX5 and Sofia-3GR.

    DISCLAIMER: Every action you do on your unit is on your own responsibility. I will help where I can (and probably a lot of other users as well), but I am never responsible.


    This thread is meant for:
    • Discussing firmwares (see post #2), modded firmwares, mods and rooting (not advised).
    • Tips, tricks, mods to improve the general usability of your unit.
    • Try to solve design errors/flaws where we expect that these Chinese resellers/suppliers will not do it.
    This thread is NOT meant for:
    • buyers advice (is this one better than that one?)
    • 4G providers, DAB+ modules or DAB+ software (see here for DAB-Z by @realzoulou), Navradio+ (see NavRadio+ ported to UIS7862-FYT devices by @KoTiX2 , sub-woofers, OEM cameras, OBD devices, TPMS or other peripheral devices.
    • ABSOLUTELY NOT for posts about "what is/are your favorite app(s)?"
    • Questions about repairs, warranty and the like. That is between you and the reseller. Questions about interchangeabilty of hardware are OK.
    Always first check the offical websites (if any) of the resellers in case of technical questions. Also: First contact your reseller in case of hardware issues or (not working) accessories.

    General unit information

    CPU: uis7862 (ums512). Specs/Benchmarks/Info. (Also allows you to compare with other CPUs).
    Android version: Android 10 (API/SDK 29); Fake Android 11 (still API/SDK 29). (Android level is a simple property. Always check at the API/SDK version)
    Producer: FYT
    WiFi: 2.4GHz and 5GHz. This 5GHz is really a benefit. Not only because of its faster 5GHz speed, but also because the 2.4GHz and BT negatively influcence each other dropping perfomance sometimes to 10% of "real" 2.4GHz. (Valid for all models without 5GHz, FYT or not).
    Bluetooth: V5.1
    Resellers: Atoto, Ebilaen, Eki, Farcar, Funrover, Idoing, Isudar, Joying, Junsun, Mekede, NaviFly, Sinosmart, T'eyes, Winca, Zhan. There are more resellers, but not all of their models might be FYTs. Same for some resellers in this list.


    Q&A - Questions & Answers

    Q1: I already see uis7862 units having Android 11 and even Android 12, what about it?
    These Android 11 versions are fake! The Android version is still Android 10 (API/SDK 29), but the Android version as displayed is a simple property which you can set to Android 11 (or 12 or 31 or 227). The API/SDK versions determines the real Android version. Don't believe statements like "we updated ...". Always look at the API/SDK version. If it says API/SDK 29 it is is Android 10. Real Android 11 is API/SDK 30.

    Q2: What are the several passwords on these uis7862 FYT units?
    • Factory menu / Developer options: 3368
    • Backlight Current Adjustment: 5768
    • Door lock interference: 0000
    • To change home launcher: 8086
    • Developer password: 7788, or tap 7 times on "About".

    Q3: Are all these (uis7862) units compatible? Is all (uis7862) firmware compatible?
    The uis7862 units based on FYT are all hardware compatible. Differences in audio chip, radio chip with or without RDS, DSP chip (DSP 14-band (low end) or DSP 32-band or not at all) are supported by the software. There are minor differences in MCU and firmware, which need to be taken into account when flashing firmwares,and sometimes also for flashing mods. This is all based on the so called reseller id.

    Q4: How compatible are FYT units over the years (uis7862 (ums512) vs uis8581a (sc9863) vs sc9853i vs sc7731 (uis8141e) vs PX5 vs Sofia3GR)?
    When it comes to firmware you really have to look at the CPU and reseller id (see below). Part of the "user apks" are quite exchangeable. When it comes to settings, behaviour, tips & tricks, etcetera, these units are mostly compatible over the entire range through the years and almost all settings are the same when it comes to (uis7862(ums512), sc9863a(ums8581a), sc9853i, px5, sofia3gr). So please take a look at Q&A, tips, info Roll-up (Joying) FYT SC9853i before asking questions.

    Q5: What is an MCU? What does it do?
    MCU stands for MicroController Unit (in this case). The MCU is a "CPU" itself with embedded (flashable) firmware that functions as interface and "translation" layer between the Android software and the hardware layer (Radio chip, Amp chip, DSP chips, etcetera).
    The MCU has some I/O lines to the hardware of the unit. A number of digital IN lines (ACC, headlights, reverse, parking brake) and digital OUT (antenna power, amplifier power) and a few analog IN lines (steering wheel 1 and 2). This overview is not complete.
    So actually your unit comes with the Android firmware (Android itself and the additional FYT unit programs) and with the MCU firmware. That MCU firmware is not always packaged with new firmware updates. Note that all these Chinese units use this MCU firmware instead of using Google Androids Automotive System.

    Q6: Can I flash firmware from another FYT uis7862 supplier to my FYT uis7862 unit?
    NOT directly, but with some tweaks: Yes. Read post #2 carefully and especially section VIII.

    Q7: Can I flash the MCU firmware from another FYT uis7862 to my uis78962 unit?
    NO. I repeat: No. If you really, really, really, really know what your doing then to some extend: Yes. Otherwise: Don't even think about it.

    Q8: How do I unpack/repack this AllAppUpdate.bin?
    See post #2 section II. (AllAppUpdate.bin).

    Q9: What is an AHD camera?
    AHD stands for "Analog High Definition". It has nothing to do with your screen resolution itself, but it is for your camera (1280x720 and 1920x1080). It requires it's own micro-processor for decoding in the unit. AHD cameras are therefore only supported on units that specifically mention this. You can however connect a "low res" DVR camera (720x576 or 720x480) to an AHD unit.

    Q10: Can I mod my unit? Are there custom firmwares available?
    Yes, you can mod your unit to some extent. See the posts about the AllAppUpdate.bin and 7862lsec scripts. There are no custom firmwares available. There are modded firmwares available. These contain some tweaks, minor layout changes and sometimes solve bugs, but are actually still the exact same firmware.

    Q11: Can I root my unit?
    Yes, you can. There are at least 3 possible ways to do this, but I don't recommend rooting. Not because rooting is tricky, or making your unit unstable, but rooting brings nothing. It only makes your unit less safe as malware, etcetera have a much better chance to attack than on a non-rooted unit. You can mod some things easily yourself without (!) root. When rooting Google voice feedback is crippled as media channel 4 is somehow "blocked". Viper audio doesn't work properly and brings nothing extra on these DSP units. Anyway: Google for yourself if you still want to root your unit as it is possible if your really want it.

    Q12: How do I disable the internal microphone when using an external microphone?
    See this post. Note that there is a difference for units after approximately August 2022 (Pro models) and units before that time.

    Q13: I flashed a firmware from another unit and now I have a big yellow bar with red text "ui and mcu does not match". What can I do?
    To start with: I know it should be "ui and mcu do not match", but that "does" is CHenglish. The reason for this is that the ro.build.fytmanufacturer is different for the several resellers and you used an AllAppUpdate.bin from another reseller. You now have several options here:
    1. You still have the original firmware and can extract the ro.build.fytmanufacturer from it (or you know it from the top of your head).
    2. You have no clue about this ro.build.fytmanufacturer and you don't have the original firmware anymore.
    In case of (1), you could:
    • use the script Change Fytmanufacturer (bullet #3) that directly updates this ro.build.fytmanufacturer inside the fyt.prop on your unit.
    • open the AllAppUpdate.bin (next post, topic II) and change the ro.build.fytmanufacturer and repack it again and flash that AllAppUpdate.bin
    • Or simply flash the oroginal firmware, get the ro.build.fytmanufacturer and start all over again.
    In case of (2) you have to flash the entire original firmware again ór use the script (link added later) to update the fyt.prop directly and try a number of ids until you have the correct one (There are not so many).

    Q14: I want to replace my boot animation and/or boot logo. How do I do that?
    Copy the lsec6315update binary and your bootanimation.zip and/or your LOGO.bmp onto a clean USB-stick and connect it to your unit. It will only flash your bootanimation and your boot logo.

    Q15: When my unit (cold) boots, the radio is always started. Can I prevent this from happening?
    You can't stop this. Not on a Joying and not on any other unit. And note that the radio app is actually only an interface that forwards commands to and receives data from the radio chip via the MCU. It is not an active app like your mediaplayer that does everything in Android.
    When the unit boots, the hardware is up and running long before Android is. That means that the radio chip and amplifier are already working before Android has even booted. That is why you hear the radio. And that is why every manufacturer starts the radio app on boot: to enable you to mute the radio channel from the app.
    The radio is never switched off as it cannot be switched off. It is only muted.

    Q16: Do I have a FYT unit or not?
    Use my HWGet_Info.apk. It will immediately show a lot of FYT properties (if it is a FYT) and give a zip with a lot more info as well.

    Q17: If I want to create my own scripts then which binary do I need and which script should I create?
    BinaryUnitScript
    lsec6315updateuis7862 (ums512)7862lsec.sh
    lsec6316updatesc9863a (uis8581a)8581lsec.sh
    lsec6521updatesc9853ilsec.sh
    lsec6523updatesc7731 (uis8141e)lsec.sh

    You can make "Universal scripts" by simply using all binaries and create/duplicate all scripts and copy them onto one USB-stick (or inside a dowloadable zip). The unit will automatically select the correct binary and accompanying script.
    The binaries and scripts are "incompatible" on other units.

    Q18: My GPS reception is bad. What can I do?
    • If your car already had GPS, buy a "Fakra C Adapter Plug to SMA Male GPS" adapter (example) and use your cars GPS antenna (mostly on the top of the roof). 99% sure it is better than those cheapest possible GPS antennas you get with these units.
    • Buy a better GPS antenna. On Aliexpress you can buy a 32 dB or 38 dB antenna from 6-26 euros that are much better. Secondly: the standard GPS antennas come with long cables that loose signal.
    • The standard antenna: First check whether your SMA connector is firmly connected. Mostly it requires a little more force to fix than your fingers will yield.
    • The standard antenna: Check for a broken cable. Is it nicely curved or does it somewhere has a sharp bend.
    • Do not put it under large metal plates or metal reinforcement beams under your dashboard. Mostly it functions just fine below your dashboard, but not if you put it directly under a big metal beam/bar.
    • Place the antenna itself horizontally to give it the best "view".
    Q19: All my apps are killed when my unit goes into deep sleep. Can I prevent this? Or: How can I always start the XYZ apk when I start my car?
    • First of all read bullet #8 from my other "info" thread, but do NOT use solution 2, made for a sc9853i, for your uis7862.
    • In the Settings apk, go to "User" -> "Application Settings". In that menu you can autostart applications on cold boot or coming from (deep) sleep mode.
    • Use FYTstarter from @bambapin.

    Q20: I use Total Commander, FileXplorer or any other advanced file manager but can't write to my external USB-stick or SD-card. Why?
    You do need the documentsui.apk for it (deprecated as of Android 12). For whatever reason FYT doesn't compile it into their firmware. This DocumentsUI for Android 10 will help you. Install it, open it once and afterwards your filemanager will use it once to request access to (the root of) the USB-stick. When using another USB-stick (having another internal ID), you will have to give access to that USB stick as well. Same when you have formatted your USB-stick.

    Q21: I have a unit without active cooling (a fan) but still would like to cool my unit as it gets really hot and starts to throttle down giving terrible performance (and reduced life span). How can I add a cooling fan?
    You can buy a 12V PC-fan. Select a slowly spinning, ball bearing fan to make it as silent as possible. Connect it to the 12V AMP wires. From the Settings -> Sound, you can enable/disable the AMP. In this case that will start or stop the fan.

    Q22: I use a non-FYT Launcher (Nova, WebGuru, Agama, etcetera), but recently it always switches back to a FYT launcher or another after sleep / reboot / other actions.
    Go to: Settings - Device - Applications: Disable the Digital Wellbeing App

    Q23: I need a SIM/Carrier to work with my FYT unit and my provider
    • make a text file named "IMEI0" (no extension)
    • edit it to put in two IMEI values that are valid and compatible with your provider. (one for each SIM slot)
    • copy to USB stick and plug it into your unit
    • Your unit will (should) show a notification "imei changed".
    After reboot your unit should have the new IMEI in the settings. (thanks to @j-5)

    Q24: How do I enable splitscreen on these units?
    See post #1394 for an explanation with screenshots.

    Q25: How do I change the ringtone on these 7862(s) and uis8581a (sc9863) units?
    See post #1951 on how to do this. (This is an absolute shameless copy of a 4pda post by tyuktha and Monkey_D_Luffy. All credits go to them.)

    Q26: How do I make a screenshot (instead of a reflecting, not so good and not always sharp, smartphone photo).
    • Drag down the status bar at the top of your screen.
    • Drag it a second time further down.
    • In the top right you will find a scissors icon.
    • This scissors icon can be used to make a screenshot.
    • Your screenshot will be saved in "Pictures/screenshots" on your internal memory.

    ==================================================
    (End of Q&A - Questions & Answers)


    FYT Settings explained

    Thanks to @hanichl for first write-up.
    Thanks to @mastrv for corrections and further additions.
    Thanks to @leo06 for corrections on GPS mix Setting/explanation.
    Thanks to @daviddosa for further additions.

    Note that these are FYT Settings, which means it doesn't matter whether you have a Mekede, Joying, T'eyes or any other FYT unit. Note also that many settings are the same whether you are on a FYT uis7862, uis8514a, sc9853i, PX5 or Sofia 3GR, althought the number of settings have increased in newer models.
    T'eyes also has a site with instruction videos, which are still 90% up-to-date. See here.
    Joying now also wrote an online manual on the JOYING FACTORY SETTING USER MANUAL and the JOYING STEREO SETTING USER MANUAL.

    SETTINGS​

    WLAN​

    • Wlan (same as stock Android)
    • Data Usage (same as stock Android)
    • SIM Info (same as stock Android)
    • More (same as stock Android under Advanced Networking)
      • Mobile Network
      • Hotspot & Tethering
      • Airplane Mode
      • VPN

    DEVICE​

    - Display
    • Brightness Level ( brightness for day and night mode )
    • Wallpaper ( change wallpaper )
    • Auto Blackscreen ( black the screen after xx seconds/minutes )
    • Displayed NET Switch ( shows the connection speed in upper taskbar )

    - Sound​

    • Keypad Tone ( On/Off: emits tone when pressing a key )
    • LOUDNESS ( Not entirely clear, but most proabably the same Loudness setting as on a HiFi installation before DSP was introduced, or for units without DSP )
    • AMP ON/OFF ( switching amplifier mode ). Note: In case your unit has a cooling fan installed, the setting AMP ON/OFF is also there to switch the fan On or Off on older units (brand units: before approximately July 2022; for brandless units you never know)
    • Power Conditioning ( absolute output volume from 0 to 60, all other audio settings are relative; if you think your audio is already too loud at position 5 (or so), you can decrease the absolute volume output here which means that Volume 5 is now lower )
    • Subwoofer ( set subwoofer volumes )
    • Equalizer ( set sound frequencies with equalizer )
    • Speed Compensated Volume ( set sound volume depending on the actual speed )

    - GPS​

    ( set / shows GPS modes GPS / GLONASS; mode 1 -> GPS only; mode 2: GPS + GLONASS )​

    - Apps​

    ( show / remove installed apps; same as stock Android )​

    - USB Video Output Setting​

    ( Some resellers sell external USB-connected DVD-players. This settings allows you to correct over/under scanning )​

    - USB Device Start​

    ( None / Carlink - application to start when USB device is connected )​

    GENERAL​

    • Press any key to start ( When you long-press the "Off" button on the top-left button array of your unit, your screen will switch off (but your unit does not go into deep-sleep). When you set this setting to ON, your unit will switch on again when pressing any button of your unit)
    • Brake wire for video in motion (Strange Chinese translation: (Dis)Allow display of video during driving . It means when handbrake is not used.)
    • Auto-start Navigation ( auto start navigation > needs Navi app to be set accordingly )
    • OSD Time ( on / off in notification bar)
    • Mirror view on reverse image ( if backup reverse cam is installed, and the video is 180 degree turned, this will switch to normal mode )
    • Mute audio when reversing ( decrease sound level if in reverse gear, does not completely mute )
    • Sound reduction when reversing ( reduces the sound when car is in reverse gear (driving backwards). Only works when previous Setting switched to ON )
    • Backlight control ( switches the leds behind the (soft-)buttons On/Off : or by switching on/off headlights, or based on time )
    • Default volume switch ( When your unit starts, do you always want to have the same default volume to start with )
    • Default boot volume ( sound volume which is preset on boot process; only works if previous setting switched to ON )
    • GPS Mix ( ON = Will reduce/mute media/radio when "speaking" navigation instruction; OFF = media will not be reduced/muted when navigation app issues instruction ). Some other translations than English mention this as "audio mix between navigation and media". Note also that most modern navigation apps have a setting themselves to mute or even shortly pause the media player when issueing a navigation instruction.
    • Sound mixing scale ( Set volume of background audio when "navigation speaks" (for example: Volume currently 10 so navigation uses 10, background music uses volume set here ). Only works if "GPS mix" setting (one above) is set to ON.
    • Lantern settings ( set the colour palette for the hardware buttons LED )
    • Steering wheel setting ( Configure the steering wheel buttons; only for non-Canbus systems. Canbus systems are hard-coded )
    • Navi app ( app to start when NAVI Button is pressed AND to auto-start navigation ... see 3rd point ..
    • Map Data Copy ( Old setting for iGo to copy maps from internal memory to SD-card, so that it doesn't get deleted on a new firmware install )

    FACTORY​

    (requires password/pincode 3368)
    • Touch check
    • Original Car Agreement ( These settings are mostly controlled by the CANbus. The number of options can vary per CANbus type and can also work or not work per CANbus type. The number of options will be very limited without a CANbus. )
      • External Temperature ( shows external temperature in notification bar when CANbus is present)
      • Automatic start and stop ( ?? )
      • Radar Display ON/OFF ( When car is put in reverse gear, it will show the reverse camera or an image with edges of your parking sensors (if you have them))
      • Reverse Parking Line ( In case of a reverse camera show the parking lines )
      • Static Track ( Shows static reverse parking lines in case you don't want or have the "curving" parking lines )
      • Reversing track reversal ( If your reverse camera's left/right postion is reversed )
      • Max Reversing Angle (Change how far the parking lines curve. This to adjust it correctly to your camer/car)
      • Door ON/OFF ( shows if a door is open )
      • Drivers Door position ( left / right drivers position )
      • Rear Door Exchange ( Similar to Drivers door position, but for back doors )
      • A/C Information ON/OFF ( Shows changes if you change AirConditioning temperature/ blower speed/ etcetera )
      • Car Audio Type ( AUX / IPOD-TV )
      • Reversal Previous And Next ( This reverses your CANbus steering wheel next/previous behavior (Spotyfy is known for this) )
      • Reversal Volume ( Reverses the Volume +/Volume - in case your CANbus steering wheel volume keys/arrows work the other way round )
      • Protocol Print ( When on, this displays the CANBUS messages overlayed on the screen )
      • Temperature unit switch ( Celsius/ Fahrenheit )
      • CAN box upgrade (updates software in CANbus decoder; Be careful: this can soft-brick your decoder)
    • Car Model ( define the canbox manufacturer, params )
    • Back MIC switch -> When set to "On" the internal microphone is switched on, but only new M6 pro hardware. When set to "Off" the internal microphone is switched off. Use this "Off" setting when you have an external microphone connected. Do not use both microphones at the same time as it will only give you worse microphone performance. If you have an old(er) firmware and not the new M6 pro, you need to use this trick as described by Vitaly (@gordgelin ).
    • Antenna normally on ( In case you have an electrically retracting / extending antenna. This will extend the Antenna when ACC switched on . OR some cars need constant 12V on the Antenna )
    • HD reversing video format (Try this in case you have an AHD camera on a non AHD unit, or the other way round).
    • Boot Screen logo
    • Set Screen
    • Touch Screen Calibration
    • Panel Key Learning
    • Front View
    • Cancel the reverse into the front view (If you have back and front camera, it will switch to front camera when "leaving" the reverse gear)
    • MCU Panel Key (Set buttons like Band/Radio, Phone, Music) on the side of the screen to On/Off.
    • Unknown sources ( allow apps to be installed from unknown sources )
    • Door lock interference
    • Reverse power supply (Be careful !: Switch functionality of Cont and ACC inside radio)
    • Volume balance settings
    • MCU upgrade (Only upgrade the MCU firmware; Be very carefull to ONLY use the firmware for your type of unit)
    • Backlight current adjustment (Set display brightness but be carefull. It can blacken your screen entirely. There is no safe low position. passwd: 5768)
    • Home Launcher Selection (Option to chose one of installed FTY launchers. passwd: 8086)
    • USB Error detection
    • USB protocol selection
    • A key to export ( exports Settings to /mnt/sdcard/SettingsConfig as json file, but how to import this )
    • Single 360
    • Activation
    • DVD Update
    • TV Type
    • Video Output Settings
    • OBD
    • Sleep mode Setting (Switch off head unit or switch to deep sleep, when ACC is turned off)
    • 360 switch
    • Backup Test
    • Plug In Serial Device Setting

    USER​

    • Location (same as stock Android)
    • Security (same as stock Android)
    • Language And Input (same as stock Android)
    • Google Settings (same as stock Android)
    • Backup And Reset (same as stock Android)
    • Account (same as stock Android)
    • Delay Power Off When ACC Off (After ACC of the delay time to put unit in sleep or off: OFF / 3 sec / 10 sec / 3 min)
    • Application Setting ( which applications you want to auto-start when you start your car and unit )

    SYSTEM​

    • Date And Time
    • Accessibility
    • Developer Options
    • About Device
    • Device Info
    ==================================================
    (End of FYT Settings explained)



    Mods, useful software, tweaks for your system, etcetera.
    Some will be added later

    • Backup the firmware of your unit (see post #4). Useful if you do not have a firmware yet for your unit.
    • Disable or (re-)enable the mediaplayer at startup/wakeup (bullet #2).
    • Change Fytmanufacturer script to correct the fytmanufacturer id after a flash with another resellers AllAppUpdate.bin bullet #3).
    • DocumentsUI for Android 10. Without it you can't write to an external USB drive with other file managers. That is because the documentsUI is missing. Install it, open it once and afterwards your file managers can use it to get access.
    • Android Shortcut Settings: This program by Mario Dantas gives you access to some hidden settings in the (FYT) head units.
    • Mario Dantas (@mariodantas ) created/build the website "uis7862 FYT Factory":
      • A great and very extensive collection of launchers for FYT models and also a collection of (un)rooted kernels for your unit. (Read post #2 section III "The 6315_1.zip" for more info on kernels and how universal they are.)
      • He now also created a new firmware (MD-edition) that after flashing gives you some very handy and essentials options for on-the-fly rooting and root access for selected apps, starting apps from boot, make firmware backups, save your /data/data partition, etc.
    • @seb21 made a modded combination of the com_syu_ms.apk and a Config.apk. This combi allows you to change the "hard-coded" steering wheel buttons in case you have/use a CANbus and add "no kill" functionality. See Modded syu.ms.apk.
    • getinfo script. This is in fact an extension of my HWGetInfo.apk, but as an lsec script. It gives more info than the HWGetInfo.apk as it runs as a flashable script thereby having full access to the system.
    • Disable airconditions app on Tesla style uis7862/8581 units.
    View
    27
    surfer63
    surfer63
    Last revised: 28 May 2023.

    More about Firmware(s)​

    This post is valid for FYT uis7862 (ums512) units running Android 10 or fake Android 11.

    Contents of a firmware zip:
    • 6315_1.zip: The zip file contains all "standard" Android software, drivers and apks. It also contains the the boot.img; the system/vendor/oem partitions and a few other things. This 6315_1.zip "should" be interchangeable between all 800x480, 1024x600 and 1280x720 models. I don't know for the special resolutions, Tesla like units or rotable units. Probably they are by now also compatible.
    • AllAppUpdate.bin: Special file that contains all FYT apps (This can be (un)packed with any (un)zipper, but I prefer 7-zip). This file also contains special files with reseller specific configs. This one is only interchangeable between the same reseller-id, unless you change that reseller-id.
    • config.txt: file comparible to the build.prop which can contain additional properties.
    • lsec6315update: The binary that really does the update
    • oem: (OPTIONAL, DEPRECATED) Folder containing some additional apps. These are not automatically installed, but can be found in folder OEM in your internal memory (internal SC card called USB). Do not confuse this with the oem partition where the AllAppUpdate.bin will be installed to. I use this folder upon flashing to add some of my preferred apps that I want to have available, but not directly installed. Note: Nowadays the preferred location for these kind of apps is in the vital-app folder inside the AllAppUpdate.bin.
    • updatecfg.txt: Contains instructions for the flashing process
    • Stm32ud.bin: (OPTIONAL) binary to flash the MCU
    • GD32_E230_64K_Flash.Hex: (OPTIONAL) the hex file that contains the MCU firmware itself.

    I. (Factory) Firmwares

    (Please share official (!) download links for other resellers so I can add them here).

    * Modded Firmwares:

    See for compatibilty between firmwares the below header "Compatibility between firmwares".
    ==================================================================================



    Some commands that can be put inside updatecfg.txt
    Code: 
    twipe_all     # Wipe entire system
twipe_data    # Will wipe data partition (but not /sdcard, internal memory). Wiping the /data partition will wipe all config, all 3rd party apps and updates of system apps. This is the same as a "reset to factory defaults"
twipe_cache   # Will wipe the cache of the apps thereby removing the temporary files that are stored for those programs.
twipe_sd      # Will wipe internal memory /sdcard (but not the data partition)
dellapp       # Remove all 3rd party apps
make_updates  # Make an upgrade U-disk boot file
test          # test unit and firmware before flash

    Some properties that can be put inside config.txt. Say you live in Brazil and you want your locale settings immediately on Brazil, you can add that. As a second example we take a "Tesla style" unit which is actually a rotated horizontal unit. You see that we specify 0 from the rotation. This is because android is normally for portrait like screens. Our landscape models have a value ro.sf.swrotation=90 decrees as they are actually 90 degrees rotated. A Tesla style unit therefore is again 0 degrees and sometimes 180 degrees.
    Code: 
    ro.product.locale = pt_BR
ro.sf.swrotation=0
    Or you want to improve the microphone function a little, you can add or modify the following lines:
    Code: 
    persist.sys.zlink.mic.vol=9.9
persist.audio.mic.senstivity=1
persist.btmic.gain=10
persist.btspk.gain=7
    If you decide to download a 4pda Russian modded firmware, make sure you remove the settings from this config.txt file that makes this a Russian firmware (unless you are Russian, but in that case you probably would not be here).

    28-05-2023: I added two scripts in post #3 under bullet #4 to let you flash any AllAppUpdate.bin to your unit.

    II. AllAppUpdate.bin

    The AllAppUpdate.bin is actually a password protected zip archive. You can use any zip, but preferably 7-zip for your platform (Linux, MacOS, windows) to create, modify or extract it.

    Specifications: zip format, non-compressed (store), password 048a02243bb74474b25233bda3cd02f8
    Unzip is simple: you only need to specifiy the password.
    When (re)creating a new AllAppUpdate.bin, make sure you follow the specifications.

    Inside this AllAppUpdate.bin you will find all FYT based apks and libraries and next to that also two other files: fyt.prop and skipkillapp.prop.
    • The fyt.prop is identical to the build.prop but gives the option to add extra properties or replace/modify properties in the build.prop. And the fyt.prop contains the ro.build.fytmanufacturer=<xy> and the ro.fyt.uiid=<z>. This is in 90% the only distinction between the several firmwares.
    • The skipkillapp.prop contains apps (package names) with values from -15 to 15.
      When going into "deep sleep" the packages not mentioned in this list will be killed. Applications in this list with positive values will absolutely be killed (unstable otherwise??). The ones with higher values first. The ones with values 1 and 0 as last, where the app with value 0 will be the last killed before going into deep sleep.
      The apps with negative values are considered system apps and will not be killed. In this case the most negative number (-15) has the highest priority. My assumption (not tested, not verified) is that negative numbers approaching 0 might be killed if the system needs the memory?
      So in other words: If you do not want that some of your apps are killed, you can add them to this "skipkillapp.prop" by their package name. Say you use @realzoulou's DAB-Z app, you would add a line for DAB-Z (com.zoulou.dab). Or for example if you are a Tasker user, which is normally killed as well:
      Code: 
      com.zoulou.dab = -10
net.dinglisch.android.taskerm = -10
      (I would suggest not using values like -15, -14, -13 to make sure you do not really interfere with the real system apps).
      And then you need to add this file (again) to your own AllAppUpdate.bin
    NOTE: In the previous version for the sc98531 you had the Allapp.pkg. You could put one or a few apks in there and it would simply only install/overwrite the apks inside that Allapp.pkg. The AllAppUpdate.bin will always completely erase the FYT apks on the oem partition. This means that you either need a full AllAppUpdate.bin with your (modded) FYT apk(s), or (advised) use the 7862lsec.sh script approach to only add/overwrite/remove one or a few FYT (modded) apk(s).

    NOTE 2: In the "main server" apk com.syu.ms, there is now inside assets/property an new file called unkill_app.txt. I "think" that file now contains the apps that should not be killed upon going into sleep mode. I still don't have my unit and I am actually not interested at all in "unkilling" apps, but it might be useful to test with this file.
    ==================================================================================


    III. The 6315_1.zip
    (Inside also "III-a. More details about the files inside the 6315_1.zip and how to decompress and unpack/"open" them" and "III-b. Recompress uncompressed images from the 6315_1.zip to squashfs format for small (!) and easy access. (Not for flashing.)")

    The 6315_1.zip contains the "standard" Android software for this unit. This is more or less what every "plain vanilla" Android 10 release will contain, without additional apks (Compare it with standard Android where Samsung adds a lot of Samsung apps). This is the "base" firmware as you download it from the Android website and compile it.
    Note: Mentioning that this is "standard" Android is actually wrong. FYT modified the USB and bluetooth stack. In effect: they crippled it to only allow the USB and BT devices that they consider "allowed".
    Note 2: They also added drivers to this "plain Vanilla" Android to support their hardware, mostly through the MCU.

    This 6315_1.zip is theoretically identical for all FYT uis7862 units and can therefore be used on all FYT uis7862 units. (DISCLAIMER: Experimenting with this falls under your own responsibility).
    You can unzip the 6315_1.zip and replace the boot.img or modify the install script in "META-INF/com/google/android/updater-script", and then rezip it.
    All the other files in the zip are system signed files, which means that you can further unpack them, but not modifiy and recreate as you will never get the signing certificates from FYT.
    Other files inside the zip are mostly used to create and install the necessary partitions where the system software and Android software is installed to.

    III-a. More details about the files inside the 6315_1.zip and how to decompress and unpack/"open" them

    You will find for example the system*, vendor* and other "pairs of three" files. Next to these files you will see a number of bin files including the u-boot files, which are the bootloaders. You can consider these u-boot files like the BIOS on older, or UEFI on newer pcs.

    As example we look at the system.new.dat.br, system.patch.dat and system.transfer.list files. This set actually contains the system partition. The system.new.dat.br is a brotli compressed image. The patch files can contain patches and is implemented after the system.dat (but on our firmwares always empty). The transfer.list contains the "blocks" on how the system partition should be created.

    Let's unpack such a set of files.
    First we need to "brotli decompress" the system.new.dat.br (note that this binary doesn't show output and takes quite long).
    Code: 
    brotli -vd system.new.dat.br -o system.new.dat
    Now we need sdat2img to convert our created system.new.dat "sparse data image"(1) into a "disk image file"(2) being system.img. Note that sdat2img is a python script, so we need python as well (standard on linux, unix and MacOs).
    Code: 
    sdat2img.py system.transfer.list system.new.dat system.img

    On linux/MacOS we can now easily "mount" this system.img image file and check the contents:
    Code: 
    mkdir system
sudo mount -o loop system.img system
ls -Rl system

    (1) sparse image: To make the images smaller, and to reduce transfer time, Android generates system.img, vendor.img and other img partitions in sparse format. The image is split into chunks of multiples of 4096 bytes. Any chunks that contain no useful data are marked as "Don't care" and no data is sent.
    (2) disk image file: A disk image (file) is a type of file that contains an exact copy of a certain disk or partition. On Android (and linux) these are mostly ext4 partitions/disks but can also be Fat32/squashfs (compressed, often used in older Androids)/DMG (MacOS, also for installers)/NTFS, etcetera.


    III-b. Recompress uncompressed images from the 6315_1.zip to squashfs format for small (!) and easy access. (Not for flashing.)

    So you have your brotli compressed system image (system.new.dat.br) of approximately 500MB, which you can't use at all in this state.
    And you have uncompressed it to a system.img of 1.3GB (see previous section), which you need to "mount loop" to view it contents.
    Can I do this differently?
    Yes, you can with squashfs (explained for linux and/or MacOS), for which you first have to install the squashfs tools.
    Mount your system.img like mentioned above and then create a squashfs image.
    Code: 
    sudo mount -o loop system.img system
sudo mksquashfs system system.img.sqsh
sudo umount system

    Now you have a squashfs compressed system image of about 550-600 MB instead on an uncompressed system.img of about 1.3GB.
    To examine its contents you mount it like
    Code: 
    sudo mount -o loop system.img.sqsh system

    ==================================================================================


    IV. Some info on partitions

    This info is referring to the partitions being created from within the 6315_1.zip.
    Starting with Android 10, Google introduced "dynamic partitions". Below a quote directly taken from the Dynamic partitions page.
    Dynamic partitions are a userspace partitioning system for Android. Using this partitioning system, you can create, resize, or destroy partitions during over-the-air (OTA) updates. With dynamic partitions, vendors no longer have to worry about the individual sizes of partitions such as system, vendor, and product. Instead, the device allocates a super partition, and sub-partitions can be sized dynamically within it. Individual partition images no longer have to leave empty space for future OTAs. Instead, the remaining free space in super is available for all dynamic partitions.
    Click to expand...
    Click to collapse
    Apart from the /oem partition and a few others, the /system, /vendor and /product partition are read-only. In earlier FYTs, you could use the lsec script to make them read-write and then modifiy content, add/remove files/apks, etcetera from these partitions. The big disadvantage for modders with these new dynamic partitions is that you can't make them read-write anymore.


    V. The lsec_updatesh folder, lsec6315update binary and 7862lsec.sh script (and what about "universal" scripts)

    The flashing process consists of a number of steps:
    1. flashing the core/kernel software (6315_1.zip)
    2. flashing the unit applicable apps and libraries plus initial properties (AllAppUpdate.bin)
    3. scripts that do "post flash" activities.
    The "flashing" executable/binary also starting the scripts, is the lsec6315update file on a uis7862.
    A USB-stick used to execute a script on a uis7862 should contain:
    Code: 
    lsec6315update
lsec_update/7862lsec.sh
"stuff that needs to be copied/moved/installed"
    Practical applications:
    • Making patches, an alternative to creating the AllAppUpdate.bin file by simply specifying an apk (or so) in your script.
    • Delete unnecessary files or applications (who uses the calculator app?), or overwite/change files like the fyt.prop, config.txt or others.
    • Set properties that normally require root/admin rights.
    • Create a nearly flashable backup using this script (to be added) by creating backups of your FYT apps and config files and immediately zip them to an AllAppUpdate.bin and add some more necessary files.
    • Creating backups of your partitions using the dd command. This can be handy on a device for which you do not have a firmware yet as backup.
    • Rooting your unit, also if you do not have a firmware from your supplier.
    • Make a "modded" ROM by simply doing all kind of modifications after the "normal" firmware flash using the 7862lsec.sh script.
    • Flash a new config.txt to your unit: Simply copy your modified config.txt and the lsec7862update binary onto a clean USB-stick.

    For more info on writing scripts, see below.
    ==================================================================================
    Creating your own lsec script to copy/replace a modified FYT apk.

    If you want to create your own script to flash a modified FYT apk to your unit to replace an existing FYT apk, you can use the following steps.
    Below is described for a uis7862 (ums512) and for a uis8581 (sc9863a). These units are compatible.
    On your USB-stick you need to have the following files.
    Code: 
    lsec6315update                       (binary)
lsec6316update                       (binary)
lsec_updatesh                        (folder)
        7862lsec.sh                  (shell script)
        8581lsec.sh                  (shell script)
OEM_APP                              (folder)
        190000000_to_be_replaced     (folder of the apk)
                190000000_to_be_replaced.apk  (some apk we want to replace)
    Inside folder "lsec_updatesh" you have to create two shell scripts (on Windows NOT with notepad, but a good ascii editor).
    The binary "lsec6315update" and shell script "7862lsec.sh" are for a uis7862.
    The binary "lsec6316update" and shell script "8581lsec.sh" are for a uis8581.
    (You can do the same for two other type of FYT units: the "lsec6521update" and "lsec.sh" for a sc9853i. And the "lsec6523update" and "lsec.sh" script for a 7731. Note that these two units are also compatible. I have created scripts (for other purposes) that contain 4 binaries and 3 scripts, as the lsec.sh script is the same for the sc9853i and the 7731).

    Note that for replacing FYT apks, the 7862lsec.sh script and the 8581lsec.sh script can be identical as they use the same firmware when it comes to AllAppUpdate.bin.
    Let's say we have an apk called 190000000_to_be_replaced.apk.
    The following is for ALL 7862 and 8581 FYT units, but not T'eyes units. Those T'eyes guys do it differently (and let you pay for a lot of things).
    On ALL the other non-T'eyes FYT units, the apks are installed in folder "/oem/app" inside their own folder "190000000_to_be_replaced". In that folder we then copy the "190000000_to_be_replaced.apk".
    We use the following template for our script.

    Code: 
    #!/system/bin/sh

#Remove the current app data/program cache/cache. This is only necessary for some applications, but it never harms
rm -rf /data/dalvik-cache/profiles/190000000_to_be_replaced
rm -rf /data/data/190000000_to_be_replaced
rm -rf /data/dalvik-cache/arm64/*190000000_to_be_replaced*
#
# Copying file to /oem/app
#
cp -r /storage/sdcard1/OEM_APP/* /oem/app/
#
# Updating folder/file access rights
#
chown -R 0.0 /oem/app/190000000_to_be_replaced
chmod 755 /oem/app/190000000_to_be_replaced
chmod 644 /oem/app/190000000_to_be_replaced/190000000_to_be_replaced.apk

    If your script needs to do other things you can take a look at some of the scripts in my github repository.


    See this post #228 for more info about the "The lsec_updatesh folder and lsec.sh script" as it was used on the SC9853i (and now again on the sc7731 (uis8141e).
    ==================================================================================


    VI. Compatibilty between uis7862 (ums512) Firmwares

    As mentioned under the relevant topics above:
    • The 6315_1.zip should be identical between all uis7862 units. Of course newer releases can contain updates, etcetera.
    • The AllAppUpdate.bin is application wise compatible between same aspect-ratio compatible screens like 800x480, 1024x600, 1280x720. The great separator here is the ro.build.fytmanufacturer property. If you flash an AllAppUpdate.bin from a Mekede firmware (with id=1 or id=116) to a Joying (with id=43 and lately also id=1) or vice versa, you might get a perfectly working unit, but a big yellow bar in the top of your screen mentioning that the MCU is incompatible. However, due to real differences in MCU firmware (which is in general not compatible), you might also encounter serious issues. Not because the software is incompatible, but because it behaves differently on another MCU.
    • The optional MCU firmware. This is definitely NOT compatible!

    So what can you do when seeing upgrades from other suppliers?
    1. You could take the 6315_1.zip if it "seems" to be (far) more up-to-date than your currently installed system (/system, /vendor, /product). You can copy it to a clean USB-stick and copy the lsec6315update binary onto the USB-stick and flash it to your unit. In case of doubt, always ask
    2. If it contains a (much) newer AllAppUpdate.bin, you could unzip it, find the fyt.prop and update the ro.build.fytmanufacturer id to the id in your original firmware/fyt.prop and repack the AllAppUpdate.bin. Then you copy to a USB-stick:
      • the just (re)created AllAppUpdate.bin.
      • an "update.cfg" containing "twipe_all (preferred) or "twipe_data".
      • the original or a modified "config.txt" onto it.
      • the lsec6315update onto it
        In case of questions, always ask.
    3. Another option will be described here, but not ready yet

    Some remarks about current "seemingly different" FYT units.
    • The uis7862 (ums512) versus the sc9863a (uis8581a) : These units are compatible on AllAppUpdate.bin, but note the ro.build.fytmanufacturer. That is also of importance here. They are NOT compatible on kernel/core level so you can't flash the 6315_1.zip (uis7862) or 6316_1.zip (uis8581a) to each other. However, with above mentioned measures you could flash a newer AllUpdate.bin from a uis7862 onto a uis8581a, or vice versa.
    • The sc9853i versus the sc7731 (uis8141e): Also these units are compatible on AllAppUpdate.bin, but note the ro.build.fytmanufacturer. That is also of importance here. They are NOT compatible on kernel/core level so you can't flash the 6521_1.zip (sc9853i) or 6523_1.zip (sc7731) to each other. However, with above mentioned measures you could flash a newer AllUpdate.bin from a sc9853i onto a sc7731, or vice versa.
    ==================================================================================


    VII. FYT firmware types over the different CPU configurations

    To be written.



    VIII. Flashing a Full firmware, an AllAppUpdate.bin or a new system/kernel/core from another reseller

    To start with: If you do not have a T'eyes unit, do not flash T'eyes firmware. T'eyes uses all kind of paid extensions, which you can only activate by paying and registering your T'eyes' unit id (which you do not have of course because you do not have a T'eyes). Next to that: If you do not use their extensions, the "normal" programs like Google Voice/Assistant can be blocked.

    Before flashing:
    First heck the FYT reseller id of your firmware. Install a good file manager like Total Commander. Go to /oem/app. In that folder you will find a file fyt.prop (In Total Commander, right-click the file, "Open As" -> Text".
    • Inside this file you will find a line with ro.build.fytmanufacturer=43, where the number is the id of the reseller id of your unit (43 is Joying). Write down that number!
    • Inside this file you will find a line with ro.fyt.uiid=<x>. Write down that number as well!
    Another option to get all this info is running my HWGet_Info.apk on your unit which will immediately show some FYT properties and give a zip with a lot of info. This zip file is completely anonymous and does not contain any user data!

    Inside that same folder /oem/app you will find the file config.txt. Copy it to a USB-stick and save it carefully. In case you still have the original firmware of your supplier, you can find inside that zip/rar file the same config.txt. Make sure your have the config.txt belonging to your unit!
    If you copy a firmware from another reseller, or a modded AllAppUpdate.bin, this config.txt may have more or optimized options. Some options from the config.txt from your unit must be copied into the config.txt of this new firmware before flashing.
    The options that need to be copied from YOUR config.txt into the new config.txt:
    • Find the line ro.sf.swrotation=xy (values 0, 90, 180, 270) . Use the value from YOUR firmware in the config.txt for this new firmware.
    • find the line with sys.fyt.bluetooth_type=x. The value is normally 0 or 1, but can sometimes even have other values. Use the value from YOUR config.txt for this new firmware.
    What option to flash do I have:
    There are 3 options to flash:
    • Full firmware
    • System/kernel/core only: this is only the 6315_1.zip
    • Application software: this is only the AllAppUpdate.bin (plus some additional files).
    Actually you have a few more options:
    • You can flash a new bootanimation.zip and/or boot logo to your unit by copying the lsec6315update binary and your bootanimation.zip and/or your LOGO.bmp onto a clean USB-stick (This does not work on Teyes units unless you use the Vincent Vega mods from @gordgelin).
    • You can flash a new config.txt to your unit by only copying that config.txt and the lsec6315update binary onto a clean USB-stick.

    Create the USB-stick for flashing:
    • For a System/kernel/core only flash, copy the lsec6315update and the 6315_1.zip to a clean fat32 USB-stick. Connect it to your unit and flash it.
    • For an Application software flash, copy the lsec6315update, AllAppUpdate.bin, updatecfg.txt and config.txt to a clean fat32 USB-stick. Connect it to your unit and flash it. Note the above mentioned fyt.prop and config.txt
    • For a Full firmware, copy the lsec6315update, 6315_1.zip, AllAppUpdate.bin, updatecfg.txt and config.txt to a clean fat32 USB-stick. Connect it to your unit and flash it. Note the above mentioned fyt.prop and config.txt
    During flashing, let the software do its job and don't start playing with buttons, knobs, air conditioning, etcetera. After reboot wait 3-8 minutes more for some post-flash steps.



    IX. If everything goes wrong and your unit ends up in a boot loop or doesn't get past the boot logo.

    - Download a fresh firmware from your reseller.
    - Unzip it to an SD-card/USB-stick (as normal)
    1) Simple solution: Put the USB-stick/SD-card in your unit and wait till it reboots and starts the flashing.
    2) More complex softbrick:
    • Put the USB-stick/SD-card in your unit
    • "push" the Reset (RST) with a paperclip or something like that.
    • When the boot logo appears, reset the unit again. Now the flashing process should start.
    3) Most complex softbrick:
    • Put the USB-stick/SD-card in your unit
    • "push" the Reset (RST) with a paperclip or something like that.
    • When the boot logo appears, reset the unit again. Now the flashing process should start.
    • Sometimes you need to reset up to 3x times.
    • If after 3 times resetting the flashing still doesn't start, your recovery partition is damaged.
    (or use your self created backup using the script from post #4)
    View
    20
    surfer63
    surfer63

    Backup the application data of your uis78672 (ums512) unit (or your sc9863a (uis8581a) unit).​


    This is especially useful if you do not have an official firmware from your supplier yet. The kernel/cores are universal on these FYT uis7862/uis8581a units, but the AppUpdate is not.

    This works on both the uis7862 and the uis8581a. I don't have this ui8581a unit but it is actually the same for these two types of FYT units.

    It will actually also make a backup of your sc9853i unit, but there it requires some extra follow up steps. Next to that: There are already many firmwares that can simply be downloaded.

    This script will create a directly flashable backup!

    appBackup script

    • Unzip the contents of this zip onto a clean usb-stick.
    • Insert it into your unit and let it reboot.
    • It will make a backup of the specific firmware part into folder BACKUP onto the USB-stick (which should therefore have >1GB free space).
    • When it is done, you will have four (4) files in this BACKUP folder: AllAppUpdate.bin, config.txt, lsec6315update or lsec6316update, and updatecfg.txt
    • If you copy these four files to a clean usb-disk and also copy an 6315_1.zip (for uis7862) or a 6316_1.zip (for a uis8581), you can always restore your unit to its factory settings.

    Restore option I:
    For a uis7862: Copy the AllAppUpdate.bin, config.txt, lsec6315update, updatecfg.txt from the BACKUP folder onto a clean USB-stick. Insert that one in your unit and let it flash your unit.
    For a uis8581: Copy the AllAppUpdate.bin, config.txt, lsec6316update, updatecfg.txt from the BACKUP folder onto a clean USB-stick. Insert that one in your unit and let it flash your unit.

    Restore option II:
    In case option I still gives you an unstable system, you need to do a complete flash. For that you also need to flash a new kernel/core.
    • Download the universal kernel/core for uis7862 (current version: 07 December 2021). (For uis8581 download yourself)
    • Unzip it to the same USB-stick which you used in "option I". This means that this content will be added to the USB-stick. It will not replace the content.
    • Insert that one in your unit and let it flash your unit.
    View
    14
    surfer63
    surfer63

    Mods and Tweaks​


    ==================================================================================

    1. disable or (re-)enable the mediaplayer at startup/wakeup.​

    FYT mimics the behaviour of many builtin car units that it continues with the player or radio or BT connected phone player, that was active during "switch off". These 2 scripts can disable that behaviour (I want silence when I start my car) or enable it again (default FYT behaviour). This is a shameless copy of @gordgelin scripts with a slight modification where @gordgelin adds the command at the 16th line whereas most standard firmwares have max 8 lines or so. My script simply adds the line to 4th line of config.txt. Works on uis7862 (ums512), sc9863a (uis8581a) and sc9853i (could easily be ported to other FYT units as well).


    ==================================================================================

    2. Script to correct the fytmanufacturer id in the fyt.prop​

    In case you get a big yellow bar with red letters in the top of screen saying "UI and MCU does not match", your fytmanufacturer id (ro.build.fytmanufacturer= XY) is incorrect.. (See also Q13/A in post 1 and section II. and vI. in post 2.
    If you still know the original id, you can use this script to correct that entry again without completely reflashing your unit.
    Read the README.txt carefully !!
    You can download this script: ChangeFytmanufacturer


    ==================================================================================

    3. Script to correct the screen orientation of your unit.​

    Probably you are here because you did not read the Forum well enough (especially "VIII. Flashing a Full firmware, an AllAppUpdate.bin or a new system/kernel/core from another reseller" in post #2 and flashed a firmware to your FYT with a different screen orientation.

    What does this script do?
    It can set the correct orientation for your screen. This is set by a property called "ro.sf.swrotation=xy", where xy is a value of 0, 90, 180 or 270 . Use the value from YOUR ORIGINAL firmware in the config.txt.
    You will find a config.txt with this script that contains the default value for most units being ro.sf.swrotation=90
    In case you have no longer your original firmware you simply need to experiment with the above values until you have the right one.
    You can download this script: ro.sf.swrotation


    ==================================================================================

    4. Two scripts to flash any FYT AllAppUpdate.bin to your unit.​


    What do these scripts do and how to use them
    These scripts are for both the uis7862 (ums512) and for the UIS8581a (sc9863a).
    The AllAppUpdate.bin, that contains the FYT application layer, is for both CPUs the same.
    The scripts make a copy of your current config and use that to flash your unit using that config of your unit.

    Some information to start with
    FYT units do have an MCU and based on the type of manufacturer you can have a different MCU firmware. This MCU firmware is totally different from the normal downloadable firmware that you can get for your unit having new functionality, bugfixes, etcetera..
    The Android layer is universal on FYTs but works slighly different for different MCUs.
    How this Android layer should act on the underlaying MCU is determined by a property called ro.build.fytmanufacturer which can have several values.
    A second and third property are the:
    • sys.fyt.bluetooth_type property which is normally 0 or 1, but on the new M6Pro/M6Plus models anything up to 7
    • ro.sf.swrotation. This property defines the screen orientation and is in 95% of the cases 90 (degrees), for Joyings often 270 and for Tesla screens (0 or 180).
    These properties are in the fyt.prop file and in the config.txt file. These files are copied from your unit onto the usb-stick by the pre-flash script.

    Important
    BEFORE YOU FLASH ANYTHING TO YOUR UNIT, YOU FIRST NEED TO RUN THE "PRE-FLASH" SCRIPT !!

    Steps to perform
    1. Take a clean FAT32 formatted USB-stick (or a (micro-)SD-card in some USB reader/writer).
    2. Copy the contents inside the "pre-flash" folder onto the USB-stick (not the pre-flash folder with contents, but the contents inside the pre-flash folder).
    3. Insert it into your unit, let it reboot and go into recovery mode, and wait until the green message tells you that you can remove it again.
    4. Delete the "lsec_updatesh" folder including contents on your USB-stick !
    5. Make sure to keep the "myconfiguration" folder and check its contents: It must contain a config.txt and a fyt.prop. If correct: copy this myconfiguration also to a save place. You never know when you need a backup. If the folder does not contain those files or one of them, then don't continue but ask in the forum.
    6. Copy the AllAppUpdate.bin that you downloaded somewhere onto the USB-stick.
    7. Also flashing the 6315_1.zip or 6316_1.zip?
      • UIS7862: If you want to flash the kernel as well, copy the 6315_1.zip onto the USB-stick.
      • UIS8581a: If you want to flash the kernel as well, copy the 6316_1.zip onto the USB-stick.
    8. Now copy the contents of the "flash" folder onto the USB-stick.
    9. Check your "lsec_updatesh" folder. Do you now also have a "lsec_updatesh (1)" folder, or inside the "lsec_updatesh" folder something like a "7862 (1).sh"? It means that you did not delete the "lsec_updatesh" folder on the USB-stick, or that your file manager does not overwrite on copying. In this case: Redo step 4.
    10. Copy (not move) the config.txt inside the "myconfiguration" folder into the root of the USB-stick.
    11. You can now flash your unit using this USB-stick.

    Remarks
    • If you are thinking of using this in combination with @mariodantas' kernel, you need to know what you do. Mario's kernel comes with its own scripts and fmc app. Of course you can combine this if you know what you do, but do not simply copy everything on top of each other on this USB-stick. Please keep it separate.
    • You can also combine it with PeaceOS, but also in this case @LLIyT_HuK's version comes with it's own scripts. So know what you do.
    • The flashing script uses "twipe_data" in its "updatecfg.txt". This will clear your settings and all 3rd party apps which you downloaded from the Play Store or sideloaded from other locations. You can disable that by putting a # in front of the twipe_data line, but that is your own responsibility.
    • Most newer firmwares nowadays come with an lsec script and a fyt_build.prop. This fyt_build.prop comes with a fake property to set Android to 11 or 12. I refuse to go with that absolutely incorrect and despicable behavior and I will not copy it.
    • Once you have made your pre-flash copy of your config, you can also use the flash script to copy any modified fyt.prop or config.txt to your unit without using an AllAppUpdate.bin.

    You can download both scripts in one zip: flash_any_AllAppUpdate.zip
    View
    12
    S
    seb21
    BeeFGee said:
    Thanks for the good idea!
    Unfortunately in my case, the cars SWC are all through CANBUS and so I haven't connected the KEY1/KEY2 inputs to the HU at all. In so doing, I am relying on the CANBUS manufacturer to intepret those button presses as "mode, vol +, vol - ", which is unfortunately unable to be remapped at the moment.

    I may just install a simple aftermarket remote to the KEY1/KEY2, to use my current SWC controls, AND the after market ones in parallel. Then I will remap the after market buttons, to whatever I want, eg. Button 1 = Spotify, Button 2 = Tidal etc ".

    Will update if I manage to get the parts off Aliexpress soon!

    Cheers!
    Click to expand...
    Click to collapse
    Hi.
    Maybe i have solution for you.
    I have modded the ms.apk to add some extra functionality. One of the extras is to modify Canbus based Steering Wheel Controls. The mod is two part : modded ms.apk and settings app.
    All info is in explanation.txt file.
    You must replace your syu.ms.apk with this modded apk. Mod Config App.apk is normally installed as every apk.
    View

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