ROM / Firmware/ Brick Recovery for 7" Android Head Unit AC8227l YT9217 YT9218 1/16GB

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AQuirkyZ

New member
Apr 15, 2022
2
0
Hello, good day to you, thank you for reading this and attempting to help me, here's what happened:
My Tecno Phantom X slipped into the bathtub from the charging port side, I took it out, dried it, opened it dried it from the inside with medicinal alcohol, left it in the sun for an hour or so, wouldn't turn on, nor charge, so I left it open for 24h, then it started holding a charge, turned on fine and everything except that the fingerprint sensor wouldn't work at all not even show in menu, a few hours later it started randomly turn off, literally randomly, could be in 5 mins or 20, could be when the display is on or not, sometimes it would restart or just turn off OR when it's in the recovery or fastboot screen, so I figured it could be something software, tried soft reset and hard reset, nothing.. I unlocked the booatloader, rooted the phone and attempted to flash a stock rom, SP flash tool would always give me the same error "status brom cmd send da fail" so I tried with ADB, I screwed things up, I flashed with fastboot flash recovery sth.img. Afterwards, it would either show the battery without percentage, or boot into "Tecno, powered by Android" and be stuck there, SP Flash tool gives me the same error as before but still detects it, ADB does NOT detect it whatsoever, I have tried so many things, nothing worked, any help would be really appreciated
Thank you for your time and attention,
 
Nov 2, 2021
23
16
Hi,
I think I have bricked my alps FF-5000 8227L device :(
I did the following steps before this happened:
1. I flashed the HU with this firmware: 8227L_8_UI04-国外11_v1_20210421 UPDATE.zip link
2. The process was successful, everything worked fine, but the screen resolution was much bigger than the device native resolution.
3. I found a possible solution (thread) in another forum, according to that I uploaded the attaced files in the zip to the system.
1647029896393.png

4. This process was also successful but after that the system didn't boot anymore. I can see only black screen with backlit.

And yeah, I don't have any dump from the rom. No backups.
I have tried to connect to device via USB cable but my computer doesn't recognize it. Also I have to find the test points so here is the picture of the mainboard.


View attachment 5580359
STEP1 OPEN SP FLASH TOOL . FROM DOWNLOAD TAPE CHOOSE SCATTER AND PRELOADER It is necessary to choose the PRELOADER as in the picture No. 2
STEP2 FROM DOWNLOAD TAPE CHOOSE Download Only PRESS Download
STEP3 CONNECT USB CABLE (4PIN) WITH PC
STEP4 SHORT THE TWO TEST POINTS
STEP5 CONNECT THE POWER 12V TO BOARD DON'T move the short when the process starts
STEP6 AFTER Download THE The device will work again
 

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hosseinpayedar

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Apr 19, 2022
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Hello and do not be bored to all friends Android device mtk series B The radio of the device does not work at all and it is on a wave and no sound comes out and the wave does not move, there is someone to guide The device was factory reset but did not work I enter the radio and write Not available
 

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bhudcser

Member
Nov 29, 2014
28
2
Budapest
STEP1 OPEN SP FLASH TOOL . FROM DOWNLOAD TAPE CHOOSE SCATTER AND PRELOADER
STEP2 FROM DOWNLOAD TAPE CHOOSE Download Only PRESS Download
STEP3 CONNECT USB CABLE (4PIN) WITH PC
STEP4 SHORT THE TWO TEST POINTS
STEP5 CONNECT THE POWER 12V TO BOARD DON'T move the short when the process starts
STEP6 AFTER Download THE The device will work again
Thanks, I'm almost in the finish line but now I get an error message:

1650399389414.png


The unit has 1g ram and 16g rom.
 
Nov 2, 2021
23
16
Thanks, I'm almost in the finish line but now I get an error message:

View attachment 5592997

The unit has 1g ram and 16g rom.
Knowing the test point, there will be no problem in downloading the firmware to the headuint, even if it is not compatible with the headuint, it will not harm anything. You can do the test point again and re-download the firmware that is compatible with your headuint, and most importantly, it is compatible with the screen resolution. It is necessary to know more specifications your headuint so that we know the right firmware for you
(Note I downloaded your update and it made my screen black and the matter was resolved by my file attached to the previous post and the previous steps explained and it worked for me without the headuint losing anything)
MY HEADUINT IS 2g ram and 32g rom. (MTK 8227L_8) (JUNSUN V1) (FF-5000 alps) screen resolution 1024x600
 
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bhudcser

Member
Nov 29, 2014
28
2
Budapest
Knowing the test point, there will be no problem in downloading the firmware to the headuint, even if it is not compatible with the headuint, it will not harm anything. You can do the test point again and re-download the firmware that is compatible with your headuint, and most importantly, it is compatible with the screen resolution. It is necessary to know more specifications your headuint so that we know the right firmware for you
(Note I downloaded your update and it made my screen black and the matter was resolved by my file attached to the previous post and the previous steps explained and it worked for me without the headuint losing anything)
MY HEADUINT IS 2g ram and 32g rom. (MTK 8227L_8) (JUNSUN V1) (FF-5000 alps) screen resolution 1024x600
I absolutely undersand you.

However that error message appears right after my PC detects the head unit com port. I think this is because the scatter file is not compatible with my 16/1g unit, the scatter file you attached can work only with your device (32/2g). So the download process doesn't start at all.

It's good to see there is a possibility to unbrick the device but now I need a compatible scatter file or at least edit somehow :S
 
Nov 2, 2021
23
16
I absolutely undersand you.

However that error message appears right after my PC detects the head unit com port. I think this is because the scatter file is not compatible with my 16/1g unit, the scatter file you attached can work only with your device (32/2g). So the download process doesn't start at all.

It's good to see there is a possibility to unbrick the device but now I need a compatible scatter file or at least edit somehow :S
I will solve it for you Do you have the same attached picture NO.1
It is necessary to choose the PRELOADER as in the picture No. 2
Make the test point in the same way as before
 

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Nov 2, 2021
23
16
Awesome! Based on your instructions I was able to get the unit back to life. You're a genius! :)

Only one thing I have to fix. Screen resolution issue:
View attachment 5593489

Any advice on this?
I am happy for you and to be able to help you, I have to know the original screen resolution in order to search for the appropriate update or the appropriate firmware and download it to the device by SP FLASH TOOL In a previous post I shared the firmware The screen resolution is 1024 x 600 I don't know if it is suitable and we need to know your device's internal specifications to determine the appropriate firmware for it.
It appears from the image that the screen resolution required for you is 800 x 480
All of the above are speculations because I don't know the specifications of your device
 
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bhudcser

Member
Nov 29, 2014
28
2
Budapest
I am happy for you and to be able to help you, I have to know the original screen resolution in order to search for the appropriate update or the appropriate firmware and download it to the device by SP FLASH TOOL In a previous post I shared the firmware The screen resolution is 1024 x 600 I don't know if it is suitable and we need to know your device's internal specifications to determine the appropriate firmware for it.
It appears from the image that the screen resolution required for you is 800 x 480
All of the above are speculations because I don't know the specifications of your device
Yes, right I have not shared it yet. Screen resolution is 800x480, and this was the original firmware version in the system (before I tried to install newer):

1650472592603.png

1650472845805.png
 
Nov 2, 2021
23
16
Yes, right I have not shared it yet. Screen resolution is 800x480, and this was the original firmware version in the system (before I tried to install newer):

View attachment 5593815
View attachment 5593825
We have to look for an update that is suitable for a screen resolution of 800 x 480, I will look for it for you and when I find it I will send it to you, but this will take some time and it may be one of the colleagues in the forum who owns it and sees the post and helps us
 
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bhudcser

Member
Nov 29, 2014
28
2
Budapest
Decompress and copy it to the USB drive . Do an update And the screen resolution after the update will be 800x480
Suitable for (JUNSUN V1) (MTK 8227L_8) ( alps FF-5000)
I wont try this because yesterday night I was able to fix the issue by myself.

Here are the steps:
* Updated the system with this file: 8227L_8_UI03_10_v7_20210814.zip
* I loaded the scatter file and preloader only to the SP Flash Tool from the package that you shared with me (in this post)
* I added logo.bin and metazone.bin file from another package that I previously found in another thread when I looked for the screen fix (attached as 8227L-metazone.zip).

I used the attached zip but with your preloader. This fixed every issues. The system looks like a screen in the attachment.

So I can say the metazone.bin is responsible for the screen resolution.

I would like to thank you for your time and your help! I got a lots of useful information and learned a lot about this chinese HU.

2022-04-21_13h52_34.png
 

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milestone89

New member
Apr 18, 2022
2
0
Hello there guys, you are my last hope. I also bricked my device by accident. Now I need the test points to solder a wire. My pc can't detect the device.
thank you so much in advance
1.jpg
2.jpg
 

Anton TNT

Senior Member
Sep 24, 2020
474
59
Croatia
Android Automotive OS
I wont try this because yesterday night I was able to fix the issue by myself.

Here are the steps:
* Updated the system with this file: 8227L_8_UI03_10_v7_20210814.zip
* I loaded the scatter file and preloader only to the SP Flash Tool from the package that you shared with me (in this post)
* I added logo.bin and metazone.bin file from another package that I previously found in another thread when I looked for the screen fix (attached as 8227L-metazone.zip).

I used the attached zip but with your preloader. This fixed every issues. The system looks like a screen in the attachment.

So I can say the metazone.bin is responsible for the screen resolution.

I would like to thank you for your time and your help! I got a lots of useful information and learned a lot about this chinese HU.

View attachment 5594357
This is firmware from JUNSUn V1 and a nice one !
 
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Dbillo

Member
Sep 15, 2021
8
1
Alguém pode me ajudar por favor?

comprei uma multimídia android chinesa de 9 polegadas com 2 Gb RAM e 32 Gb ROM. Diz ser android 10, mais no aplicativo aida64 mostra ser android 6.0
YT9218 versão 8227L.

mais na placa está escrito YT9260LP.

Tem um adesivo colado nas conexões da placa que dis ser y9216b

preciso de um software de atualização para ela. Alguém tem link para download? Vou colocar fotos para que vocês possam garantir os dados da multimídia. E ver qual realmente é esse modelo. Yt9260LP ou yt9218 ou yt9216B. Qual é o modelo real dela??? Desde já ajuda.
 

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Dec 6, 2020
5
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STEP1 OPEN SP FLASH TOOL . FROM DOWNLOAD TAPE CHOOSE SCATTER AND PRELOADER It is necessary to choose the PRELOADER as in the picture No. 2
STEP2 FROM DOWNLOAD TAPE CHOOSE Download Only PRESS Download
STEP3 CONNECT USB CABLE (4PIN) WITH PC
STEP4 SHORT THE TWO TEST POINTS
STEP5 CONNECT THE POWER 12V TO BOARD DON'T move the short when the process starts
STEP6 AFTER Download THE The device will work again

Hi, I think I bricked my device by using the exact 8227l-metazone.zip mentioned by @bhudcser
I'm very new to using SP flash tool and playing with motherboard. Is there any other way the device can be unbricked using the SP flash tool and USB alone and not doing anything in the motherboard?
 

dodo6

Member
Jan 7, 2021
12
0
hi. is it possible to change the radio app on the 9218DH unit with a dedicated FM chip? most units (for example 9217) have a built-in chip and according to everything you can make a change. I read a lot, but there is little information about the FM app for 9218DH. Thank you
 
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    ROM / Firmware/ Brick Recovery for 7" Android Head Unit AC8227l YT9217 YT9218 1/16GB

    Thanks everyone who contributed in my effort to fix my bricked device. Here is all that I have found useful in successfully reviving my device.
    The files shared here are the ones that worked on my unit (see specs and pictures below) If your device is different, it may or may not work.
    If the device has dedicated radio chip inside, the Firmware number will show as YT9218, if no radio chip, then it will show as YT9217
    Note: if your device is not bricked, Make a full backup before trying another firmware.

    I hope it helps. (donations are always welcome ):highfive:

    Memory dump:
    firmware 20181222 HiFi: (Link) (thanks mazepa2000) (May 2019 update below)
    Rooted TWRP firmware 20190523 HiFi: (Link)

    Preloader (Boot_1) from other Similar Firmwares: (Link)
    Download the one similar to your device's version.

    Firmware via flash tool: Rooted TWRP 20190523 (Link) Thanks Maxkir
    (You may need to remap side touch buttons in Factory settings (code 8888) -> Touch settings -> Click start -> Name of the button -> The button itself ->Repeat for all the buttons -> close -> ok).

    Firmware for YT9213 Device: (Link) (Thanks pajurpl)

    Update / Upgrade Files USB flash drive:
    Firmware 20190522 HiFi: (Link) (Thanks foxgiggle , iSevenAuto)
    Firmware 20190906: (Link)

    MCU 3.1 (Link)(Thanks foxgiggle )
    MCU 2.8 (Link) (Thanks lemmon and foxgiggle)

    Memory Dump Procedure via flashtool:
    (Memory dump is only needed if you need full recovery from a backup. Otherwise you may only need to do the next part.)
    Download and install MTK drivers. (Link)
    Load scatter file and preloader (Link) in spflashtool. Press Ctrl Alt V , then go to Window and select "write memory". In file path select "user", in begin address put 0x0, In Region select the partition named "EMMC_USER". Hit Write memory. After that plug in the usb cable (connected to usb1 port). If the device is not detected, you need to power it on. If still not detected then you might need to short the two test points (see picture) (without power this time) and then plug in the usb cable. Remove the short when write process starts. Check if the issue is fixed. If its not fixed, then do the same to write boot2 and boot1 partitions as well. You may need to download Boot_1 specific to your original firmware from the link above.

    Uploading Firmware (full or parts) via flashtool:
    If you are uploading the firmware available in parts, you only need to upload "BOOTIMG" and "ANDROID" (SYSTEM).
    You may also need to flash "RECOVERY". Remember to uncheck the preloader. Here is a nice instructions file. (Link) (thanks Maxkir)
    There is more info and firmwares to chose from at 4pda forum.

    Update / Upgrade Procedure via USB flash drive:
    Copy the zip file (do not extract) to usb drive or microSD card, (formatted by SD Card Formatter). Connect to usb port 1 or 2. Go to Car Settings, System info. Click Android Upgrade.
    --OR--
    Extract the zip into a folder named XYAUTOUPG into the flash drive or microSD card, connect to usb port 1 or 2 and then reboot. Upgrade should start automatically. You might need to try with different USB drives or sd cards. For some reason this only works with certain usb and cards.

    MCU Upgrade Procedure via USB flash drive:
    Extract the mcu file into flash drive or microSD card. Connect to usb port 1 or 2. Go into system info and update mcu.

    Make a Full Backup/Memory Dump:
    Open SPFlashtool, Select Memory Test Tab, Select only RAM Test (uncheck the rest), push start, and connect the unit. Save the information appeared, in a text file for later. (Read above "Memory dump procedure" for the usb connection setup).
    Now go to ReadBack Tab, Double click on empty space next to tick mark, Select a folder where you want to store the dump file, and Type a name for the dump file you are going to creat, (ie. Boot_1, Boot_2, USER). Click Save. In next window "Readback block start address", select the region you want to make backup of (ie. EMMC_BOOT_1, EMMC_BOOT_2, EMMC_USER).
    Start address is 0x0000000000000000
    Length copy and paste from the text file you created earlier.
    typically for Boot_1 and 2 the length is 0x0000000000400000
    and for USER (16GB models) the length is 0x00000003a8000000
    Click OK.
    Now click on Readback and then connect the unit via usb cable. and Read process will start.
    Do the same to make backup of all three partions. USER will take long time because its the largest partition.

    RDS FM Radio:
    Radio app with fixed RDS, channel names on buttons and HiFi: (Link) (thanks sjguk)
    Copy to FMRadio directory, rename to FMRadio.apk and change permission 764. (or 755 ?).

    Channel name Editor: (Link) (thanks mclaught)
    install as normal. You may need to install GalaPublicResources. Click top right dots.


    Multi Window Mode:
    Go to root folder, look for build.prop. Open in text editor. Change the line ro.build.type=user to ro.build.type=userdebug.
    If no such line is there, then simply add the line at the end. Save and exit. Go to Android settings, Developer options, look for multi window mode and enable it. Swipe down from the top of the window, Click on recent apps tile. You'll see the new multi window option there.

    Subwoofer output Pin:
    The default AUX_out pins are for mid range audio and is controlled by Mid slider in the mixer. The subwoofer output is on another pin (See Picture).
    it is easy to remove one of the AUX_out pin and install it at the Sub output. this pin is controlled by Subw slider in the audio mixer.


    Launchers UI1, UI2, UI4 (Link), UI5 (Link) (Thanks Maxkir)

    Boot animation: (Resolution is 1024x600)
    eg. (Link)
    The animation preview didn't work for me, but I installed it anyway and it worked fine.

    OBD Dongle Bluetooth Setting:
    Open Bluetooth app, Click on settings, tap on the pin code "0000" and type in "1234" instead. Save settings.
    Now search and connect the OBD dongle normally.

    I hope it helps. (donations are always welcome ):highfive:

    Unit Specs:
    motherboard marking YT9217 VER1.5 XY AUTO also 9218 VER2.4 XY AUTO near the antenna
    Model no 8227L_demo android 8.1
    Android YT9217C_00005_V003_20191402_HIFI
    Kernel 3.18.22
    DDR 1GB FLASH 16GB
    CPU A7 1.3GHzx4
    Amplifier AC7315 mos bile duct 45Wx4
    AutoChip ARM AC8227L
    Mediatek MT6323LGA
    Kingston EMMC 16G
    5
    the link takes me to the main page. and then its like finding needle in a haystack.

    All relevant info about ROMs and flashing you can find in top header of this russian forum.
    Look at the spoilers in the gray header layer and use Google translate to understand what is written there.

    There are 3 ROM versions for the 8227L based head units. I downloaded and installed the oldest of the 3 (rooted and TWRP IMG included). Copy all files from the RAR to a flashdrive in root folder.
    Turn off the head unit.
    Connect the flashdrive to USB 1 slot of the head unit.
    Turn on the the head unit.
    The install process starts immediately after turning on.
    It takes about 10 minutes.
    When install process is ready, turn off the head unit.
    Detach the flashdrive.
    Turn on the head unit and it will boot with factory settings like a new device....

    Note that there are also ROMs for flashing wit MTC flash tool downloadable.
    But the versions for installing from USB sticks ( po russki - dla flashky) are more comfortable to install and I don't own a Windows pc. So this variant was my favorite method...

    Regards and good luck...

    Edit: if your unRAR program asks for a password for unpacking the RAR file, then use Eazy unRAR app from Playstore on your Android device - it ignores password lock in RAR file ;) ...

    Edit2: the 5th gray spoiler in the top header of the Russian forum hosts the links to the ROM RAR files...
    4
    Lots of info on those headunits (russian, use google translate):
    http://4pda.ru/forum/index.php?showtopic=936535

    pinout:
    4
    new firmware and MCU

    comming soon:
    16808269.png
    3
    Very nice indeed.
    Im using Agama launcher at the moment, far better than others in my opinion.
    a bit off topic...

    Updated to MCU 2.8 - automatic acc off time delay works > 24hours...
    I modded the UI2 Launcher a little bit for my personal needs.
    See attached screenshot.
    (my car, VW golf plus 2013, is now shown in Homescreen...)