[ROM] [ROOT] [TWRP] [GUIDE] YT9216B Chinese Android Head Unit

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mark-1978

Senior Member
Jun 17, 2015
675
142
@lagakappa96, are you flashing with format + download option in flashtool?
that's the possible culprit, cause if you only overwrite newer files, it can bootloop.

Are there more folks with volume button troubles? Cause when i turn the volume up and down, sometimes it will spontanyously skip volume steps. So you suddenly hear the volume much louder, louder then the volume button rotates. It must be some variable resister thing, with the temperature.
 
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xcoldfire

New member
Dec 2, 2020
3
0
Hi
I have a problem.
I accidentally flashed preloader on my device and now my problem is that i it doesnt connect to my PC anymore. Can someone help me with this problem ?
 

quixcraiova

Member
Feb 12, 2021
31
2
@xcoldfire you need to disassembly your device and use wire to make contact (short circuit) between two points (those in the middle) in your main board when you try to flash it again , after this it will be readable again. Its explained here.
 

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andi_n

Member
Dec 29, 2010
8
0
Loaded YT9216BFJ, YT9260 both V 6.7 (with carplay) on my system.. Original was YT9216B.. Both Builds works absolutely fine..Got additional DSP on 9260 and sound setting under setting vanished.. 9216BFJ showed few more info in Car information (HiFi was missing and No DSP)
Hello,
can someone explain me how to flash this files?

I tried it with flashtool and with a usb stick, but no success.
How to do it with flashtool?

The firmware from gouster3 I fleshed without any problems and it works fine.
But I don't have access to the factory menu.
 

andi_n

Member
Dec 29, 2010
8
0
8888 is the correct password, but it doesen't open the factory menu.
It brings me back to the home screen.

I want to try the frmeware I downloaded at file.xygala.com, but I don't know how to do it with flashtool.
 

andi_n

Member
Dec 29, 2010
8
0
So now I tried to back the firmware from gouster3.
But it show me an error and I should do format + dowmload.

For me this doesen't work, I also tried to put a preloader.bin and tried to change the scutter.

Know is YT9216B_00002_V004 Android 9.1 Car edition, xy Auto 6.6 installed.

How I have to modfy the file from the 1. post to flash it over this?
 

mark-1978

Senior Member
Jun 17, 2015
675
142
So now I tried to back the firmware from gouster3.
But it show me an error and I should do format + dowmload.

For me this doesen't work, I also tried to put a preloader.bin and tried to change the scutter.

Know is YT9216B_00002_V004 Android 9.1 Car edition, xy Auto 6.6 installed.

How I have to modfy the file from the 1. post to flash it over this?
i would try to flash 9260 firmware. Cause it has new options and it also has the battery power drain issue solved. The one in this topic from
Sandesh Bhovi .
 

mark-1978

Senior Member
Jun 17, 2015
675
142
9260 I flashed and it works fine.
But it haves only english language, bluetooth is permantly on and the radio app has no RDS.
if you root the radio, you can add rds through terminal emulator, typing following:

su
settings put system localradio_isShow_rds 0
 

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  • 20
    So... how to root your device?
    how to flash twrp?

    You can use this pre-rooted firmware, with included twrp.
    -Build type is userdebug, means u can enable multi-window mode in dev settings
    -Based on latest available firmware
    -Root
    -Busybox
    -TWRP
    -HIFI enabled
    -UI1 Launcher
    -FM Radio with RDS and save manager.
    -TPMS (working with cheap chineese usb units)
    -DVB-T & SDR (required RTL2832U)
    Its backup of system i already have modified for myself.
    It means, its branded to Ford Mustang all the way.
    U can do this to get rid of that branding:
    -choose another bootlogo.
    -flash new bootanimation.
    -install stock (not modified) UI1 launcher

    To get ADB, i recommend this app:
    WiFi ADB - Debug Over Air

    Download:
    YT9216B_00002_V004_20191012_HIFI_V3.zip

    Factory settings password: 8888

    Important note: Android 8.1 Go is just chineese marketing trick, in reality this head unit has android 6.0 (api lvl 23, not 27 as 8.1 should have).
    11
    Instructions

    Prepare:
    - download and unzip archive from my first post
    - make/buy USB A male to A male cable (for photos see attachments)
    - install drivers from SP_Driver folder

    Backup:
    Just in case make backup (readback in ATC Flash Tool)
    I didnt done it, so if u want, search for guide online

    Flashing process:
    - open flash_tool.exe from ATC_Flash_Tool folder
    - select Download-Agent MTK_AllInOne_DA.bin from ATC_Flash_Tool folder
    - select Scatter-loading File AC8227L_Android_scatter.txt from Firmware folder
    - make sure PRELOADER is not checked. (There isnt any in in my fw. Just in case if u use this guide for some another fw)
    - press Download button
    - connect your USB A to A cable one side to PC, another one to your head unit. I recommend u to use that 4 pin usb port (that one with smaller plastic end), but shouldnt matter.
    - press RST button on your head unit (use some pin, paper clip or toothpick)
    -wait until flashing process ends. There should appear green message.
    - press RST button again and let yout headunit boot.
    - perform factory reset on your head unit to prevent any bugs

    Flashing process error:
    - happends sometimes
    - disconnect your cable
    - if possible, disconnect your head unit from electricity for a while
    - press download again, connect usb cable back, and press RST button.
    - check if your cable is not faulty.
    - for homemade cable try to apply some solder on cable ends, check if ends arent shorted, use tape on them, or buy original cable
    2
    folowed V4A Rom Inclusion
    So, ViPER4Android included in ROM.
    credits to ViPER520
    ViPER’s Audio Website
    ViPER’s Audio XDA Thread
    Users, use “Compatible Mode” if you plan to install other sound mods. No other sound mods included in ROM.
    2
    I saw it on my unit with this rom! I am just uploading a clean one - stay tuned :p

    This one is slightly debloated, stock launcher, Android bootlogo, Android bootanimation

    : https://drive.google.com/open?id=1Tsfm16klrP4uBk5K8sXBvdqvHyL4df25

    ---------- Post added at 10:52 AM ---------- Previous post was at 10:49 AM ----------

    Anyone knows which cable adapter I need for TF-SD Card?

    20200125_153011_small.jpg
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