[GUIDE] Android 8 API27 SUPERMOD for YT9216BF YT9216CFJ YT9216BJ YT9216BFJ YT9216CJ - root, Viper4Android, TWRP, Custom UI, brick recovery and more

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Square_Four

New member
May 8, 2023
2
0
hello,

i have aYT9216CJ and follwed the instructions from the first Post. but when i am trying to load the memory sp flash tools is seaching but finds nothing.
i tried different Windows Versions etc.

did forgot somthing ?

device manager shows the head unit as Android ADB Interface
 

ExtremeMOD

Senior Member
Aug 14, 2020
1,131
264
London
extrememod.co.uk
hello,

i have aYT9216CJ and follwed the instructions from the first Post. but when i am trying to load the memory sp flash tools is seaching but finds nothing.
i tried different Windows Versions etc.

did forgot somthing ?

device manager shows the head unit as Android ADB Interface

There is an issue with the drivers. It should not show up as an Android ADB device. Make sure your head unit is completely disconnected from power. Won't work on Windows 11
 

Square_Four

New member
May 8, 2023
2
0
Currently i am using a virtual Box Windows 7.

Disconnect Form Power means that After i Start the Memory read i Connect the usb And then Power up the Head Unit ?
 

ExtremeMOD

Senior Member
Aug 14, 2020
1,131
264
London
extrememod.co.uk
Currently i am using a virtual Box Windows 7.

Disconnect Form Power means that After i Start the Memory read i Connect the usb And then Power up the Head Unit ?

if nothing happens after inserting the USB cable, then connect the unit to power. After the memory read is done, disconnect from power and then the usb cable. Repeat every time the USB cable needs to be inserted.
 

SMARTJUAN

Member
May 2, 2009
17
4
Hola, pude instalar esta rom en mi dispositivo, no sin un pequeño problema, en ADB no pude conectarme, funciona bien, Me gustaría eliminar alguna aplicación del sistema si es posible, lo he intentado con algunas de las aplicaciones que ya están instaladas pero no puedo obtenerla. Cualquier consejo, saludos y muchas gracias por el tiempo invaluable que se ha dedicado al desarrollo.
 
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SMARTJUAN

Member
May 2, 2009
17
4
También le digo que mi dispositivo era XY9217B. Tengo archivos dispersos y precargadores para proteger el dispositivo en caso de que todos los servicios, el uso y el subiré a mega, el mío estaba muerto y reviví con estos archivos, eso es si Android 9.1 es lo único que tengo parpadeando con el tipo de los que se encuentran, saludos.
 
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electro_bordeaux1

Senior Member
Nov 8, 2020
110
4
hello to all members
I have an android car radio AC8227L YT9216 ver 0.1
black screen after a bad update the problem is that I don't have a backup file
is there a solution to have the scatter file and the suitable preloader and thank you
 

electro_bordeaux1

Senior Member
Nov 8, 2020
110
4
hello ExtremeMOD
I have an AC8227L YT9216 android car radio.
black screen after fake update
the problem is that I did not make a backup of my unit
I tried to revive my post via spflashtool
I tried with several software YT9216 1G and 2G but without success the only thing that works is that the appearance of the android logo which lights up and goes out
for information the scatter and preloader are downloaded from the xda site but the progress of the download works well
I don't know how can you guide me brother ExtremeMOD
and thank you very much
 

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Dec 31, 2009
5
0
i, I have successfully installed the 1GB version of this mod. Presumably my HU is lying about 2GB RAM as SPFlashTool reports 1GB installed during the memory check. I'm slightly confused about exactly what unit I have though. Prior to the mod the system info showed mine to be 'SHA23', presumably an attempt to hide what it really is (ie YT921XXX) and CPU-Z wouldn't run on the original firmware. Vivid Launcher showed it to be a YT9216CJ so I installed the mod and radio patch. Now CPU-Z reports it as a 9216BJ.

Any advice on what it is I've actually got would be appreciated. Also, I think the answer is no, but could I downgrade to the Android 6 version of this mod? The more stable root and greater speed would be useful.

Also, despite installing Viper4Android the sound quality remains somewhat poor, but way better than the original. Is there a guide somewhere or some pre-made settings I can try as I have no idea what the options do. Finally, whilst I know enough to follow this guide I don't know anywhere near enough to understand how this unit processes audio. If I was to use the 2x RCA out plugs I have for left & right audio and connect them to a good quality external amplifier would that bypass whatever in this unit is cheap and makes the sound quality poor?
 

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ExtremeMOD

Senior Member
Aug 14, 2020
1,131
264
London
extrememod.co.uk
hello ExtremeMOD
I have an AC8227L YT9216 android car radio.
black screen after fake update
the problem is that I did not make a backup of my unit
I tried to revive my post via spflashtool
I tried with several software YT9216 1G and 2G but without success the only thing that works is that the appearance of the android logo which lights up and goes out
for information the scatter and preloader are downloaded from the xda site but the progress of the download works well
I don't know how can you guide me brother ExtremeMOD
and thank you very much

Sorry but without backup there is very little you can do. We can try repair this for you if you wish to send your unit to our workshop in the UK.
 
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ExtremeMOD

Senior Member
Aug 14, 2020
1,131
264
London
extrememod.co.uk
i, I have successfully installed the 1GB version of this mod. Presumably my HU is lying about 2GB RAM as SPFlashTool reports 1GB installed during the memory check. I'm slightly confused about exactly what unit I have though. Prior to the mod the system info showed mine to be 'SHA23', presumably an attempt to hide what it really is (ie YT921XXX) and CPU-Z wouldn't run on the original firmware. Vivid Launcher showed it to be a YT9216CJ so I installed the mod and radio patch. Now CPU-Z reports it as a 9216BJ.

Any advice on what it is I've actually got would be appreciated. Also, I think the answer is no, but could I downgrade to the Android 6 version of this mod? The more stable root and greater speed would be useful.

Also, despite installing Viper4Android the sound quality remains somewhat poor, but way better than the original. Is there a guide somewhere or some pre-made settings I can try as I have no idea what the options do. Finally, whilst I know enough to follow this guide I don't know anywhere near enough to understand how this unit processes audio. If I was to use the 2x RCA out plugs I have for left & right audio and connect them to a good quality external amplifier would that bypass whatever in this unit is cheap and makes the sound quality poor?

Check this label on your motherboard. That's your system. (Could be different color than green but it always sits on the connector as in the pic)

ImkJzEZVhXNmkbHinVsBedT4kcGdz4KdTekYhvVydCtQjd8-CS4Xto9PghjNiFE7nfpni54uxqIw5VdS0cpacC7akdLXEK9E3pEhpiYFBwdqghYxvnQqjax1ya7xtYFRyOg0IeamXMRLGiTvQ4qrFZ5zFOOsYqx22dLzhy2bRQ6OcMGR2g3iW9VoZJyflj6GnzNv_hUxWx5cTIeK5veCu5-RT4ez2JT77pb7JqMcQvhHekoG43Z6QhWpD3SBi0_gDq8IridLXIRznHWZMMk56FXZk94vx8CsiAntVJNIhqak2ZJmX1FFt_U0iLZs21j9_GX8V1G0MK5UqoQZrcQnNdWzSF1AYIOxjIJpeAPNlXmeTR3Nl3JMSKpxllc1Y9db0Ho_i3KDNzajAUkhZboUfOOtWI-ftEjGJjjMhuplwDOxoxfeNT3Wtzj8yXurcPNVZP7V4OJYnuIgOU_m77HZRvOYJOFvM--vMLeAG43R37MgmzEIL2h08zrKpJsD3r4G8MtZJdOlyx51XCpJCjrm6OL30qxIWH2bpDdN92OdtoOd3JGuwr9vGRKADT7knxlqyGjYlOxBIEua6F0Z-JD088_yqpcf7H8cbFqYAQzjh9fwhcDV9MHNFqKRTt39qsrLLbXr6JnHP2vMZc_M8se29UfxPtZt6yGH-MycWs6wlCHV30ZYund1VrQm_FhWR_n8vSvQqmSDBdmq6VbGHvWU2PKwNKeymmhrkrF7ZLu5edBR-sQpaVAmCsYGGTm0hArF_gyILuf6rxhMs8RQ1xhF6AOFVftyuDRwNVESaFU3370bwMK2leZDfRpZSOz1Zu5GV-TrDdixcbWGUoUkqAx4ach_wKX__NpqLprk9pxcFuriBVE32RID9zzXuF1uuLFUPjsu3iQhuEz1Z3C7ctTW6VwXMCG16_ElflMtXGAzi1c7ZoHcMhIIKbF4VctDmIdoXVm4ZVaRrEGjP7YsF0k9yF7ESdp6t3Yx-qm05vw5kwz1lw7KUltkGtwUJn8uhYKyhftpAyFGwMKR39JyElsKN2o_IGg=w2726-h1243-s-no
 

electro_bordeaux1

Senior Member
Nov 8, 2020
110
4
Thank you Extreme MOD for your answer
therefore impossible to save the life of this unit even by looking for a scatter and preloader?
 

sectaur

New member
May 28, 2023
1
0
Hello, I would like to buy the right radio for the mod, can someone give me a buy recommendation. I would like the extremeMOD AHU v2.0 mod
i saw some on ali... with a suitable panel for my car. the models are difficult or impossible to distinguish!
 

Chook_Look

New member
May 30, 2023
3
0
Hi all! I’m a new user here. I’ve had my head unit for a little bit now, but have been really curious about rooting etc.
I’ve done heaps of research but am honestly a bit nervous about it all.
Just really want to make sure everything is all good before I do this mod.
Attached are photos of my 2 info screens, but I have also added photos of info from DevCheck Device and System Info app.
Dunno if that helps but I thought I’d add them.
It does say it is rooted, but if I run rootcheck, it says it’s not installed correctly? Weird.
Thanks in advance.
 

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  • 30
    Hi all,

    If you want to greatly improve the way your head unit works, sounds and looks like - you've come to the right place!

    Why install this?
    With this package you will greatly improve:
    • Stability
    • Speed
    • User Interface
    • Sound tweaking options
    • Customisation options
    20210805112900.jpg 20210805091905.jpg 20210805091639.jpg 20210805091836.jpg 20210805112820.jpg

    • ON PHYSICAL BUTTONS: this software has only been tested on head units with no physical buttons (like volume) | Before making any changes, access the CAR SETTINGS -> FACTORY SETTINGS -> ENCODER SETTINGS on your head unit and take a screenshot of the current settings (see example below). After installing the package, go back to these settings and adjust them if needed. If that doesn't help and if you can't successfully re-calibrate the buttons after installing the firmware, restore your backup

      encoder settings.png

    Disclaimer
    I do not create the software itself but rather use research and put together different mods and hacks into one package that includes very user-friendly step-by-step instructions on how to install it all. You will find the links to original posts in the instructions pdf's if credit is due. The software might include smaller changes made by me and has been fully tested in real units.

    This firmware works on the following 1Gb RAM and 2 Gb RAM units with fake Android 8.1, 9.0, 9.1, 10 and Android 11 installed, with screen resolution of 1024x600 px. It will not work on Tesla-style units:

    - YT9216BF | YT9216CFJ | YT9216BJ | YT9216BFJ | YT9216CJ

    !! TAKE A PICTURE OF YOUR SYSTEM INFO AND KERNEL VERSION BEFORE DOING ANYTHING TO YOUR HEAD UNIT !!


    Screenshot_20181015-082542.png 20210805092140.jpg

    The zip file package contains:
    • Modified firmware - courtesy of Stranger21UFA @ 4PDA (link to the original post)
    • TWRP (separate folders for 1GB and 2GB RAM units)
    • Root via Magisk
    • Viper4Android
    • Car Launcher
    • Boot Animation
    • SEPARATE INSTRUCTIONS ARE INCLUDED IN EVERY FOLDER

    >>>> ALWAYS BACKUP YOUR UNIT BEFORE MAKING ANY CHANGES TO IT <<<<

    !! IMPORTANT !!

    This is a fairly advanced installation process and will require you to follow the individual guides included in the software package - to the letter. Failing to do so, will (in "best" case) result in a slow and buggy head unit and in the worse case - brick it altogether.​


    DOWNLOAD
    YT9216BF * YT9216CFJ * YT9216BJ * YT9216BFJ * YT9216CJ - supermod software package & drivers

    STEP-BY-STEP GUIDE (upgrading from working stock firmware):
    1. DO NOT SKIP ANY STEPS, AND INSTALL EVERYTHING IN THE CORRECT ORDER. STEPS 5 AND 6 ARE MOST CRITICAL.

    2. Proceed to download the software package for your unit and the drivers package in the same folder

    3. It's highly recommended to do these upgrades with your unit connected on your desktop, rather than in the car. Video Guide

    4. Install the Mediatek & ADB drivers on your Windows computer. Video Guide - use the same principle for ADB drivers.

    5. Backup your current system by exporting a full memory dump. Video Guide

    6. Import back your memory dump from step-5 to ensure it fully works. This is how.

    7. Install the package. Separate instructions are included in every folder of the downloaded zip file. Follow them by the order.

    IF THIS SOFTWARE PACKAGE HAS BRICKED YOUR HEAD UNIT AND YOU HAVE YOUR BACKUP AVAILABLE, follow the steps below:
    1. DO NOT SKIP ANY STEPS, AND INSTALL EVERYTHING IN THE CORRECT ORDER.

    2. It's highly recommended to do these upgrades with your unit connected on your desktop, rather than in the car. Video Guide

    3. Install the Mediatek & ADB drivers on your Windows computer. Video Guide - use the same principle for ADB drivers - (download link is in the video description)

    4. Watch this video on Test Point recovery

    5. Import back your memory dump. This is how.

    6. If successful - try to install the software package again or stay with your original one

    IF THIS SOFTWARE PACKAGE HAS BRICKED YOUR HEAD UNIT AND YOU HAVE NO BACKUP AVAILABLE, follow the steps below:
    1. Share the pictures of your System Info and Kernel in this thread and we'll try to help you



    ------------------------------------------

    This post is being frequently updated and you'll find more guides and mods in our signature​

    ------------------------------------------

    ** IF YOU ARE UNABLE TO RESTORE YOUR UNIT, PLEASE CONSIDER DONATING IT TO US @ ExtremeMOD, SO WE CAN BUILD MORE MODS AND TUTORIALS


    Thanks! And if this post is helpful to you please don't forget to "like" it.

    Enjoy!​


    [V4A][VIPER4ANDROID][ViperFX][ROOT][TWRP][8227L][YT9216BF] [YT9216CFJ] [YT9216BJ] [YT9216BFJ] [YT9216CJ]
    4
    Below post is to show my respect & appreciation to iceblue1980 and in addition to share my experience that had for a few days while trying to make my unit better with above firmware.

    As I downloaded firmware package, I chose not to follow his guide by letter & skip a few steps, for example & most important, not to take full back up of memory.
    Then disaster followed, as I almost bricked the unit.
    So I turned back to post/s to find solutions. Iceblue1980 was there, day & night responding to me & sending me several alternatives to try.
    He even volunteered to fix my unit by sending it to him without any money even if he had to spend valuable time for it.
    Finally, after several attempts & lots of files / firmwares / guides he sent me the gold package & we made it work !!!

    I carefully followed his last guide by letter & that was it.

    Now my unit is back to life & even better than ever.

    This guy is awesome & I personally thank him so much.

    To all members, PLS FOLLOW author's
    guides BY LETTER EVERYTIME to avoid surprises !!!!
    AND
    Don't forget to thank the people who are there for you day or night.
    They use lot of their personal time to be there for you & that is priceless !!

    :) :) :) :)
    2
    I flashed this on my YT9216BJ and everything flashed 100%, but when I went to reboot I got nothing. It looks like the unit isn't turning on at all. There is a blue LED on the board that is lit up when I connect power. Any ideas as to what went wrong?

    Sorry to hear that. Please try the following steps:

    1. Completely disconnect your head unit from power, start Flash Tool as Administrator and execute the command: Format+ALL including deleting the bootloader

    2. Run the steps from "Brick Recovery" starting with Step-6.

    If the above doesn't work - revert back to your original firmware by restoring your backup. Share your System Info screen found in Car Settings as well as your build.prop file and we'll have a look.

    Make sure the USB cable is properly attached. The firmware update should not take more than 20 min. If it does, it indicates a bad cable/connection.
    2
    View attachment 5405715my board is this where is the recovery pin ? And where I conect an antenna for wifi

    These are the recovery test points:

    IMG-20210909-WA0006.jpeg

    The Wifi/BT antenna mod is shown here, however I plan to post a proper guide on this particular mod in the future.
    2
    The method I had to use slightly differs from everything I have read.

    1.) I wired a toggle switch to my positive lead. Left it in the off position (no power to head unit)

    You could share a picture of your soldered button. Some folks here might find it helpful :)

    I'm thinking of making a guide going for a permanent mod, where the soldered tactile SMD button will be accessible through a small hole in the back of the head unit (similar to how you access the RESET button). That way you can use a 'needle' to short the test points, rather than picking the unit apart every time.