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

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Khan187

Member
Mar 15, 2021
20
1
Oh I see. If you had Android 6 installed then you can't run this package, nor should you.

Android 6 has much more stable root and in general just a better option for modding.

Please use our Android 6 package for your unit type.
So I finally got it to work. It seems your TWRP pdf instruction step 5 is off. which caused me to have the error. it should be this:

*******Put a copy of your unique scatter and preloader file into the 1. FIRMWARE folder and rename the *.img file into recovery.img FROM 2.TWRP and move the recovery.img file into the 1. FIRMWARE FOLDER********

now I have it installed and running smoother than ever. Now the problem is when im in terminal emulator and run the command it comes to a russian language setup so im installing google translate to see if I can figure it out . Thank you for your instructions
 

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ExtremeMOD

Senior Member
Aug 14, 2020
805
189
41
London
extrememod.co.uk
So I finally got it to work. It seems your TWRP pdf instruction step 5 is off. which caused me to have the error. it should be this:

*******Put a copy of your unique scatter and preloader file into the 1. FIRMWARE folder and rename the *.img file into recovery.img FROM 2.TWRP and move the recovery.img file into the 1. FIRMWARE FOLDER********

now I have it installed and running smoother than ever. Now the problem is when im in terminal emulator and run the command it comes to a russian language setup so im installing google translate to see if I can figure it out . Thank you for your instructions

Great catch, thank you! We have updated the instructions files in all the packages. Here is the TWRP guide that is now included: LINK. It covers the change of language from Russian as well.
 

Khan187

Member
Mar 15, 2021
20
1
Great catch, thank you! We have updated the instructions files in all the packages. Here is the TWRP guide that is now included: LINK. It covers the change of language from Russian as well.
The instructions should be for step 5. Put a copy of your unique scatter and preloader file in the 1. FIRMWARE FOLDER and from folder 2 TWRP take the recovery file and put in FOLDER 1. Firmware.

PS Im just trying to help as this is what worked for me.
Also what settings should I set the Viper on for better sound like the EQ settings? Also how can I update the MCU to 4.0?
 

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ExtremeMOD

Senior Member
Aug 14, 2020
805
189
41
London
extrememod.co.uk
The instructions should be for step 5. Put a copy of your unique scatter and preloader file in the 1. FIRMWARE FOLDER and from folder 2 TWRP take the recovery file and put in FOLDER 1. Firmware.

PS Im just trying to help as this is what worked for me.
Also what settings should I set the Viper on for better sound like the EQ settings? Also how can I update the MCU to 4.0?

Actually that is not the optimal way of doing this. You need to flash the firmware without replacing the original recovery.img file. Then start the head unit and make full factory reset and only after flash the TWRP file by itself.
 

lembi2001

Senior Member
Nov 29, 2010
107
17
Ashton
Hi all

Got a weird issue with my YT9216BJ stereo that I am hoping this mod will resolve.

The stereo randomly powers on and drains my battery and I don't understand why. The built in launcher is poor but I've installed my purchased version of Agama from a previous Android Head Unit and it works much better.

I have attached pictures of the stereo settings pages to see if this update is compatible or not

Thanks
 

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ExtremeMOD

Senior Member
Aug 14, 2020
805
189
41
London
extrememod.co.uk
Hi all

Got a weird issue with my YT9216BJ stereo that I am hoping this mod will resolve.

The stereo randomly powers on and drains my battery and I don't understand why. The built in launcher is poor but I've installed my purchased version of Agama from a previous Android Head Unit and it works much better.

I have attached pictures of the stereo settings pages to see if this update is compatible or not

Thanks

Your head unit is compatible with this mod. It will not solve your particular issue however. In order to solve it, you need to rewire it in your car. Simply put, connect your B+ and ACC cable to the ACC input in your car. This way your stereo will only power on when you start the car. With this mod, the startup time will go down considerably as well. Enjoy!
 
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lembi2001

Senior Member
Nov 29, 2010
107
17
Ashton
Your head unit is compatible with this mod. It will not solve your particular issue however. In order to solve it, you need to rewire it in your car. Simply put, connect your B+ and ACC cable to the ACC input in your car. This way your stereo will only power on when you start the car. With this mod, the startup time will go down considerably as well. Enjoy!

Thanks for the reply. I used the wiring harnesses that came with it and attached it to my existing cradle. I'm guessing then that the wiring harness needs modifying to fix the problem?

I'll probably wait until weekend to have a look at that properly then
 

ExtremeMOD

Senior Member
Aug 14, 2020
805
189
41
London
extrememod.co.uk
Thanks for the reply. I used the wiring harnesses that came with it and attached it to my existing cradle. I'm guessing then that the wiring harness needs modifying to fix the problem?

I'll probably wait until weekend to have a look at that properly then

Yes but all you need to do is to remove the B+ cable where it connects to the car socket and then twist it together with the ACC one.
 
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jrigga39

Member
Dec 20, 2014
11
0
For some reason, I cannot get my pc to recognize my HU to flash. Ive bought a new usb cable, ive installed the drivers twice as instructed, even downloaded microsoft update packs with driver updates. Nothing I do lets me flash my device. Im running 8227L 8.1.13 any help is appreciated.
 

Khan187

Member
Mar 15, 2021
20
1
For some reason, I cannot get my pc to recognize my HU to flash. Ive bought a new usb cable, ive installed the drivers twice as instructed, even downloaded microsoft update packs with driver updates. Nothing I do lets me flash my device. Im running 8227L 8.1.13 any help is appreciated.
Go into your headunit factory settings password 8888 and click on usb settings after that you will see an option to make usb into host or device. Click on device and than try with opening spf tool. (Also make sure you are using the 4 pin usb connector and not the 6 pin)
 

jrigga39

Member
Dec 20, 2014
11
0
Go into your headunit factory settings password 8888 and click on usb settings after that you will see an option to make usb into host or device. Click on device and than try with opening spf tool. (Also make sure you are using the 4 pin usb connector and not the 6 pin)
thanks for the reply,
ok i checked the host device, it was alrady set to device. and yeah my usb is 4pin. Is there anything else I should be doing first before this step? should it be in recovery mode or something, if so, how?
 

Rufusjr21

New member
Dec 2, 2015
3
0
Will this package work for mine ? I hate the factory software and want to upgrade it. Thank you in advance
 

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ExtremeMOD

Senior Member
Aug 14, 2020
805
189
41
London
extrememod.co.uk
This is the same version as mine and I have confirmed it does not work. @Rufusjr21 i'd advise reading through the forum thread first.

Actually he has a different unit (look at the XYAuto version on the System info screen, it has no "B" in it). This will work and it should work on your head unit as well. We have tested your head unit with our TWRP files and they worked fine. We can record a video of such unit to show proof. Try this file. It's what we have for the newest generation units.

Make sure to use your own scatter file that you have extracted when you made the backup.
 

earl00

Senior Member
Dec 8, 2007
94
5
Actually he has a different unit (look at the XYAuto version on the System info screen, it has no "B" in it). This will work and it should work on your head unit as well. We have tested your head unit with our TWRP files and they worked fine. We can record a video of such unit to show proof. Try this file. It's what we have for the newest generation units.

Make sure to use your own scatter file that you have extracted when you made the backup.
my version is exactly the same as seen in the attachments, not sure what "B" you are referring to, can't see the difference, although I may be blind. :) Tried all the recovery images including the latest one you've uploaded with my own scatter file., still just reboots into the main system, also in order to get the firmware loaded you must not flash bootimg which the instructions advise doing. I'm happy to video the recovery not working on my head unit.
 

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ExtremeMOD

Senior Member
Aug 14, 2020
805
189
41
London
extrememod.co.uk
my version is exactly the same as seen in the attachments, not sure what "B" you are referring to, can't see the difference, although I may be blind. :) Tried all the recovery images including the latest one you've uploaded with my own scatter file., still just reboots into the main system, also in order to get the firmware loaded you must not flash bootimg which the instructions advise doing. I'm happy to video the recovery not working on my head unit.

Sorry, must have confused you with another user. Can you please take a picture of your motherboard back and front?
 

earl00

Senior Member
Dec 8, 2007
94
5
Sorry, must have confused you with another user. Can you please take a picture of your motherboard back and front?
No problem. I believe it's the software related to the one in the screenshot from xyauto site.
 

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  • 1
    Could you please provide a link where can i buy a device that will be compatible with your MOD? (2GB ROM) thank you
  • 17
    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
    • Customization options
    20210805112900.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 guide works on the following 1Gb RAM and 2 Gb RAM units with fake Android 10 and Android 11 installed:

    - 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 #5
    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 I'll try to help you

    20210805091905.jpg 20210805091639.jpg 20210805112820.jpg 20210805091836.jpg

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

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

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

    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
    The links go to a '404' page.
    I did the first step as per the guide then did a factory reset. I then installed TWRP and rebooted then unit. Then I ran the 'reboot recovery' command in the terminal emulator and the unit rebooted, but it only shows the logo, some vertical lines on the bottom half of the screen, then a black screen and hangs there.

    I can still reboot normally and the unit will run.

    Separately, when resuming audio tracks after key-off, the audio is very choppy and unusable. Both bluetooth audio and the music app behave the same.

    To recover, I have to reset the unit and then the audio is ok.

    Also there's a very loud audio boom on start up and shutdown of the unit. This is not there in the stock firmware.View attachment 5409085

    Thank you for sharing these details. I'm afraid your head unit is not compatible with any of my software packages. If you haven't done so already, please revert back to factory firmware to avoid issues.
    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.
    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.