[Android Head-Units] ExtremeMOD:
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

Following our previous Super MOD guide, we have now completed a new project, this time on a newer YT9216BJ head unit running the Android 6 API23 operating system (fake Android 8.1, 9.0 and 9.1).

If your head unit is Android 8 API 27 (fake Android 10 or 11), proceed to this guide instead.

This guide is for YT9216BJ units with 1 Gb RAM and 16Gb flash with no physical buttons*.

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

View attachment 5400721

Do not use this package if your unit is "HIFI" or has a separate radio chip installed (A or NXP series)​

!! TAKE A PICTURE OF YOUR SYSTEM INFO AND

KERNEL VERSION

BEFORE DOING ANYTHING TO YOUR HEAD UNIT !!​

View attachment 5360985

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 mod only works on units

with screen resolution of 1024x600 px.

It will not work on Tesla-style units<<<

The Software Package contains:​

Custom Android 6 firmware for YT9216BJ

ROOT (SuperSU)

TWRP Recovery

Viper4Android / Viper4A / ViperFX

Custom UI (Car Launcher)

Custom Boot Animation

View attachment 5360979 View attachment 5360987. View attachment 5360991. View attachment 5360993. View attachment 5360997

!! ALWAYS BACKUP YOUR UNIT BEFORE MAKING ANY CHANGES TO IT!!​

DOWNLOAD #4

ExtremeMOD Software Package & Drivers - YT9216BJ

STEP-BY-STEP GUIDE (upgrading from working stock firmware):

DO NOT SKIP ANY STEPS, AND INSTALL EVERYTHING IN THE CORRECT ORDER. STEPS 5 AND 6 ARE MOST CRITICAL.

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

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

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

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

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

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:

DO NOT SKIP ANY STEPS, AND INSTALL EVERYTHING IN THE CORRECT ORDER.

It's highly recommended to do these upgrades with your unit connected on your desktop, rather than in the car. Follow this post on how to do that.

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)

Watch this video on Test Point recovery

Import back your memory dump. This is how.

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:

Share the pictures of your System Info and Kernel in this thread and I'll try to help you

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

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

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

Enjoy!​

[V4A][VIPER4ANDROID][ViperFX][ROOT][TWRP][8227L][YT9216BJ]