[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 any of these packages you will greatly improve:

Stability

Speed

User Interface

Sound tweaking options

Customization options

We wanted to share these all-in-one software packages with you, that we put together using various sources as well as our own modifications for Chinese Android Head units with

1Gb RAM and 16Gb FLASH

drive, no physical buttons,

with screen resolution of 1024x600 px.

(It will not work on Tesla-style units):

YT9213AJ (with Audio Chip types: TDA, CSC or SCS)

View attachment 5384223 View attachment 5277861​

YT9216B & YT9217B (same package)​

View attachment 5277863 View attachment 5345123

YT9218CH​

View attachment 5420743 View attachment 5420737

Disclaimer

We 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.

The Software Packages contain:​

YT9213AJ custom firmware

YT9216B/YT9217B custom firmware with split-screen option

YT9218CH custom firmware

ROOT (SuperSU)

TWRP Recovery

Viper4Android / Viper4A / ViperFX

Custom UI (Car Launcher)

Custom Boot Animation

!! TAKE A PICTURE OF YOUR SYSTEM INFO AND

KERNEL VERSION

BEFORE DOING ANYTHING TO YOUR HEAD UNIT !!​

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

View attachment 5412271 View attachment 5412273 View attachment 5412275

DOWNLOAD #1

YT9213AJ (with audio chip) supermod package & drivers

DOWNLOAD #2

YT9216B & YT9217B supermod package and drivers

DOWNLOAD #3

YT9218CH supermod package and drivers

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. Video Guide

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

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IF YOUR HEAD UNIT HAS 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 5400715

** 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 in our forum signature​

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

[9213AJ][YT9213AJ][V4A][VIPER4ANDROID][ViperFX][ROOT][TWRP][8227L][YT9216B]