While searching for "android yt9216bj00012v001 patched" yields many pre-made images, security is a concern. Chinese head units are known to contain backdoors. By downloading a patch from a stranger, you are granting them root access to your car's microphone and location.
The Expert Alternative: Use the "patch" as a template but run Magisk patching yourself.
This leaves the system partition untouched (clean) but gives you root access and dm-verity disable.
Once booted, you aren't done. You must configure the patch kernel. android yt9216bj00012v001 patched
This string is not random; it is a specific identifier for the firmware version of the MCU (the part of the radio that handles audio, radio, Bluetooth, and power management).
Why does this matter?
You cannot flash just any MCU update. If your hardware expects yt9216 and you flash yt9218 or mtcbt, you will likely "brick" the MCU. This results in a unit that turns on but has no sound, no touchscreen response, or no Bluetooth.
The first boot after patching takes 5-7 minutes. Do not touch the screen. You will see a "Android is starting... Optimizing app 1 of 48." This leaves the system partition untouched (clean) but
If it stays stuck on the boot logo for more than 15 minutes, you have bricked it. You will need to short the CLK and GND pins on the motherboard to force mask ROM mode (out of scope for this guide).
Step 1: Backup (Crucial)
Open the stock ROM with SP Flash Tool and click "Read Back" immediately. Save your original NVRAM and boot partitions. If you lose your IMEI or Bluetooth MAC address, you cannot get them back easily.
Step 2: Prepare the Agent
Load the MT8163_Android_scatter.txt file included in the patched folder. This tells the flasher where to put the data. Why does this matter
Step 3: The Format All + Download Debate
Step 4: Connect Power off the head unit completely (disconnect the car battery or the main harness). Connect the USB A-to-A cable from your PC to the unit's designated "update" USB port. Hold the "Reset" button (tiny hole on the front face) and plug in power. The PC will detect "MTK USB Port."
Step 5: Execute Click "Download." The red bar will fill, followed by a purple bar. In 3 minutes, a green check mark appears. Disconnect, reassemble, and boot.
| Feature | Stock Firmware | Patched Firmware | | :--- | :--- | :--- | | Launcher | Locked, ugly grid | Modded UI, Car Launcher Pro pre-integrated | | Root Access | Usually blocked | Full Magisk/KingoRoot patched | | Audio Focus | Broken | Fixed (True ducking) | | DSP Settings | Hidden | Unlocked with 32-band EQ | | Background Apps | Killed after 5 min | Whitelist patched (Waze/Torque stay alive) | | Boot Animation | Generic android | Customizable or removed (5-second boot) |
If you proceed, follow these steps carefully: