If your unit is stuck on the boot logo or exhibits a black screen, you must push the firmware directly to the motherboard from a computer using an SP Flash Tool connection.
You will likely need to re-map these in the "Wheel Study" app after the update. Conclusion
: The touchscreen does not respond after the firmware update, or touch input is misaligned. yt9213aj firmware update patched
With that information, I can produce a including:
. As one developer warns: “Do not blindly flash this device without knowing what you are doing. While the device is hard to brick in general, it is very easy for someone new to brick it by flashing the wrong partitions”. If your unit is stuck on the boot
Once you have a scatter file, perform a full readback backup. Then, import the backup back to your device to verify it works before flashing any patched firmware.
Proceed at your own risk. This article is for educational purposes. Always verify your screen resolution and MCU version before proceeding. With that information, I can produce a including:
If you're having trouble deciding which update to use, I can help you:
: A key technique involves replacing the “head” of the Chinese updater-script with a differently structured updater-script. This enables OTA updates designed for one unit model to be adapted for another. As developers explain, “It isn’t difficult to adapt the ota update, just replace the head of the Chinese updater-script into the other updater-script”.