The Allwinner T5 is used by dozens of manufacturers (e.g., Eonon, Xtrons, Joying, Atoto, or generic Chinese brands). You need the or "About Device" information.
While holding the reset button, connect the device to your PC via the USB cable. Confirm Update allwinner t5 firmware update full
This is the most reliable method for a "full" firmware refresh. Check Current Version Car Settings > System Settings > About Device to note your current app and MCU versions. Prepare the USB Drive update.zip file in the root directory of your USB drive. The Allwinner T5 is used by dozens of manufacturers (e
: Never use generic "T5" firmware without verifying it matches your specific head unit (e.g., Joying, T'Eyes, or generic Chinese models). Flashing incorrect firmware can permanently brick your device. allwinner t5 firmware update full