: Never use firmware meant for a different model (e.g., YT9213 or YT9218) unless you are certain of compatibility, as screen sizes and button configurations vary.
: Ensuring the Microcontroller Unit (MCU) correctly handles vehicle-specific functions like steering wheel controls and climate display. The Update Process
To install this specific firmware version, follow these general steps found on XYAuto tutorial resources: Use a USB drive formatted to FAT32 .
Resolves "missing app" issues where standard Android applications would disappear after a factory reset or power cycle. Update Procedure (USB Method)
Improved; fixes random restarts common in older v001 variants.