Plug your USB drive into your PC. Right-click it, select Format , choose FAT32 , and click start.
To ensure I provide the most helpful next steps, could you tell me a bit more about what your head unit is showing? Please share your MCU version from your system settings if you can access it so we can identify the exact software variant you need. Share public link uis8141e firmware
Download a specialized extraction tool like FYTBACKUP_SC7731E_UIS8141E.rar from recognized dev communities such as the 4PDA UIS8141E Forum Hub . Plug your USB drive into your PC