1. Flash Bios
   Run flash.bat in Windows command or Power shell with admin level.
   Or run flash.nsh in shell
   Note: Need to plug adapter and the Battery capacity must be greater than 30% when flash bios.

2. Recovery Bios
   Please put the BIOS.rom file in the root directory of the U disk, then press the Ctrl+Home and power on.
   Note: Need to plug adapter and the Battery capacity must be greater than 30% when flash bios.