Flash method in EFI Shell:
1. copy xxxx.bin and AfuEfix64.efi to root directory.
2. AfuEfix64 xxxxx.bin /p /b /n /k /l /x
3. if you want to flash ME, put jumper on board, AfuEfix64 xxxxx.bin /p /b /n /k /l /x /me
4. BIOS not support downgrade flash action due to security