==== Preparation Section ====
1. Prepare an USB key with EFI shell boot file in FAT32 file system
2. Extract BIOS zip file into root folder of the USB key
3. Plug the USB key to the target board or system

==== Update Section ====
1. Boot up the target unit
2. F11 key at POST screen to choose boot from USB key
3. Switch path to your USB key by run command fs0:, the EFI shell will show Device mapping table of connected storage devices when it start, and the USB key will be recognized as “Removable Harddisk”.
4. Execute the file named Afu_Update.nsh, you may see following message during update process, just press y to continue
	\\  WARNING !! ROM file information does not match system BIOS.
	\\  Do you continue to flash ? (Y/N)