1. Decompress the zip files to USB pen drive (FAT32) root directory
2. Insert USB pen drive into USB port
3. Turn on the system 
4. Press "Delete" key on the keyboard to get into the BIOS setup.
5. Select item "Launch EFI Shell from filesystem device" in "Save & Exit" page.
6. Input "fs0:" (or "fs1:" / "fs2:") and the "Enter" to switch to the path of USB pen drive.
7. Execute the flash script "flash.nsh"
