Please use Q-flash to update the main bios.
1. Bios_SW set to 2 (boot from backup bios) and SB set to 2 (single bios) to boot up the system.
2. Press del to bios setup screen
3. Switch BIOS_SW to 1
4. Press F8 Qflash to update bios.
5. The main bios is updated.

Tags: Gigabyte, BIOS