This should work on any Gigabyte motherboard that supports Q-Flash Plus. You can update the BIOS without the CPU installed with this method.
In this video, we show how to update the BIOS on a Gigabyte Z690 Aorus Elite AX DDR4 using the Q-Flash Plus technology. Some Gigabyte Z690 boards won’t boot into an M.2 without an update, like the one we are using here, this allows you to update it and boot into an M.2 with ease after you build your PC. This should work for most Gigabyte motherboards including Z790, Z690, B660, H610, Z170, X299, X570, B450, X670 etc. Pretty much any Intel or AMD motherboard that supports Q Flash Plus. Just be sure that you download the correct version of the BIOS for your specific board.
Find your motherboard BIOS here:
Some Gigabyte boards that support Q Flash Plus include:
GIGABYTE Z790 AORUS ELITE AX
GIGABYTE Z790 AORUS MASTER LGA 1700 Intel Z790 EATX
GIGABYTE Z790 UD AC LGA 1700 Intel Z790 ATX Motherboard with DDR5
GIGABYTE Z790 AERO G LGA 1700 Intel Z790 ATX Motherboard with DDR5
GIGABYTE B660M GAMING X AX DDR4 (rev. 1.1) Intel B660 LGA 1700 M-ATX
GIGABYTE Z690 AORUS ELITE AX LGA 1700 Intel Z690 ATX
GIGABYTE Z690 AORUS ULTRA LGA 1700 Intel Z690 ATX
GIGABYTE Z690 UD DDR4 LGA 1700 Intel Z690 ATX
GIGABYTE Z490 AORUS Master
GIGABYTE X570 AORUS Elite
GIGABYTE B660M DS3H DDR4
GIGABYTE B550I AORUS PRO AX