Qflash plus can update a BIOS even when a PC can't boot
If your PC won't boot or you can't update the BIOS on your PC through other methods, you can try using the Q-Flash Plus feature on your Gigabyte motherboard. This feature is included on some newer and more high spec Gigabyte motherboards.
Firstly, you should create your flash USB drive. Choose a low capacity USB drive (32GB or less), usually the older type drives are better, and insert it into your PCs USB 3.0 port. Right click the drive in file manager and choose 'Format' from the menu. Ensure you choose the file system type of FAT-32. You can check the 'Quick format' box to save time and leave the other settings as standard.
Once the drive is formatted, copy your new BIOS file to the drive and rename it as GIGABYTE.bin noting the use of capital letters and small letters.
You can make sure this is the correct BIOS for your motherboard by checking your current motherboard version and model before updating it. Simply open a command prompt and copy in the following command:
wmic baseboard get product,manufacturer, version,serialnumber
On pressing Enter, the details of your motherboard will be displayed.
Now insert the USB drive into the Q-Flash Plus USB port at the rear of the target PC. This is sometimes coloured white or it will be noted in small letters next to the port to say 'BIOS' or 'QFlash'. With the PC switched off but with power to the power supply of the PC and the power supply turned on at the rear, you should now press the 'Q-Flash Plus' button on your PC motherboard. Sometimes this is on the rear IO plate and sometimes it is inside the PC on the main motherboard. Hold the button down for a couple of seconds.
The Q-Flash plus LED will flash to show the process has begun and it should continue to slowly flash throughout the flash process. The PC must not be touched while the flash process is activated. Once complete, the PC will reboot and you can remove the USB from the rear.
If the flash process does not start, here are some things to check:
1) Try turning the power off to the PC at the mains and fully discharging the residual power from the PSU by pressing the power button on the front of the PC. Then turn the power back on at the main but don't press the power button to turn the PC on, just press the Q-Flash Plus button.
2) Check that the BIOS has been renamed correctly to GIGABYTE.bin.
3) Check it is the correct BIOS file for your motherboard.
4) Try a different USB drive. The process is quite fussy about the type of USB used. Its not uncommon to have to try 3 or 4 drives before finding a compatible one.