Backup BIOS

[P.J]

How to flash Backup BIOS? and how to flash Main BIOS using Backup BIOS?

My motherboard is GA-B75M-D3V (Dual UEFI BIOS)

[TFisher]

BIOS Recover Method Via Manually Invoking BACKUP BIOS Auto-Recovery
 Using Power Supply - On/Off Switch

 It is possible to make the BIOS Auto-Recovery kick in (Dual BIOS) and re-flash the MAIN BIOS with the contents of the BACKUP BIOS.
 
This is a simple and easy method for anyone to try before having to resort to other more difficult methods, or a RMA.
 
1. Shut off the power supply using the switch on the back of the PSU, wait 10-15 seconds.
 2. Press and hold the case Power On swtich, then while still holding turn on the power supply from the switch on the rear.
 3. Still holding the case power on switch, the board will start, once it does release the case power on switch and shut off the power supply via the switch on the read of the unit. (Do the latter two parts as quickly as you can once the board starts)
 4. The board will shut down.
 5. Turn the power supply back on using the switch on the rear of the unit.
 6. Turn on the motherboard by pressing the case power on button.
 
Once the board starts this time you should see the Gigabyte splash screen, or POST page, then the Auto-Recovery from Dual BIOS will kick in. You will see a checksum error, and then recovery from BACKUP BIOS will begin. Once it is done reboot your machine and enter the BIOS and load optimized defaults then save/apply/reboot back to BIOS.

Now you are done, and will be using whatever BIOS was in your BACKUP BIOS, From there you can attempt whatever you were previously trying, or update your BIOS to the latest version.

[P.J]

And how to flash Backup BIOS? (using Main BIOS)

[TFisher]

And how to flash Backup BIOS? (using Main BIOS)

Quoted from Dark Mantis.

If you have a PS2 keyboarrd connect that instead of the USB version as it is more reliable.

From a cold start with the power to the machine switched off press the power button and then enter the BIOS by pressing Del.
 Then when you get to the main screen press F9.
 
This will bring up an extra screen which will display more information about the two BIOS versions. Assuming they are different exit the BIOS and shutdown.

Again press the power button and this time press Alt + F12 where you would normally use the Del key to enter the BIOS. You will find that then your monitor will turn black and you will see:

Press [Enter] to start copying main BIOS to backup BIOS...

When you press Enter more text will appear saying:

Writing BIOS image.... xxxKb OK

Once completed more text will show:

BIOS successfully recovered! Power off or reset system!

Do as it says. Both Main and Backup BIOS chips now store the same BIOS version. You can now reboot as normal.

[P.J]

Thank you, will try tomorrow 

[P.J]

Alt + F10 did the job but only with PS/2 adapter =/

[totorogumi]

hi

i am wanting to flash my bios back to the FE version which is on my backup bios, i cant get the method to work is there another easy way to get the bios to corrupt so it will auto copy over?