BIOS update failed now doesn't recognize hardware or boot Win 10

Having lots of issues with a new Gigabyte GA-AB350-Gaming motherboard. After swapping out the old board I had trouble booting to Windows 10-64bit. I did manage to update my Windows license by calling MS but have other issues. My new CPU is a AMD Ryzen 7 1700. The BIOS was version F4. It was suggested a BIOS update to F5 was needed. I did the update within BIOS & when it got to about 90% finished it suddenly said it would reboot in 10 seconds. After reboot I was briefly able to use the mouse & go back into BIOS & noticed it did not update to F5. The mouse suddenly froze & keyboard doesn't work either.Now, it apparently does not recognize any hardware (USB, where the keyboard & mouse are plugged into) & boots to the blue Windows screen but no further. Suggestions, please HELP!

bobkn said:

The GA-AB350 has a dual BIOS, which is supposed to protect against bad BIOS updates. However, I think that its functioning is automatic; I don't spot any way of manually causing the use of the backup BIOS.

I had a similar problem with one of my first UEFI motherboards. Automatic dual BIOS, but the backup BIOS never came into play. II ended up returning the board.

No guarantees that this will help, but have you tried clearing the CMOS? There's a jumper for that, or you can do it by removing the CMOS battery for a minute. See the manual. (Downloadable as a PDF, if you don't have a paper copy.)

If that doesn't work, you may have to repair or replace the board. The BIOS EEPROM chips look like they are soldered to the board, so you can't simply replace them.

Good luck.

Thanks,

I pulled the battery out of the MB & waited about 20 minutes. Then, with battery replaced, power up & all booted to a Windows repair screen but nothing happened. I rebooted again. This time a window flashed that said BIOS was reset. I checked BIOS again but couldn't use the mouse & eventually rebooted again, this time I finally got into Windows 10 desktop.

Apparently the original F4 BIOS is still in place. I'm at a loss now how to update to F5. Gigabyte offers an App Center & fails to install which might make life easier.

I'm trying "Q-Flash" next. Pray for me (I need all the help I can get!).

Q-Flash didn't work. It locked at 16% but no more. Took battery out again to hopefully reset again. Bummer!

Should you try the BIOS flash again with q-flash strip the unit down to essentials. Just enough memory to boot, no drives.

Then load defaults and q-flash to next level. Ensure your power is nice and stable.

Caledon Ken said:

Then load defaults

This is the most important step in flashing a BIOS that many folks neglect to do.
Very important to reset all defaults in the old BIOS and restart before attempting a flash.

The flash procedure from within the BIOS is normally the safest procedure. But you can get a bad download from time to time so always delete the old BIOS upgrade download and get a fresh one.

Thanks for the advice. It updated but still had issues. I called the store this morning & the board is being returned for exchange. Bummer!

Yes, but better now before its all loaded and the warranty has expired. That is a BUMMER !!

Ken