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PSA: Gigabyte F20B BIOS changes

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Joined
Jan 10, 2018
Messages
21
Motherboard
GA-Z170X-UD3
CPU
Core i7-6700K
Graphics
GT 730
Mac
  1. Mac Pro
Had to go back to F6. Thanks to hugheba for this:
I was able to downgrade back to a BIOS version previous to F20.

I use the FTP Z170 Tool for DOS from https://www.mediafire.com/?p66jhts7cfi26y8

Then I...

1. Formatted a USB drive to DOS bootable with Rufus
2. Copied the contents of the zip above into the root of the USB drive overwriting the AUTOEXEC.bat
3. Downloaded the the BIOS I wanted to downgrade to from Gigabyte.us site
4. Move the BIOS binary to the root of the USB and rename it "bios.bin"
5. Boot the machine from the USB drive and it will automatically overwrite the BIOS to the desired version.
6. Ctrl-Alt-Delete once it says it's done

** Be sure to copy down the MAC address of your Intel NIC as it will be overwritten and you'll have to change it back once you're back up and running.
It was harrowing as it stalled at a flashing cursor and I had to shut down after about half an hour. Regardless, it worked so... back to 400+ boot options :/ Lol!
 
Joined
Dec 21, 2013
Messages
20
Motherboard
Gigabyte GA-Z170X-UD3 Ultra
CPU
i7-6700K
Graphics
RX 580
Mac
  1. MacBook
  2. MacBook Pro
I had a similar issue and Downloaded again using chrome or Firefox as suggested. Also a LaN connection is preferred. It is probably corrupted, it just takes one 0 to become a 1.

I've tried a couple of different BIOSes since: 20, 22, 23e. I'll try to download 23e again, but I think my next step after this would be to try downgrading to an older BIOS -- probably F4.
 
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