BIOS Patching not working for supported motherboard

[SakuraJensen]

System

• Motherboard: Aorus X399 Gaming 7 WiFi
• BIOS Version: F13d (Mobo / Resize bar natively in BIOS since f13a/unofficial f12) / 90.02.30.40.1B (GPU)
• GPU: EVGA 2080 Ti XC Gaming 11G
• [Y] CSM is turned off. Make sure to confirm this in the BIOS and not with GPU-Z or similar since it can be inaccurate
• [Y] 4G decoding is enabled. Make sure to confirm this in the BIOS and not with GPU-Z or similar since it can be inaccurate
• [N] UEFIPatch is applied (see Using UEFIPatch for more information). On some motherboards DSDT Patching is also needed
• [Y] I have read Common issues (and fixes)

Description

I've tried to patch the BIOS with MMTool and UEFITool. I've tried to recommended and latest versions of the tools. The patched BIOS refuses to flash after failing verification in both UEFI and in at_BIOS. Using The latest MMTool I was able to get the patched file to read in UEFI but that's as far as I've gotten.

I've included the original and patched bios files. bios.zip

Maybe I'm doing something wrong?

[karfelren]

the patch file has nothing to do with your bios, you just stuck on flashing the bios section

[SakuraJensen]

the patch file has nothing to do with your bios, you just stuck on flashing the bios section

The patch literally goes directly into my BIOS. Hence, the entire point of putting the .ffs file in. Are you sure you read the instructions?

The problem is also flashing, obviously it's not passing the checksum verification, even when I can get one of the tools to export the file correctly and not one that's 0KB.

Really, I'm just looking for input from @terminatorul seeing as they've validated this motherboard as working before.

[SakuraJensen]

Actually found some information on this after the fact:

https://winraid.level1techs.com/t/flashing-gigabyte-while-avoiding-invalid-bios-image/31185

I was able to flash the bios using the method in the link, however, I think it's booting from the backup BIOS. because it's POSTing extremely slow. The terminal is showing the DXE driver is still unloaded as well.

Resize bar is enabled in the BIOS according to my two options Off and Auto. It's on Auto.

[karfelren]

sorry for stepping in then and good luck

[SakuraJensen]

Got it.

Bios F13a/d introduced the verification for bios files. But F12 did not. Specifically the F12 internal version that had ReBAR enabled (located here: https://winraid.level1techs.com/t/request-bios-for-gigabyte-x399-aorus-gaming-7-resizable-bar/37877)

I was able to downgrade the bios to F12 using the built in BIOSBACKUP folder on the mobo. and then flash my modified F13d bios over it. YMMV as It wouldn't let me downgrade to F12 with the file i had on my drive. Just the BIOSBACKUP folder under "Unknown Devices".

The efiflash tool did flash, but I don't think what it flashed was booting and it was falling back to my other BIOS.