For AMD chipsets I don't know of any - only FPT (Flash Programming Tool) for Intel chipsets.

Is this tool able to downgrade ME on a gigabyte motherboard?
because my z270x gaming k5 is locked at me 11.8

@hasandoel2 Yep, it sure can.

Zitat von chinobino im Beitrag #18

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@hasandoel2 Yep, it sure can.

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@hasandoel2 No, just use;

efiflash bios.rom

Use the modified version of efiflash.

The /x command only needs to be used with the original version of efiflash, the modified version has protections removed.

Once you know that the modified BIOS works 100% then you can use the /db switch and flash both main and backup BIOS.

thank you,,,

soon reflash my z270

Good luck! :D

Can this tool be used to also dump the backup bios?
I've used fpt in the past to do an upgrade and mac adress was lost, possible some other values like hardware uuid.
I'm looking for a way to dumb the full content of the backup bios without any external programmer.

@graphine - flash backup to main, then dump main and you will have all that, use PS/2 keyboard if possible (others, and USB3 may not work), press CTRL+F10 on startup (many times as it boots, like you were trying to enter BIOS).
If you do not get screen to flash backup to main, then reboot and keep trying. I Hold down ALT or CTRL then spam the other key
ALT+F10 flashes main to backup
CTRL+F10 flashes backup to main

If you end up at screen with option you do not want, don't hit OK, just reboot and do the other way around.
On older boards, like Z68 and before, it's F12 + ALT/CTRL, this also does something on UEFI BIOS too, but I forget what happens with CCTRL/ALT+F12 on UEFI

UUID is not used in Gigabyte BIOS, only MAC ID and you can get that off sticker on the LAN Port.

EFIFlash may backup both via EFIFlash backup.bin /S /DB
Or maybe just /SB? I am not sure, I will test now

* Edit - no luck, with /S /DB, or /SB or /SD or /SDB or /S /DB or /DB /S
Seems like not possible, you will have to use above ALT/CTRL method, or just fix main BIOS MAC ID manually.

Zitat von Lost_N_BIOS im Beitrag #24

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@graphine - flash backup to main, then dump main and you will have all that, use PS/2 keyboard if possible (others, and USB3 may not work), press CTRL+F10 on startup (many times as it boots, like you were trying to enter BIOS).
If you do not get screen to flash backup to main, then reboot and keep trying. I Hold down ALT or CTRL then spam the other key
ALT+F10 flashes main to backup
CTRL+F10 flashes backup to main

If you end up at screen with option you do not want, don't hit OK, just reboot and do the other way around.
On older boards, like Z68 and before, it's F12 + ALT/CTRL, this also does something on UEFI BIOS too, but I forget what happens with CCTRL/ALT+F12 on UEFI

UUID is not used in Gigabyte BIOS, only MAC ID and you can get that off sticker on the LAN Port.

EFIFlash may backup both via EFIFlash backup.bin /S /DB
Or maybe just /SB? I am not sure, I will test now

* Edit - no luck, with /S /DB, or /SB or /SD or /SDB or /S /DB or /DB /S
Seems like not possible, you will have to use above ALT/CTRL method, or just fix main BIOS MAC ID manually.

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Yes, USB 2.0 works, but it's hard to do, MUCH easier with PS/2
Yes, I just mentioned in the other thread MAC ID is fixed in BIOS you attached there

Flashing backup to main will flash entire backup to main, all contents. GbE is same in both and MAC ID will be there in backup too, unless you flashed empty GbE to backup previously

I didn't intentionally flash backup bios until now, only if it did it automatically.

I was trying to understand how things were when the board was new and what got messed up when I flashed with FPT.
Original bios contained gbe region mac id -> downloaded bios contained the generic 88 one.
Flashing bios normally will not flash gbe region, flashing with FPT replaced everything (to allow downgrade from F20 TO F6).

At some moment when using qflash after a bad mod bios i saw updating backup bios. This could have replaced everything on the backup bios as well. But since the only ID is mac it was easy to fix.

For future boards I will first backup both bios chips, maybe with SOIC 8-Pin clamp since no software can currently dump both chips.

Automatic one would wipe out backup MAC ID, if your main BIOS had blank MAC ID (88 88 88 88 87 88) << That's the only thing that would have been messed up by flashing stock Gigabyte BIOS with FPT, and sometimes MAC ID is stored in GbE twice too, you'd have to check that in your backup flashed over to main to see if it's in your GbE twice by default

FPT only flashes GbE if you tell it to flash GbE (ie use -gbe switch), or if you flash entire BIOS all regions without a switch (FPTw.exe -f biosfile.bin)
If you are just flashing mod BIOS, and you KNOW you dont need to reflash modified FD or ME in there, and you want to use FPT, then this is the command you should use >> FPTw.exe -bios -f filename.bin
When doing this with FPT, best to backup first, then edit, then reflash >> FPTw.exe -bios -d backup.bin

For your board though, all you have to do is edit that one byte (at 0x7D05EFh >> Edit 01 >> To 00) and then you can Qflash mod BIOS

Could this be used on Gigabyte Z87MX-D3H which is an APTIO IV motherboard?
Thank you!
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Original MAC adress could be preserved when you flash with FPT by -SAVEMAC argument.

@nikoZ I don't have any Z87 Gigabyte board to test with so I don't know. You could try the unmodified version first with a stock BIOS and see if you get any error messages. With Z87 being Aptio IV it might just refuse to work at all.