[Guide] How to flash a modded AMI UEFI BIOS

[Saki1015]

Thank your very much @MeatWar and @Fernando.

Tips that can be helpful:

1. If you got message in AFUDOS after /GAN command like:
   “Unknown command or option: <NAME OF THE YOUR BIOS>.rom1 - Error: …”
   Try shortening name of your .rom and run command again.
   Example:H61M-C-0511NVME.rom to H61M.rom
2. If you want to run AFUWIN, but you dont have OS, try install Windows To Go on USB with rufus, and then run AFUWIN from there.

[Fernando]

@Saki1015
Thank you very much for your additional tips in case of any AFUDOS or AFUWIN error message. Since your advices may help other affected users, but are not easy to find, I have customized the related part of my guide (initial post of this thread).

[KingRVK]

Hello Fernando, I have an Asus a520m, I would like to activate PBO on it, I have already checked the presence of it through the AMIBCP program, but it is hidden, is it possible to flash a modified bios on this board? Aptio V in this case.

[Fernando]

@KingRVK
Welcome to the Win-Raid Forum!

@KingRVK

is it possible to flash a modified bios on this board?

Since your mainboard supports the USB Flashback feature, it should be possible.
Good luck!

[KingRVK]

Thanks for the reply, I managed to release the PBO in the XFR Enhancement menu, but I feel like there are a lot of options missing, I tried to release the AMD Overclock menu, but without success, in addition there is a PBO tab in Ai Tweaker that I also couldn’t release, could you help me if it’s not too much trouble for you?

[Fernando]

@KingRVK
This is a thread about how to flash a modded BIOS and not about how to unlock certain BIOS options of a certain mainboard.
Please post your questions within a separate thread of the „BIOS Modding Requests“ Forum Category.

[whothatmofo]

guys i tired using the flastool within freedos but it did not find the epp rom.

is there an updated file i can retry, im trying to flash a modded asrock taichi 870 bios