[Guide] How to flash a modded AMI UEFI BIOS

3 posts were merged into an existing topic: [GUIDE] Update CPU Microcode + Fix FIT Using UEFITool / Hex

@RedditorUser5928

Yes, you obviously used a not working AFUWIN version, because you haven’t read the related part of the start post.
Bad consequence for MeatWar and me: We both wasted our free time unnecessarily for you.
Don’t expect any further support from my side.

Yes,understand.
But CH341A programmer and Intel FPT tool are too complicated for me…
It looks like the road ends here and without flashed bios :disappointed_relieved:

ASUS bios mod on motherboards without USB BFB, options are AI Suite, CH341A, Intel FPT tool or AMI /GAN…and welcome to the mod world…what did you expected from trying modified files to be flashed.

Only flash option I can try is Afudos with usb key or Afuwin / GAN

Hi MeatWar.
I followed the instructions created by the oldguy user with the same H87 mobo but stopped at those last instructions. I can’t run afuwin64.exe in the command line windows 10.could you show me where and how to insert exactly please?
Thanks
Charles

Successfully done.Last question.
Where I can find the the right bios settings for NVMe ssd with pcie adapter installed .
Thanks
Charles

To read and learn: [HowTo] Get full NVMe support for all Systems with an AMI UEFI BIOS - NVMe Support for old Systems - Win-Raid Forum

A post was merged into an existing topic: [HowTo] Get full NVMe support for all Systems with an AMI UEFI BIOS

Hi, I was trying to use your guide, but the link to re creating the CAP file seems to be broken, and I seem to need that step to proceed?:

Only for ASUS BIOSes, whose capsule had been removed by extracting the “Body”, but shall be flashed by using the ASUS USB Flashback feature:
Don’t forget to re-insert the original capsule and to save the modded BIOS as *.CAP file!

Can you either point me to the correct place ,or just explain what needs doing, thanks in advance.

Edit by Fernando: Broken and misleading link within the quoted text removed

You… who…??? Use @username and that user will be notified.

Using the UEFI tool to extract (UEFItoolNA version) and replace (UEFI tool regular version) the bios region, by the mod one.

LongSoft/UEFITool: UEFI firmware image viewer and editor (github.com)

That’s Correct Fernando, just what I was trying to do.
This is a different link to that previously pointed to, but suggests an answer.
Seems I just rename the .rom file as specific name .cap file, and put it onto a USB stick…
so I can use USB flashback…
So far it fails… but there we go.

So, to be clearer. I downloaded the file for my motherboard, P8Z77-V-PRO-ASUS-2104.CAP
and the NvmExpressDxe_5.ffs file to add the NVMe capability.

downloaded UEFITool.exe and extracted the body, to get a rom file.

Downloaded and used the MMTool 4.50.0.23 to put the NVM into the rom file.

renamed the rom file Z77VP.CAP as per the document DE103_Z77_H77_Series_BIOS_Renaming.pdf

Dropped it onto a recently formatted small size USB stick, and put it into the flashback usb port.
Shutdown the computer, pressed the usb flashback, and waited? 4 maybe 5 flashes, then with a light on? for 10 mins or so, and nothing seemed to happen, so something failed.
Tried with a few usb sticks… no change…

No…after inserted the NVMe dxe driver, the mod rom is to replace the previous bios region you extracted with the UEFItool, again on the CAP file, then the file is renamed and USB BFB will work.

EDIT: Where did i mentioned MMtool for the bios region swapping operation on the CAP???.. i said UEFI tool, MMtool is only for the insertion of NVMe DXE

EXTRACTION from the AMI CAPSULE:

REPLACE with the mod file already with NVMe inserted:

Saving will now ask to rebuild and view the new file.

EDIT: “Within the CAP file, so the newly created file, is presumably the file to rename and then flash to the bios…”
Yes, now rename the CAP according Asus BFB and use it with it, thats it if the NVMe was correctly inserted upon the guide, follow the OS nstallation instructed also in the guide.

Oh OK…
so, after MMTool used to put NVM into the rom file…
How do you then replace the bios region in the cap file with this version?

Or, do you just edit the CAP file with the MMTool to put the Nvm driver directly into it?
In which case why use the UEFITool at all?

Thought I was following the instructions Ok before, now not sure at all.

EDIT:
OK, so use UEFItool to extract the Bios region only.

Your images do not show the AMI Aptio capsule level… again, maybe relevant.

edit the exported rgn file to add the NVMe driver.

and then you have an option to replace the bios region with this file? its greyed out for me, as per your first image?

I note you seem to be using 2 different version of UEFITool, is that relevant?
The version I have is NE alpha 60

I also note your file is a .BIN file not .CAP?

@MeatWar
EDIT 2:
OK, downloaded another version, following your version numbers, the latest is 0.26.0 and this does let me replace the bios, as you said…
Within the CAP file, so the newly created file, is presumably the file to rename and then flash to the bios…

@MeatWar
EDIT 3: Yep… That worked, I now have NVMe support in the Bios…
Now to setup the OS on device.
Thanks Very much for your help on this, much appreciated.

@potterpg
If you address your post to a certain Forum member, you should do it by using the @ feature of the Forum. Only this way the related person will get instantly notified about your post.

@Fernando
OK - thanks - didn’t know that one.

@Fernando
Just adding a thankyou to you Fernando, for making this possible!

@Fernando

Hi I read all the guide, I tried to use ezflash but it doesn’t work, I tried with Flashrom v1.2 Utilities but I got this error:

and with ami aptio i don’t understand if i should use afudos or afuefi

@acidburn87
You can use either the tool AFUDOS or AFUWin, both should be designed by AMI for Aptio IV BIOSes.
If you want to use AFUDOS, you have to boot off an USB stick running MSDOS or FreeDOS.
If you want to use AFUWIN or AFUWINx64, you can flash the BIOS from within the related 32/64bit Windows OS.
In both cases you should use the older version 3.05.04 of the tool (links are within the start post), because the newer ones do not support the " /GAN" command suffix.
You will have to flash the BIOS twice:

  1. The original BIOS as *.CAP file (with the capsule header) and
  2. the modded BIOS as *.ROM file (after having removed the capsule header).

For details please read >this< guide written by OldGuy (the link has been fixed by me within the star post).
Good luck!

@Fernando
Hello and thanks again for the reply, then with afudos I was able to write the bios in .cap without problems but when I go ahead and try to use the .rom file the /GAN command I get the error unknown command

EDIT:
I try the previous windows version using the /GAN command, I’ll let you know how it goes

EDIT 2:
I used the windows version and I succeeded windows started without problems thank you very much have a nice day

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