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#16 RE: How to circumvent the "Security verification" while flashing a modded AMI UEFI BIOS by Florin9doi 01.01.2014 21:52

You dont need to use pmpatch. You must do this:

1. backup: afuwinx64 extracted-bios.bin /o

2. apply the changes to extracted-bios.bin file. Eg: change the microcode
3. apply: afuwinx64 extracted-bios.bin /gan

#17 RE: How to circumvent the "Security verification" while flashing a modded AMI UEFI BIOS by Zardoc 02.01.2014 00:17

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HI Florin9doi,

The instructions that you are giving are confusing to me because I have never tweaked a bios. I have a .CAP bios not a BIN. Are you talking about modifying with a command line?
Man , 7 years as an MVP and I don't understand BIOS tweaking .

Thanks for your patience.

#18 RE: How to circumvent the "Security verification" while flashing a modded AMI UEFI BIOS by saglamtimur 02.01.2014 00:25

At first step you backup the current bios. So the file will be created with the given name of your choice. I prefer .rom extension for example. So do not bother for the file name.

#19 RE: How to circumvent the "Security verification" while flashing a modded AMI UEFI BIOS by CodeRush 03.01.2014 13:05

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Sorry I haven't started a topic about that method earlier, as I have planned like 2 weeks ago. Will do it ASAP.
Credit for finding this misterious undocumented /GAN key goes to nexus76@MDL.
This dump/modify/flash method was tested on variety of boards, but there are reports, that sometimes it doesn't changes anything (BIOS remains untouched after "successful" flashing attempt), and in rare cases it can also brick the board, so please try it as a last resort and on your own risk.

#20 RE: How to circumvent the "Security verification" while flashing a modded AMI UEFI BIOS by saglamtimur 03.01.2014 14:32

Zitat von CodeRush im Beitrag #19

This dump/modify/flash method was tested on variety of boards, but there are reports, that sometimes it doesn't changes anything (BIOS remains untouched after "successful" flashing attempt), and in rare cases it can also brick the board, so please try it as a last resort and on your own risk.


Do you mean /GAN option causes those problems? Actually I have never used /GAN option but regular backup-mod-flash with afudos without problem. I believe you don't need /GAN option if you use backup-mod-flash method.

#21 RE: How to circumvent the "Security verification" while flashing a modded AMI UEFI BIOS by CodeRush 03.01.2014 14:51

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/GAN is not needed only on boards that have no SMI and BIOS locks, which are very rare now.
AFU is not as reliable as Intel FPT or flashrom, but it's the only flasher that can bypass security verification issues on modern AMI Aptio-based boards.

#22 RE: How to circumvent the "Security verification" while flashing a modded AMI UEFI BIOS by Zardoc 03.01.2014 19:24

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Hi CodeRush,

I'm really confused.

Is it possible to have the bios that Virtualfred modded (Post #4) to load without security warning? I tried to mod using the command line PMPatch Z87A.CAP Z87APATCHED.C
AP

#23 RE: How to circumvent the "Security verification" while flashing a modded AMI UEFI BIOS by Zardoc 06.01.2014 16:51

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So it seems that the biggest issue with modding certain .cap files is the Security Verification or Validation failed problem

Well, I hope that someone can get a functionnal tool to fix this.

#24 RE: How to circumvent the "Security verification" while flashing a modded AMI UEFI BIOS by Fernando 06.01.2014 17:14

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Zitat von Zardoc im Beitrag #23
So it seems that the biggest issue with modding certain .cap files is the Security Verification or Validation failed problem
Well, I hope that someone can get a functionnal tool to fix this.
Please read again, what Florin9doi has written within the post #14. This method should work for your BIOS.
Note:
There is an undocumented afudos command " /gan", which bypasses the Security Verification while flashing a modded capsuled BIOSes.

Zitat von Zardoc
The instructions that you are giving are confusing to me because I have never tweaked a bios. I have a .CAP bios not a BIN.

You should just rename the BIOS file to bios.bin.
By the way: This is exactly the BIOS name, when you have let the UBU tool do the modding.

#25 RE: How to circumvent the "Security verification" while flashing a modded AMI UEFI BIOS by Zardoc 06.01.2014 18:41

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Hi Fernando,

VirtualFred did remod with tool and Security Verification or Validation failed was still showing.

#26 RE: How to circumvent the "Security verification" while flashing a modded AMI UEFI BIOS by Fernando 06.01.2014 23:19

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Zitat von Zardoc im Beitrag #25
VirtualFred did remod with tool and Security Verification or Validation failed was still showing.
AFAIK he just modded the BIOS, but the procedure to circumvent the Security Verification according to post #14 has to be done by yourself.

#27 RE: How to circumvent the "Security verification" while flashing a modded AMI UEFI BIOS by Zardoc 07.01.2014 21:11

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No,

He pm'd me and had re moded bios. It did not work.

#28 RE: How to circumvent the "Security verification" while flashing a modded AMI UEFI BIOS by Fernando 07.01.2014 21:41

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Zitat von Zardoc im Beitrag #27
No,
He pm'd me and had re moded bios. It did not work.
How did you try to flash it?
How was the BIOS named and which Flash tool did you use with which command?

#29 RE: How to circumvent the "Security verification" while flashing a modded AMI UEFI BIOS by Zardoc 07.01.2014 21:57

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Hi Fernando,

To be frank with you it doesn't really matter anymore because bios has been updated to 1707 version, but FYI he had renamed it Z87A.cap. I tried to rename the mofified version but to no avail.

#30 RE: How to circumvent the "Security verification" while flashing a modded AMI UEFI BIOS by Fernando 07.01.2014 22:14

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Zitat von Zardoc im Beitrag #29
FYI he had renamed it Z87A.cap. I tried to rename the mofified version but to no avail.
Flashing a BIOS named Z87A.CAP requires the Flashback button, but AFAIK your mainboard doesn't have it.

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