[PROBLEM] Flashing a modded ASRock Z370 MB BIOS

sxp · December 27, 2021, 10:29pm

which one patch use working ?
possible upload ?
i need Z370 asrock taichi

thanks

sxp · December 27, 2021, 10:34pm

This possible use latest version asrock bios Z370 asrock taichi
or same not working z370m ?
actually not possible test yet not any cpu

lordkag:

@MDoehler
There are a few things to check before moving on:
- DO YOU UNDERSTAND THE RISKS INVOLDED? I write in all caps because it is a serious matter. Despite my best intentions and my research, things can very well go south and you might end up with an expensive brick. Remember that I patch a firmware flasher to ignore some safety/security measures.
- Do you have an ASRock Fatal1ty Z370 Professional Gaming i7 with the latest BIOS, which is 3.20 at the time of this post?
- Can you flash a modified image with Intel FPT or by any other method? We need a way to flash a patched Instant Flash module.

If we can proceed, these are the steps:
1. Flash the latest official unmodified BIOS from ASRock with Instant Flash. We need to rule out any bugs in the official firmware.
2. Dump your current BIOS with FPT using the command "fptw64 -D bios_full.bin" and also "fptw64 -BIOS -D bios_rgn.bin". Keep them safe, put them on some external flash storage.
3. Using the files from the point above and the attached archive, run the following commands: "UEFIPatch.exe bios_rgn.bin patches1.txt -o bios_rgn_p1.bin" and also "UEFIPatch.exe bios_full.bin patches1.txt -o Z37_p1_3.20".
4. Run the command "fptw64 -BIOS -F bios_rgn_p1.bin".
5. Shutdown the computer.
6. Enter Instant Flash and try to flash a modified image that previously gave you an error. Remember to apply the patch using "UEFIPatch.exe your_bios_file.bin patches1.txt -o your_bios_file_patched.bin"
7. If unsuccesful, repeat steps 3-6 while replacing patches1.txt with patches2.txt and bios_rgn_p1.bin with bios_rgn_p2.bin and also Z37_p1_3.20 with Z37_p2_3.20
8. If unsuccesful, repeat steps 3-6 while replacing patches1.txt with patches3.txt and bios_rgn_p1.bin with bios_rgn_p3.bin and also Z37_p1_3.20 with Z37_p3_3.20
9. Report the outcome. If all patches are unsuccesful, provide text and/or pictures of the messages that appear on screen during a normal Instant Flash and one during the security error.

MeatWar · December 27, 2021, 10:41pm

No more patch needed, the UBU tool removes the capsule security check.

[Guide] How to flash a modded AMI UEFI BIOS

EDIT: Ok forgot that new note on Intel 300+

U can try, making an SPI dump of the current on system with Intel FPT tool, test bios access regions with write operation, if fails access u need to unlock it first, edit and then flash it back with the same tool.
or dump only the bios region, edit and paste over with UEFI tool in the stock bios file.
No success granted, ur risk ONLY.

Other than that, stick with the old guides, the user lordkag last login was back in 2018, Lost_N_Bios last January, so better try a more recent user that succeed in the operation on ur model.

sxp · December 28, 2021, 1:55pm

plz read linked post :
"b) that the UBU tool found it and was able to removed it (not possible with BIOSes of the newest ASRock mainboards)."

application:

2 - Remove Instant Flash Protection (Not work for AMD 400+/ Intel 300+ chipsers)

other way ?

@lordkag patch working latest bios z370 asrock or not ?