Discussion in 'BIOS Mods' started by Lutschpuppe, Jan 21, 2024.
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I compared 2 different OA3-PE-images in IDA and found some similarities, but wasn't able to find the location for key-insertion or structure. Fortunately, i have the matching bios-dump containing the correct structure, so it might work to copy it to the right offset.
This is what i found in IDA Pro:
Corresponding RW-report after modding my own machine, i added a generic key for MS Windows 10 Pro:
The key-string has to be added inside padding-area (AMI-bios), address found in IDA:
Take care to find the correct offset ; my first attempt was also succesful, but the address was not at the beginning of pad-area, because i worked with rom with empty NVRAM, so the free space was added on-top to the whole padding-area and i had to calculate the offset inside the pad-area.
I don't know if this mod is permanent and will survive updates, but i guess it will.
I'm sure most AMI-bios containing the same or similar OA3-module could be modded this way.