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[GUIDE]How to unlock AMI Aptio 4 BIOS with mono-GUID tabs.
#1
How to unlock AMI Aptio 4 BIOS with mono-GUID tabs.
Old Sony Vaio and Clevo primarily.

1. Markers in BIOS indicating success of applying such method.
The same GUID for every Formset.
[Image: marker1.png]
Data array.
[Image: marker2.png]

2. Main part.
Some background and patching.
How it was done.
It is known that changing the beforementioned sequence of bytes array allows you to unlock settings for some bios, and for some it is not. So if it exists in all Aptio 4, why even if it is filled with bytes-ones, the menus are still not available? I do not have an exact answer to this question, but I can tell you how it can be fixed!
While looking for a general difference between Sony BIOS and any others in which changing the sequence of bytes gives visible changes, I determined which patches needed to be applied.
Patching.
To reproduce that legacy logic of work of bytes array, please follow next examples.
Place 1:
[Image: 899407-D7-99-FE-43-D8-9-A21-79-EC328-CAC21.png]
Place 2:
[Image: Freeform-of-Setup.png]
Place 3:
[Image: FE612-B72-203-C-47-B1-8560-A66-D946-EB371.png]

3. Results.
Before and after.
[Image: bf.png]
If any of the tabs is empty, then you either did something wrong, or you need to set the access level in AMIBCP program.

List of utilities and programs required for patching:
1. UEFITool;
2. Universal IFR Extractor;
3. HxD.
find
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