This is no request thread! HP COMPAQ bioses, how to modify the bios?

It's hard to make a list of settings as there's no reader for setup module and I have to write them out manually. But I can tell the total number in different menus.

Spoiler

Device Configuration 23
Built-In Device Options 11
Boot Options 30
Port Options 10

Also, any of the settings can be removed. This can be done by writing bit 6 to visibility control byte of a setting.

Code:

or <byte>, 40h;      sets bit 6
and <byte>, BFh;     clears bit 6

Spoiler

 

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@Dralt
https://forums.mydigitallife.net/posts/1869257

This is the last time I post link to the saved mods.

 

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I have the same problem.. F.20 on my HP-620 Laptop and no idea what happens next.. Really no chance to remove the whitelist? I don't want to believe it...

 

Yes, software rollback from F20 to the modded F0A is not allowed by bios.

You cannot modify F20 since the update is staged. If you try disabling protection so the WL can be removed, changes won't be reflected. Current BIOS notices the boot block was changed, then denies the update.

Therefore, the solution is to get an SPI prog.

 

Thanks for the answer. I have the CH341a programmer ...What would be done?

 

@Moddo73
You may upload a dump somewhere and then share with me.

 

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google.com/search?q=filesharings

Why would I ask for a file which is
publicly available?

 

Ok, thank you very much for your help... I am new in this field and will see if I can find a professional somewhere who is willing to help me... Please apologise for your wasted time...