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digmorepaka / thinkpad-firmware-patches

Collection of ThinkPad UEFI patches.
Do What The F*ck You Want To Public License
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Thinkpad T14 AMD Gen1 #9

Closed Minssc closed 7 months ago

Minssc commented 3 years ago
Model T14 AMD Gen1
Patchset Gen1_AMD
TPM Unknown
Notes no POST, keyboard leds(FnLock, F1, F4, CapsLock) blink with 4-5 seconds interval.
tried on BIOS ver.1.34
also, whitelist patch does nothing as pattern is not found at all.

I'm willing to help test things

digmorepaka commented 3 years ago

Did you use this https://github.com/sibradzic/UEFI-playground/blob/master/fix_vendor_hashes.py or hexedit method to disable tamper protection?

Minssc commented 3 years ago

I tried both methods and they both doesn't post.

Minssc commented 3 years ago

I also tried w/o tpm patch to no avail. Perhaps it's me that did something wrong. Here are the rom files

bios images.zip

digmorepaka commented 3 years ago

Updated the patches from xx, this time try without the hex replacement.

Minssc commented 3 years ago

no luck, same symptoms. FYI i had my board swapped would that matter?

digmorepaka commented 3 years ago

Try flashing the bypass patch only to verify that our bypass method works and that it's the other patches causing problems

Minssc commented 3 years ago

tried only patching the bypass and similar symtoms, keyboard LEDs flash in more constant 4 second interval.

digmorepaka commented 7 months ago

Looks like gen 1 AMD, and xx90 use a completely different tamper check bypass. Until that's publicly documented we're SOL. It does exist since allservice does have their password removal module functional, and that requires it.