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Lenovo Thinkpad x250 - Beeps and advanced menu
#1
Hi forum Smile

I extracted and modded my BIOS to remove the screen whitelist of the Lenovo x250.
This mod seems to have worked, but now I get 10 beeps in groups of five upon cold boot, which, as I read, comes from a mismatch between expected and present checksum. The TPM chip is set to off in BIOS, yet those beeps occur.

Can someone recreate the hashes in my BIOS or point where I can learn about doing it myself? I googled and couldn't find a tutorial.
Also, is there a way to unlock the advanced menu?

I have a CH341 programmer and thus can read and flash my BIOS.

My BIOS is here:
https://www.dropbox.com/s/d2h3onht6xisgj...s.bin?dl=0
find
quote
#2
(04-14-2019, 01:13 PM)Dagor Wrote: Hi forum Smile

I extracted and modded my BIOS to remove the screen whitelist of the Lenovo x250.
This mod seems to have worked, but now I get 10 beeps in groups of five upon cold boot, which, as I read, comes from a mismatch between expected and present checksum. The TPM chip is set to off in BIOS, yet those beeps occur.

Can someone recreate the hashes in my BIOS or point where I can learn about doing it myself? I googled and couldn't find a tutorial.
Also, is there a way to unlock the advanced menu?

My BIOS is here:
https://www.dropbox.com/s/d2h3onht6xisgj...s.bin?dl=0
Hi
need your unmodified dump
Check your PM
find
quote


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