This bios for Lenovo ThinkPad T540P LKM-1 SWG2 MB 12308-2 48.4L016.021 is currently supervisor locked I search the methode to unlock this bios thanks
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Lenovo ThinkPad T540P LKM-1 SWG2 MB 12308-2 48.4L016.021 PASSWORD
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Re: Lenovo ThinkPad T540P LKM-1 SWG2 MB 12308-2 48.4L016.021 PASSWORD
Supervisor password is in EC. Cannot be unlocked in BIOS directly.OpenBoardView — https://github.com/OpenBoardView/OpenBoardView
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Re: T540p BIOS black screen issue
Originally posted by peterzz2007 View PostHello all,
laptop turns on,but with black screen (screen tested good on another maschine).
Can anyone take a look and patch eventually attached dump pls. ?
Thank you!Attached Files
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Re: Lenovo ThinkPad T540P LKM-1 SWG2 MB 12308-2 48.4L016.021 PASSWORD
Unfortunately, I could not find any information on the Internet for the T540p model, which points on the board should be used to connect the programmer.
So I had to figure it all out myself and here is my result.
As a programmer, I used the already mentioned JIG from Vertyanov.
Everything worked the first time.
of course I had to have power connected to the laptop.
If you have a motherboard outside, don't forget to connect an additional board with USB and RJ45.
If you do not connect this additional board, your NB will not turn on.
To remove the password in the BIOS, just overwrite the eeprom area in the MEC1633 chip with the attached file.
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Re: LENOVO BIOS AUTO-PATCHER for Supervisor Password Removal
Hello. Help remove bios password. after the patch, I return the file to the chip - a black screen, and 5 sigals
Lenovo t540pAttached FilesLast edited by Paul.Junge2020; 05-12-2023, 12:26 PM.
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