Lenovo ThinkPad T495s (AMD) - Supervisor Password Removal

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  • Keshak
    New Member
    • Dec 2025
    • 5
    • Czech republic
    #1

    Lenovo ThinkPad T495s (AMD) - Supervisor Password Removal

    Hello, I have a ThinkPad T495s with a Supervisor Password. I tried using an autopatcher, but it resulted in a 0285 Security Error (0285 TCG-compliant functionality-related error). I have restored the original dump and the laptop is working again.

    Could someone please patch my original dump correctly to remove the password?

    Model: T495s Chip: Winbond 25Q128 (read with CH341A + 1.8V adapter)

    Attached is my ORIGINAL working dump. Thanks!
    Attached Files

    if you find these attachements useful please consider making a small donation to the site

    Tags: None
    • Answer selected by Keshak at 12-05-2025, 09:37 AM.
      Markus1741
      Badcaps Veteran
      • Sep 2020
      • 994
      • N/A
      Originally posted by Keshak
      Hello, My Serial Number (S/N) is: PC-1CBABQ

      Thank you for your help!
      Her your file good luck ...
      Attached Files

      if you find these attachements useful please consider making a small donation to the site

        • Selected Answer

        Comment

        • Markus1741
          Badcaps Veteran
          • Sep 2020
          • 994
          • N/A
          #2
          Originally posted by Keshak
          Hello, I have a ThinkPad T495s with a Supervisor Password. I tried using an autopatcher, but it resulted in a 0285 Security Error (0285 TCG-compliant functionality-related error). I have restored the original dump and the laptop is working again.

          Could someone please patch my original dump correctly to remove the password?

          Model: T495s Chip: Winbond 25Q128 (read with CH341A + 1.8V adapter)

          Attached is my ORIGINAL working dump. Thanks!
          Hello post you sn number ...
          I have a new patched hash file for you.
          you have AMD so autopatcher will not work for you.

            Comment

            • Keshak
              New Member
              • Dec 2025
              • 5
              • Czech republic
              #3
              Hello, My Serial Number (S/N) is: PC-1CBABQ

              Thank you for your help!

                Comment

                • Markus1741
                  Badcaps Veteran
                  • Sep 2020
                  • 994
                  • N/A
                  #4
                  Originally posted by Keshak
                  Hello, My Serial Number (S/N) is: PC-1CBABQ

                  Thank you for your help!
                  Her your file good luck ...
                  Attached Files

                  if you find these attachements useful please consider making a small donation to the site

                    • Selected Answer

                    Comment

                    • Keshak
                      New Member
                      • Dec 2025
                      • 5
                      • Czech republic
                      #5
                      Hi, thanks for the file. The laptop boots fine (NO 0285 error), but I am still unable to enter BIOS.

                      Current behavior:
                      1. The Password Prompt is still present.
                      2. If I press ENTER (blank password) twice, I get a BLACK SCREEN and the system freezes (requires hard reset).
                      3. If I type some random password, it triggers "Error 0183: Bad CRC of Security Settings in EFI variable". and then sends me to black screen.

                      It seems the NVRAM/CRC is still mismatched. Can you please check it?

                        Comment

                        • Keshak
                          New Member
                          • Dec 2025
                          • 5
                          • Czech republic
                          #6
                          I put the original BIOS in and it works now! no password and boots right into BIOS without anyproblems.

                          Thank you very much for the help!

                            Comment

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