Lenovo Thinkpad W541 Shutdowns after bios flash (removing BAP)

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  • Kei.Kurono.931
    New Member
    • Mar 2021
    • 4
    • Mexico
    #1

    Lenovo Thinkpad W541 Shutdowns after bios flash (removing BAP)

    Hi. I have a Thinkpad W541 that i was trying to remove the Bios Supervisor Password using this guide. https://www.badcaps.net/forum/showthread.php?t=87588 LENOVO BIOS AUTO-PATCHER for Supervisor Password Removal

    I have the old bios backup but when i restored the original bios the laptop shutdowns after a few seconds and can´t load Windows.

    - Using a CH134a + SOIC 8 Clip + Colibri 1.0.1.61 i backed up the original bios 3 times and verified all of them were the same.

    - Used the Lenovo Bios Auto Patcher applied the patched file to the chip and verified that writed ok.

    - Assembled the laptop and booted it up, after a few tries the patch applied, disasembly and restored original bios file, restored bios to defaults (no password now) but computer shutdowns and can´t load windows OS.

    Maybe my initial backup was corrupt (i verified it 3 times) but now i need help to recover it.

    I extracted the same bios 2.33 from the lenovo website but when i trim it i end with a file larger than 4mb so i need your help and instructions how to procced and merge the bios extracted with my backup or a working one to recover my bios.

    I have

    TW541_1_BACKUP.BIN (my original backup)
    LENOVO_W541_4MB_MICRON_25Q03213_PATCHED.BIN (file i found in this forum)
    $01E2000.FL1 (bios extracted from Lenovo Update Bios 2.33 same version as my old bios)

    Thanks every one.
    Attached Files
    Tags: None
    • peste
      Super Moderator
      • Dec 2016
      • 12244
      • ROMANIA
      #2
      Re: Lenovo Thinkpad W541 Shutdowns after bios flash (removing BAP)

      Originally posted by Kei.Kurono.931
      Hi. I have a Thinkpad W541 that i was trying to remove the Bios Supervisor Password using this guide. https://www.badcaps.net/forum/showthread.php?t=87588 LENOVO BIOS AUTO-PATCHER for Supervisor Password Removal

      I have the old bios backup but when i restored the original bios the laptop shutdowns after a few seconds and can´t load Windows.

      - Using a CH134a + SOIC 8 Clip + Colibri 1.0.1.61 i backed up the original bios 3 times and verified all of them were the same.

      - Used the Lenovo Bios Auto Patcher applied the patched file to the chip and verified that writed ok.

      - Assembled the laptop and booted it up, after a few tries the patch applied, disasembly and restored original bios file, restored bios to defaults (no password now) but computer shutdowns and can´t load windows OS.

      Maybe my initial backup was corrupt (i verified it 3 times) but now i need help to recover it.

      I extracted the same bios 2.33 from the lenovo website but when i trim it i end with a file larger than 4mb so i need your help and instructions how to procced and merge the bios extracted with my backup or a working one to recover my bios.

      I have

      TW541_1_BACKUP.BIN (my original backup)
      LENOVO_W541_4MB_MICRON_25Q03213_PATCHED.BIN (file i found in this forum)
      $01E2000.FL1 (bios extracted from Lenovo Update Bios 2.33 same version as my old bios)

      Thanks every one.
      bios extracted from the update posted by you.
      Attached Files
      Due to a lack of donations, server free space at a critical level, and possible closure of Bios Requests all donations are welcome, click:

      >>>>> https://www.badcaps.net/index.php?pageid=donate1 <<<<<

      Every donation made will go towards server fees and maintenance costs.

        Comment

        • Kei.Kurono.931
          New Member
          • Mar 2021
          • 4
          • Mexico
          #3
          Re: Lenovo Thinkpad W541 Shutdowns after bios flash (removing BAP)

          Thank you.

          Will try and post results.

            Comment

            • Kei.Kurono.931
              New Member
              • Mar 2021
              • 4
              • Mexico
              #4
              Re: Lenovo Thinkpad W541 Shutdowns after bios flash (removing BAP)

              Originally posted by peste
              bios extracted from the update posted by you.
              So far no luck but will try with another programmer.

              Thank you.

                Comment

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