Lenovo Thinkpad T14 Gen 4(Intel) Password Removal

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  • justinlyman
    New Member
    • Jun 2025
    • 4
    • United States
    #1

    Lenovo Thinkpad T14 Gen 4(Intel) Password Removal

    I have a Lenovo Thinkpad T14 Gen(intel) that has an supervosr password set, and I need some help removing it. I have a programmer and have read and re-written BIOS chips before, but am not finding any info on how to do this on a T14 Gen 4. Here are the details:
    Thinkpad T14 Gen(intel)
    Model: 21HES40C00
    S/N: PF4HMJJMX

    I can upload the BIOS file as well, but not sure which chip it is, I will post pictures for reference, guessing it is one of these two:
    winbond 25Q512JVEN
    GigaDevice 25B128ESIG
    Attached Files
    Tags: None
    • hoaca388
      Badcaps
      • Jan 2022
      • 12268
      • Socialist Republic of Vietnam
      #2
      Originally posted by justinlyman
      I have a Lenovo Thinkpad T14 Gen(intel) that has an supervosr password set, and I need some help removing it. I have a programmer and have read and re-written BIOS chips before, but am not finding any info on how to do this on a T14 Gen 4. Here are the details:
      Thinkpad T14 Gen(intel)
      Model: 21HES40C00
      S/N: PF4HMJJMX

      I can upload the BIOS file as well, but not sure which chip it is, I will post pictures for reference, guessing it is one of these two:
      winbond 25Q512JVEN
      GigaDevice 25B128ESIG
      I'm afraid the password for this model is not in the bios but in the I/O.
      ↵
      Any donations to badcaps are welcome, click this link to donate . Thanks to all the supporters
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