Lenovo T15 gen 1 secure boot

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  • badcaps411
    New Member
    • Oct 2022
    • 5
    • Germany
    #1

    Lenovo T15 gen 1 secure boot

    Hello,

    I have a Lenovo T15 gen 1 where I can't get the secure boot disabled. I think it is related to the security chip. The BIOS is completely free, no password or anything. The only problem is that the option to disable secure boot is grayed out. Trying to boot it, GRUB 2.02 starts and expects a certain Software. If you want to change something you need to enter a username and password. While experimenting, I was able to load the firmware from the hard drive. There I found signed files, in one also the hashed password (cracking probably not possible in lifetime). It was probably a workstation secured with SINA, which the seller did not tell me... I didn't know that you can protect a system so that you can't even install a new system if the BIOS doesn't have a lock in it.

    Is it possible to disable secure boot anyway? As I said in the BIOS I tried everything...
    Tags: None
    • volinakis
      Badcaps Legend
      • Jan 2021
      • 2666
      • N/A
      #2
      Re: Lenovo T15 gen 1 secure boot

      Originally posted by badcaps411
      Hello,

      I have a Lenovo T15 gen 1 where I can't get the secure boot disabled. I think it is related to the security chip. The BIOS is completely free, no password or anything. The only problem is that the option to disable secure boot is grayed out. Trying to boot it, GRUB 2.02 starts and expects a certain Software. If you want to change something you need to enter a username and password. While experimenting, I was able to load the firmware from the hard drive. There I found signed files, in one also the hashed password (cracking probably not possible in lifetime). It was probably a workstation secured with SINA, which the seller did not tell me... I didn't know that you can protect a system so that you can't even install a new system if the BIOS doesn't have a lock in it.

      Is it possible to disable secure boot anyway? As I said in the BIOS I tried everything...
      security- virtualisation- kernel DMA protection off.
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        Comment

        • badcaps411
          New Member
          • Oct 2022
          • 5
          • Germany
          #3
          Re: Lenovo T15 gen 1 secure boot

          all security settings are off, including dma protection.

            Comment

            • Sharky12
              New Member
              • Feb 2023
              • 1
              • romania
              #4
              Re: Lenovo T15 gen 1 secure boot

              Hello , did you find out how to fix it ? i have the same problem and i don t know what to do . thank you

                Comment

                • badcaps411
                  New Member
                  • Oct 2022
                  • 5
                  • Germany
                  #5
                  Re: Lenovo T15 gen 1 secure boot

                  No, unfortunately not .. the part is probably electronic waste

                    Comment

                    • swammyw
                      Senior Member
                      • Apr 2021
                      • 66
                      • finland
                      #6
                      Re: Lenovo T15 gen 1 secure boot

                      some laptops require a supervisor password to be set on bios to change secureboot setting

                        Comment

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