Thinkpad P53 'Discrete' selected in BIOS

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  • tuxstevo
    New Member
    • Oct 2024
    • 5
    • UK
    #1

    Thinkpad P53 'Discrete' selected in BIOS

    Hi,

    I have a Thinkpad P53 that boots but doesn't show anything on the display since selecting 'Discrete' in the Display options in the BIOS.
    My intention was to flash the BIOS with a dump from another P53 but the good machine has a Winbond chip and the broken one a Gigadevice chip. Does anybody know if the dumps are interchangeable or, if not, does anyone have a Gigadevice dump I could use or maybe fix my dump? I'm afraid i don't have the serial number as the labels are missing and I cant get the BIOS info up on the screen.
    Thanks,
    Tags: None
    • SMDFlea
      Super Moderator
      • Jan 2018
      • 20695
      • UK
      #2
      Originally posted by tuxstevo
      Hi,

      I have a Thinkpad P53 that boots but doesn't show anything on the display since selecting 'Discrete' in the Display options in the BIOS.
      My intention was to flash the BIOS with a dump from another P53 but the good machine has a Winbond chip and the broken one a Gigadevice chip. Does anybody know if the dumps are interchangeable or, if not, does anyone have a Gigadevice dump I could use or maybe fix my dump? I'm afraid i don't have the serial number as the labels are missing and I cant get the BIOS info up on the screen.
      Thanks,
      Post a backup of the bios chip contents, even if it is corrupt, and post the laptop serial number as well.

      Edit: . i see you posted in another thread https://www.badcaps.net/forum/troubl...57#post3687457 ,do you have it working now ?
      All donations to badcaps are welcome, click on this link to donate. Thanks to all supporters

        Comment

        • tuxstevo
          New Member
          • Oct 2024
          • 5
          • UK
          #3
          Hi,

          No I haven't had any joy with this one. The other post was regarding the good machine I was hoping to use to flash this BIOS.
          I'm afraid i don't have the serial number as i can't find any labels and can't access the BIOS. I have attached the BIOS dump.

          Thanks,
          Attached Files

            Comment

            • SMDFlea
              Super Moderator
              • Jan 2018
              • 20695
              • UK
              #4
              Originally posted by tuxstevo
              Hi,

              No I haven't had any joy with this one. The other post was regarding the good machine I was hoping to use to flash this BIOS.
              I'm afraid i don't have the serial number as i can't find any labels and can't access the BIOS. I have attached the BIOS dump.

              Thanks,
              What you`ve posted is the 1MB USB-C firmware
              All donations to badcaps are welcome, click on this link to donate. Thanks to all supporters

                Comment

                • tuxstevo
                  New Member
                  • Oct 2024
                  • 5
                  • UK
                  #5
                  Thanks for pointing that out. That looked like the most likely candidate for the BIOS but I’ll have to find the right chip. If you know which one it is, that info would be much appreciated.
                  Thanks,

                    Comment

                    • tuxstevo
                      New Member
                      • Oct 2024
                      • 5
                      • UK
                      #6
                      Hi,

                      I think this may be the right dump if you could have a look and let me know what you think?
                      I have also found the label with the serial number, it is PF-2BQB4X

                      Thanks,
                      Attached Files

                        Comment

                        • lertuares
                          New Member
                          • Jul 2025
                          • 2
                          • United States
                          #7
                          Thats funny I have the same issue with 2 of these, one started after updating to the latest bios and the other came in that way, no display and resetting CMOS doesnt fix it, not sure what to do, did any dump work for you?

                            Comment

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