Fixing corrupt lenovo thinkpad P50 bios

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  • pirih77
    Senior Member
    • Oct 2020
    • 62
    • Slovenia
    #1

    Fixing corrupt lenovo thinkpad P50 bios

    Hello,
    I would like to lern how to fix a corrupt lenovo bios myself, so i dont need to ask for help every time

    Could someone point me to the tools and any other info used for this.
    And i need to know which parts of the original bios are needed and wich can be used from some other working bios.

    Things i successfully did so far:
    Unlocking
    Cleaning ME

    At the moment i am working on a P50 with 4 beeps.
    If i flash patched bios, the laptops boots, but i cant enter the bios or anything else.

    Any help apprechiated.
    Attached Files
    Last edited by SMDFlea; 11-15-2021, 04:54 PM.
    Tags: None
    • peste
      Super Moderator
      • Dec 2016
      • 12676
      • ROMANIA
      #2
      Re: Fixing corrupt lenovo bios

      Originally posted by pirih77
      Hello,
      I would like to lern how to fix a corrupt lenovo bios myself, so i dont need to ask for help every time

      Could someone point me to the tools and any other info used for this.
      And i need to know which parts of the original bios are needed and wich can be used from some other working bios.

      Things i successfully did so far:
      Unlocking
      Cleaning ME

      At the moment i am working on a P50 with 4 beeps.
      If i flash patched bios, the laptops boots, but i cant enter the bios or anything else.

      Any help apprechiated.
      like this..

      https://www.badcaps.net/forum/showthread.php?t=88533
      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

        • pirih77
          Senior Member
          • Oct 2020
          • 62
          • Slovenia
          #3
          Re: Fixing corrupt lenovo bios

          Cleaning ME was the nfirst thing i tryed.
          But even with the cleaned ME i get 4 beeps.

          I am sure there is something with bios, because it boots with patched bios (gets stuck at lenovo Logo, or no picture if i try to enter the bios)

          P50 4 beeps - TCG-compliant functionality-related problem (might bethe TPM initialization failure)

          Any other steps i can take ?

            Comment

            • peste
              Super Moderator
              • Dec 2016
              • 12676
              • ROMANIA
              #4
              Re: Fixing corrupt lenovo bios

              Originally posted by pirih77
              Cleaning ME was the nfirst thing i tryed.
              But even with the cleaned ME i get 4 beeps.

              I am sure there is something with bios, because it boots with patched bios (gets stuck at lenovo Logo, or no picture if i try to enter the bios)

              P50 4 beeps - TCG-compliant functionality-related problem (might bethe TPM initialization failure)

              Any other steps i can take ?
              try..
              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

                • pirih77
                  Senior Member
                  • Oct 2020
                  • 62
                  • Slovenia
                  #5
                  Re: Fixing corrupt lenovo thinkpad P50 bios

                  Hello,
                  The second (Orig+$0AN1E00+outimage.rar) is working.
                  The other one is not working.
                  CAn you tell me what you did, because i would really like to lern to do that myself.
                  The only diference between yours and mine cleaned ME bios i can see that you useed consumer version of ME.
                  Why that if in the original it was COR ?
                  Did you just clean ME ory you did some other MAGIC

                  Thank you for the help.

                    Comment

                    • peste
                      Super Moderator
                      • Dec 2016
                      • 12676
                      • ROMANIA
                      #6
                      Re: Fixing corrupt lenovo thinkpad P50 bios

                      Originally posted by pirih77
                      Hello,
                      The second (Orig+$0AN1E00+outimage.rar) is working.
                      The other one is not working.
                      CAn you tell me what you did, because i would really like to lern to do that myself.
                      The only diference between yours and mine cleaned ME bios i can see that you useed consumer version of ME.
                      Why that if in the original it was COR ?
                      Did you just clean ME ory you did some other MAGIC

                      Thank you for the help.
                      in the bios that work I also used the update on the site.
                      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

                        • pirih77
                          Senior Member
                          • Oct 2020
                          • 62
                          • Slovenia
                          #7
                          Re: Fixing corrupt lenovo thinkpad P50 bios

                          Hello,
                          I am trying to do the same for another dead P50. No sucess so far
                          If i understand correctly you replaced BIOS Region.bin in FIT with $0AN1E00.fl1 extracted from update on the site.
                          The problem i have is that BIOS Region.bin is larger than $0AN1E00.fl1. All the info i could find online shows larger FL1 which you than fix in hex editor.
                          I attached the bios fron the current patient
                          Any pointers aprechiated.
                          Attached Files

                            Comment

                            • peste
                              Super Moderator
                              • Dec 2016
                              • 12676
                              • ROMANIA
                              #8
                              Re: Fixing corrupt lenovo thinkpad P50 bios

                              Originally posted by pirih77
                              Hello,
                              I am trying to do the same for another dead P50. No sucess so far
                              If i understand correctly you replaced BIOS Region.bin in FIT with $0AN1E00.fl1 extracted from update on the site.
                              The problem i have is that BIOS Region.bin is larger than $0AN1E00.fl1. All the info i could find online shows larger FL1 which you than fix in hex editor.
                              I attached the bios fron the current patient
                              Any pointers aprechiated.
                              enter the update in the HxD program, and cut it to the correct dimensions.
                              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

                                • pirih77
                                  Senior Member
                                  • Oct 2020
                                  • 62
                                  • Slovenia
                                  #9
                                  Re: Fixing corrupt lenovo thinkpad P50 bios

                                  In my case the FL1 file was a little smaler than bios region in FIT from original dump.
                                  Can i just change it ? I tryed but still not working

                                    Comment

                                    • pirih77
                                      Senior Member
                                      • Oct 2020
                                      • 62
                                      • Slovenia
                                      #10
                                      Re: Fixing corrupt lenovo thinkpad P50 bios

                                      I tryed everythihg, but it is not working. Could someone else meke me a bios with update from the site like the last one. Or i will have to use it for parts

                                        Comment

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