Lenovo P17 Gen2 Type 20YU bios

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  • DPyro
    Member
    • Sep 2012
    • 25
    • Canada
    #1

    Lenovo P17 Gen2 Type 20YU bios

    Lenovo P17 Gen2
    Type 20YU
    Serial: PF3NSGCE

    Will not post but shows blinking keyboard lights. Battery charges so maybe not power related but bios corrupted.
    Can't read chip on motherboard using Pomona test clips and CH341A programmer, maybe need to remove?

    JBIOS1 shows as Gigadevice 25R256DYIG which is not listed in Asprogrammer.




    Don't post pictures or videos unless asked...



    Tags: None
    • peste
      Super Moderator
      • Dec 2016
      • 12806
      • ROMANIA
      #2
      post merged..next time look for a thread with the name and model, motherboard model of the laptop, and post there, if you can't find it, then make a new thread..
      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

        • peste
          Super Moderator
          • Dec 2016
          • 12806
          • ROMANIA
          #3
          The bios chip must be unsoldered from the board before writing or reading..
          do not use the clip, you may have errors..if you do not have anything to unsolder it with,
          solder wires between the programmer and the bios chip..

          .here is a video for example..https://www.youtube.com/watch?v=DWWi...l=ThisIsHow​

          if you don't have the chip in the database, look for a similar one...
          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

            • DPyro
              Member
              • Sep 2012
              • 25
              • Canada
              #4
              Ok I tested the clip on a Chromebox CN60 and was able to dump that bios. I will try to remove the chip.

                Comment

                • SMDFlea
                  Super Moderator
                  • Jan 2018
                  • 20898
                  • UK
                  #5
                  Posts moved to new thread.
                  All donations to badcaps are welcome, click on this link to donate. Thanks to all supporters

                    Comment

                    • DPyro
                      Member
                      • Sep 2012
                      • 25
                      • Canada
                      #6
                      I managed to remove the chip but it looks like a pin is missing.

                        Comment

                        • peste
                          #6.1
                          peste commented
                          04-16-2025, 12:08 PM
                          Editing a comment
                          you read in the first post...it's written in red....
                        • DPyro
                          Member
                          • Sep 2012
                          • 25
                          • Canada
                          #7
                          OK is this chip dead? SPI pinout says pin #3 is write protect pin. I'm unable to read IC/not responding.

                            Comment

                            • DPyro
                              Member
                              • Sep 2012
                              • 25
                              • Canada
                              #8
                              Is this good as a compatible replacement?

                              Link

                                Comment

                                • DPyro
                                  Member
                                  • Sep 2012
                                  • 25
                                  • Canada
                                  #9
                                  Replaced the chip but still doing the same thing.

                                    Comment

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