Thinkpad Yoga 14 20dn black screen, no bios logo

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  • yessir
    New Member
    • Feb 2020
    • 3
    • Germany
    #1

    Thinkpad Yoga 14 20dn black screen, no bios logo

    Hello guys,

    I've got recently my hands on a Thinkpad Yoga 14 (20dn) which will not boot up. (black screen, no bios logo)
    When I press the power button, the keyboard illuminates and the FN-Led lights up. Also the fan spins up. But thats it, nothing else.

    For my understanding it could be a bricked BIOS. Unfortunately I have no exact history about what happened with the laptop.
    I disassembled the hole thing to locate the BIOS chip but didn't find it.
    The mainboard is a LCB-1 MB 13323-2.
    I did a little bit research on the board and found ebay listings with spare boards which have a bios chip but mine didnt.
    my board:
    https://imgur.com/YspvvT2

    ebay listing:
    https://www.ebay.de/itm/Lenovo-Think...-/153526028716

    Maybe someone has ideas or hints to resurrect this laptop.

    Thank you!
    Tags: None
    • piernov
      Super Moderator
      • Jan 2016
      • 4439
      • France
      #2
      Re: Thinkpad Yoga 14 20dn black screen, no bios logo

      .
      Attached Files
      OpenBoardView — https://github.com/OpenBoardView/OpenBoardView

        Comment

        • yessir
          New Member
          • Feb 2020
          • 3
          • Germany
          #3
          Re: Thinkpad Yoga 14 20dn black screen, no bios logo

          Originally posted by piernov
          .
          Hello piernov, thank you for your help. Unfortunately I can't find a supplier that can provide me with this chip. Maybe somebody know a supplier preferably located in Europe.

          This are the details:

          Device: Lenovo / Thinkpad Yoga 14 / 20dn
          Mainboard: LCB-1 MB 13323-2
          BIOS-Chip: MXIC / L150515-10G

          Thank you very much folks!

            Comment

            • norekfm
              New Member
              • Feb 2020
              • 1
              • Polska
              #4
              Re: Thinkpad Yoga 14 20dn black screen, no bios logo

              Hello

              Did You fix the issue ??
              I have on table same MB and same behavior

              Regards
              A

                Comment

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