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Thinkpad T14 Gen2, Ryzen 5650U SN:PF3FBLF4 Type 20XL - dead after BIOS update

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    Thinkpad T14 Gen2, Ryzen 5650U SN:PF3FBLF4 Type 20XL - dead after BIOS update

    Hi folks,
    In course of preparation "new" gear for my daughter, i`ve updated BIOS in Thinkpad T14 Gen2, Ryzen 5650U SN:PF3FBLF4 Type 20XL.
    After completion of process, notebook should reboot, but instead didn`t started at all.
    It dosen`t react od power button at all, nor plugin in charger.
    I`ve disconected main battery for almost an hour (with cmos battery also) - it didnt helped.
    On powerbutton pins, there is 3.3V, charger and all of circuit seems fine
    So, there is a dump from bios chip, could somebody help me please, to fix this piece of sh@t
    Thank you in advance
    Attached Files

    #2
    Originally posted by szogun View Post
    Hi folks,
    In course of preparation "new" gear for my daughter, i`ve updated BIOS in Thinkpad T14 Gen2, Ryzen 5650U SN:PF3FBLF4 Type 20XL.
    After completion of process, notebook should reboot, but instead didn`t started at all.
    It dosen`t react od power button at all, nor plugin in charger.
    I`ve disconected main battery for almost an hour (with cmos battery also) - it didnt helped.
    On powerbutton pins, there is 3.3V, charger and all of circuit seems fine
    So, there is a dump from bios chip, could somebody help me please, to fix this piece of sh@t
    Thank you in advance
    try
    Attached Files
    ----------------------------------------------------------------------------------------------------------------------------------------------------------------------
    https://www.badcaps.net/donate/
    ----------------------------------------------------------------------------------------------------------------------------------------------------------------------

    Comment


      #3
      Originally posted by volinakis View Post

      try
      Unfortunately, no luck. Still stone cold

      Comment


        #4
        Originally posted by szogun View Post

        Unfortunately, no luck. Still stone cold
        bios image was extracted from update. Check soldering.
        ----------------------------------------------------------------------------------------------------------------------------------------------------------------------
        https://www.badcaps.net/donate/
        ----------------------------------------------------------------------------------------------------------------------------------------------------------------------

        Comment


          #5
          Originally posted by volinakis View Post

          bios image was extracted from update. Check soldering.
          Checked, still nothing.

          Comment


            #6
            Originally posted by szogun View Post

            Checked, still nothing.
            try
            Attached Files

            Comment


              #7
              Originally posted by danito View Post

              try
              Thank you, but still nothing.
              Is it correct, that pin 1 (CS) is constantly in high state (1.8V)?

              Comment

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