MacBook Pro 820-01987- condensation damage repaired but has sensor issue

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  • gurj1979
    Senior Member
    • Dec 2014
    • 186
    • UK
    #1

    MacBook Pro 820-01987- condensation damage repaired but has sensor issue

    Hi guys.
    Got a customer MBP 2020 which has a dad of corrosion from condensation, resulted in no power at all.
    I replaced the corroded components and repaired the traces. Restored power and now Iccan get to login screen.

    But when the CPU gets warm (not hot) and fan gradually starts spinning faster and then MBP turns off. Pressing power button turns it back on for couple of seconds then it turns off again.

    Seems sensor related, but it won't even let me get as far as running the built-in ASD.

    I can get back to you later with the components which had corrosion.
    Last edited by gurj1979; 08-01-2023, 03:15 PM. Reason: Added board model number.
    Tags: None
    • gurj1979
      Senior Member
      • Dec 2014
      • 186
      • UK
      #2
      Re: MacBook Pro 2020 - condensation damage repaired but has sensor issue

      So the board number is 820-01987.
      Components which had condensation corrosion were:-
      C4501
      R3934
      C4472
      R3971

      Please help.

        Comment

        • gurj1979
          Senior Member
          • Dec 2014
          • 186
          • UK
          #3
          Re: MacBook Pro 820-01987- condensation damage repaired but has sensor issue

          Help anyone.

            Comment

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