820-01041 cycling

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  • iMuhtaseb
    Senior Member
    • Jan 2017
    • 122
    • Palesine
    #1

    820-01041 cycling

    Hello everybody and I hope you all doing well!

    I have a 820-01041 on me that shows the Apple logo for a second and it shuts off immediately.. I cannot boot into recovery OS even.

    When I turn on and hold the alt key it remains on forever, when its asked to into Macintosh HD it shuts down again.

    T2 revive was attempted and did not help (restore didn't work).

    The computer turns on taking 20V with up to 1.2A for a couple of minutes then drops to 0.02A and again..

    This is a weird one because no prior liquid damage or corrosion anywhere.. the computer is just squeaky clean.

    I'm suspecting a bad T2 chip but I wanted some advice and to be honest I don't know where to start with this one!

    I appreciate every help!

    Thanks
    Tags: None
    • piernov
      Super Moderator
      • Jan 2016
      • 4435
      • France
      #2
      Re: 820-01041 cycling

      I don't know for this one exactly, but some newer boards with dGPU require a known good battery to boot fully into macOS.
      OpenBoardView — https://github.com/OpenBoardView/OpenBoardView

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