Macbook Pro M1 a2338 (820-02020) - 5V 0A

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  • obelix24
    Badcaps Veteran
    • Jun 2023
    • 291
    • Slovakia
    #1

    Macbook Pro M1 a2338 (820-02020) - 5V 0A

    Hi all just got another Macbook Pro M1 a2338 that is taking only 5V 0a on both USB-C ports.

    I've checked and firstly there was 5V 0,4a and after checking with thermal camera i found it was C81DB that was shorted after removing and replacing with new cap short was gone but i get only 5V 0a.

    PPBUS_AON is 12,3V

    I've checked according to repair wiki all 4 resistors (R5221, R5222, R5261, R5262) all were 1,1ohm so i've replaced U5200 but still the same problem only 5V 0a

    Any idea ?
    Tags: None
    • mon2
      Badcaps Legend
      • Dec 2019
      • 14659
      • Canada
      #2
      Perform a thermal camera scan.

      Try a DFU.

      [SOLVED] M1 MacBook Pro clicking sound logic board 5V no power on A2338 820-02020 - Badcaps​

        Comment

        • obelix24
          Badcaps Veteran
          • Jun 2023
          • 291
          • Slovakia
          #3
          I've tried thermal camera but as there is 0a nothing is gettin hot. If it will be in DFU there will be atleast some amp consuption.

            Comment

            • obelix24
              Badcaps Veteran
              • Jun 2023
              • 291
              • Slovakia
              #4
              Any idea what to check ?

                Comment

                • obelix24
                  Badcaps Veteran
                  • Jun 2023
                  • 291
                  • Slovakia
                  #5
                  I've tried in known good case and i'm still getting only 5V 0A ...

                  tried to put it in DFU but nothing it still remains on 5V 0A ... other macbook pro with M1 is at least turning on / off (i can see it that usb meter is turning on and off) but on this one it's still on 5V 0A ...

                    Comment

                    • obelix24
                      Badcaps Veteran
                      • Jun 2023
                      • 291
                      • Slovakia
                      #6
                      Ok got it fixed it was bad solder joint under U8110 after resoldering i got 20v charging fine and turned on

                        Comment

                        • mon2
                          Badcaps Legend
                          • Dec 2019
                          • 14659
                          • Canada
                          #7
                          Excellent find!

                            Comment

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