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  1. B

    MOTHERBOARD REPAIR ATTEMPT

    Yes stable 12.36v on c5250 No short on PP3V8_AON No short on PPBUS_AON either
  2. B

    MOTHERBOARD REPAIR ATTEMPT

    Ok thanks for advice 🌹 when F5200/1 removed, reading on C5250 is 12.36v
  3. B

    MOTHERBOARD REPAIR ATTEMPT

    diode mode 820-02100
  4. B

    MOTHERBOARD REPAIR ATTEMPT

    Failed attempt to fix faulty MacBook Pro motherboard. There is a constant power cycle 0V->5V->19V. The following was noted and the actions taken: * There was a short circuit on line PP1V85_S2_IPD so components ut101 and ut102 were replaced. This fix solved the short problem. * When the power...
  5. B

    820-02382-a dim apple logo for few seconds then black - M1

    Just checked with another folder and there was an image. The problem is thus solved. Thank you for the time and effort.
  6. B

    820-02382-a dim apple logo for few seconds then black - M1

    Thanks for the reply! Yes, I placed the motherboard in another folder and saw the same symptoms.
  7. B

    820-02382-a dim apple logo for few seconds then black - M1

    I have got an m1 machine to repair. There is a problem with the display - when it powers up, the MacBook display is very dim. The apple logo appears for a few seconds and then disappears. The device seems to fully boot with caps lock key light turning on and off - when pressed, and trackpad...
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