Macbook A2289 820-01987 stuck at 5V and 0,25A current draw

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  • toniegruszka
    New Member
    • Aug 2023
    • 3
    • Polska
    #1

    Macbook A2289 820-01987 stuck at 5V and 0,25A current draw

    Hello everyone.

    I have a problem finding the problem. MacBook came with a damaged flex usb c, 3 pins were shorted. No water damage.

    Voltages I have:
    pp3v3 g3h rtc
    pp1v5 upc xb ldo core
    pp1v5 upc xa ldo core
    pp3v3 upc xb ldo
    pp3v3 upc xa ldo
    ppbus g3h - 12.2V

    what I found is that there is no nand power supply
    no 1.8v, 2.5v, 0.9v

    Please give me some tips and help.
    Regards​
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