Macbook Pro A1708 no boot/charging

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  • unimatrix93
    Badcaps Veteran
    • Oct 2021
    • 338
    • Magyarország
    #1

    Macbook Pro A1708 no boot/charging

    Hello everyone, I have a MBP A1708 with the following problem: Not turning on, only the fan starts to spin for a few seconds then nothing. No chime, nothing. CPU gets warm, All voltages are present on the board as far as I measured.
    If I do SMC reset, it does the fan spin procedure, but otherwise it's doesnt reacts to the power button.

    Two things I managed to pin point:
    Battery voltage is 2.2V, very dead wont charge even If I leave it on the charger.
    And after following this wiki (https://repair.wiki/w/A1708_2016,_20...ar_MacBook_Pro) I found out that injecting 0.9V on L2950 only draws around 40mah, where based o nthe wiki the IC U2800 should draw around 68mah. Is it possible that I should replace U2800 or there can be something else I should check/try first?

    Thank you!
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