a2442 820-02098 usb-c begin charge only after reboot, until first disconnect

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  • a316
    Member
    • Oct 2024
    • 24
    • Georgia
    #1

    a2442 820-02098 usb-c begin charge only after reboot, until first disconnect

    briefly, one usb-c port, when connect when OS running, or in recovery mode, stays on 5v and 000 amp. If I reboot ( or connect usb-c on shutdown state), it makes 20v andbegins charging, until first disconnect/connect.

    *** on shutdown state, it makes 20v, charging stops after 4-6 seconds in rare case,, sometimes never stops. If not disconnect, it stay on 20v and charges even after OS boot. after disconnect/connect (ON state) it always stays 5v 000 amp

    it is not software issue, it happens only 1 port. other ports including magsafe3 is ok

    MB was after liquid damage, where to look?
    *** luquid damage was on cpu side, so CD chips are other sida and was undamaged

    like smc reset helps. but where can be problem?

    thank you for reply, pro-s
    Tags: None
    • a316
      Member
      • Oct 2024
      • 24
      • Georgia
      #2
      FIXED!!! CF812 was loose (no contact due liquid damage, resoldered and all come back)

      it was marketd as CRITICAL in schematics

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