1. AC Question's Avatar
    I'm looking to hack an old Samsung Galaxy S3 that no longer charges from the charging connector. I'm hoping it's just the connector itself and the charging electronics are okay. If so, I should be able to connect to the induction charger contacts inside the back next to the battery, or so the theory goes. I want to test this out, but I'd rather not fry the electronics playing with it, so can someone tell me which of the two contacts is the positive?

    Of course, if someone has performed similar experiments and wants to share their experience, I'd be grateful.
    10-31-2015 09:41 AM
  2. spagman's Avatar
    Best way to test this is to insert the battery, then with a multimeter set for V DC test the contacts.

    Or even better... Set the multimeter to continuity ( ohm) and find the ground contact first.
    10-31-2015 10:23 AM
  3. mermaldad's Avatar
    OP here. Had already tried method one, no luck. Method two, BINGO! For the record, the top one is the positive. Thanks!
    10-31-2015 11:39 AM
  4. spagman's Avatar
    Glad it worked...
    Let us know if your hack works
    10-31-2015 02:29 PM

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