820-00138 turns on, battery error symbol, then turns off. Works fine in SMC bypass. So sensor issue? How do I sort sensor issue.
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820-00138 turns on, battery error symbol, then turns off. Works fine in SMC bypass
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Post voltage for pins 9, 15, 26 of U7100 and F7140/41.
Also post exact value (measured onboard, ohm scale) for R7180/81 and R7185/86.
Check resistance between pins 17/18 and 27/28 (ohm scale) at U7100 too.Last edited by 2informaticos; 01-24-2019, 11:52 AM.
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I don't think that.
Something else happened there.
Unless you used fake charger, which gives full voltage always.
Original Apple Magsafe 2 gives only 3V at the first moment, before the board is detected correctly.
Bench power supply also can generate such kind of problem.Last edited by 2informaticos; 01-28-2019, 11:08 AM.
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