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hello i have a 2020 m1 macbook pro. i disconnected the battery and reconnected it, and now my macbook will only turn on when connect to the power adapter. also the fax runs on max when it’s on. could it be that i haven’t reconnected the battery correctly?
This sounds to me like the battery data cable is not connected quite properly, or your battery is faulty. This is pretty typical of a sensor not communicating toThe MacBook Pro Battery has 2 battery connections. The first is the small cable and the second is the large T5 screw, which forces the actual power connections. I would verify the cable is seated properly on both ends, and that the little latch holding it in place is present, and closed.