Skip to main content

Released in November 2020, the 13" MacBook Pro features Apple's Arm-based M1 SoC with both an 8-core CPU and 8-core GPU. (Model A2338 / EMC 3578 with two Thunderbolt 3 ports)

111 Questions View all

MacBook Pro won’t turn on after battery disconnection


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?

Answer this question I have this problem too

Is this a good question?

Score 1

Restart your system and press the D key to enter into the system’s onboard diagnostics, let us know what the erro message is.


@danj sadly i can’t get into diagnostics


@Majd D

For a apple silicon Mac you need to press/hold command(CMD ⌘) + D at start up/restart

That should get you into the diognostics:-)


@hellomacos - Yep! Had Intel on my mind. Thanks for catching that.



No problem

It happens to me all the time XD



Show 8 more comments

Add a comment

1 Answer

Most Helpful Answer

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.

Block Image

Was this answer helpful?

Score 2

1 Comment:

that’s what i was thinking. but after making sure it’s connected dozens of times i’m not convinced i short circuited it :(


Add a comment

Add your answer

Majd D will be eternally grateful.
View Statistics:

Past 24 Hours: 0

Past 7 Days: 5

Past 30 Days: 32

All Time: 572