Macbook 12" locked up


My MacBook 12" is seized up with the message "apple.com/support -2100F" on the screen.


It does not respond to any keys.


Any suggestions gratefully received!

MacBook, 10.14

Posted on Oct 20, 2019 12:37 PM

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Question marked as Top-ranking reply

Posted on Nov 4, 2019 1:18 AM

Thanks for your reply.


To update this thread for the benefit of anyone else, I resolved the problem. I could not boot into safe mode as the machine was locked up and not responding to ANY keystrokes. Instead I disconnected from the power supply and waited for the battery to go flat. Took only about five hours so something must have been going on behind that locked screen!


Once I restored power by plugging the charger back in, the machine restarted itself and without asking, downloaded and installed a large Apple update then rebooted itself again. After which, it has worked flawlessly!


One further piece of information, I had previously had difficulty with the keyboard. On waking from sleep mode I could not enter my password as the keys were all returning the wrong characters and hence wrong password was being seen by the computer. I had used safe mode previously a couple of times to change the selected keyboard, to get some usability back.


Thanks for your post.


Mike


3 replies
Question marked as Top-ranking reply

Nov 4, 2019 1:18 AM in response to sterling r

Thanks for your reply.


To update this thread for the benefit of anyone else, I resolved the problem. I could not boot into safe mode as the machine was locked up and not responding to ANY keystrokes. Instead I disconnected from the power supply and waited for the battery to go flat. Took only about five hours so something must have been going on behind that locked screen!


Once I restored power by plugging the charger back in, the machine restarted itself and without asking, downloaded and installed a large Apple update then rebooted itself again. After which, it has worked flawlessly!


One further piece of information, I had previously had difficulty with the keyboard. On waking from sleep mode I could not enter my password as the keys were all returning the wrong characters and hence wrong password was being seen by the computer. I had used safe mode previously a couple of times to change the selected keyboard, to get some usability back.


Thanks for your post.


Mike


Oct 26, 2019 12:52 PM in response to MiketheBoilerman

Hello MiketheBoilerman,


Welcome to Apple Support Communities! I understand your MacBook has the message shown above. I'm happy to assist you with this.


Let's start by booting into safe mode in order to see if your MacBook will boot all the way up:

Use safe mode to isolate issues with your Mac

Next, follow the steps in this article to help your MacBook recognize your startup disk:

Reset NVRAM or PRAM on your Mac


Best Regards.

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Macbook 12" locked up

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