some characters on keyboard not functioning after macos sierra installation keys on one side not functioning after installation of sierra on my mac book pro

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dssheorey Author

Level 1

31 points

some characters on keyboard not functioning after macos sierra installation keys on one side not functioning after installation of sierra on my mac book pro

keys on one side not functioning after installation of sierra on my mac book pro

MacBook Pro, macOS Sierra (10.12), null

Posted on Sep 22, 2016 2:05 AM

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Answer 1

jdo_apple

Community Specialist

Sep 23, 2016 8:57 AM in response to dssheorey

Hello dssheorey,

Thank you for using the Apple Support Communities. I know having an issue with your keyboard after updating is not what you expect. The good news is the following steps will be helpful in resolving your issue and get your keyboard working properly again. First, start with resetting the System Management Controller (SMC) on your Mac:

Reset the System Management Controller (SMC) on your Mac

If you're still having an issue after resetting the SMC, use safe mode to start up your Mac so that it performs certain checks, delete system cache files, verifies your startup disk, and attempts to repair directory issues if needed. Log into your user account while in safe mode and test the issue again. Then restart normally and test again to see if this issue is resolved.

Try safe mode if your Mac doesn't finish starting up
Limited graphics performance in OS X recovery or safe mode

Cheers!

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Answer 2

Tom Gewecke

Level 10

122,420 points

Sep 23, 2016 9:56 AM in response to jdo_apple

I suggest you add this note to your list, which is especially relevant when the problem relates to "one side" of the keyboard not working right:

OS X: Unable to type while Mouse Keys is enabled - Apple Support

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