Apple Extended Keyboard w/mac OS High Sierra

On a 2012 mid MacBook Pro I'm running High Sierra.

When I updated to it the numbers and period (.) on my Apple Extended Keyboard ceased to work. The other keys work fine.

I have tried both keyboards on other computers.

Any suggestion on I correct this problem?

Apple Extended Keyboard-OTHER

Posted on Oct 11, 2018 3:08 PM

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Question marked as Top-ranking reply

Posted on Oct 11, 2018 7:22 PM

It worked on other computers?


Restart the computer holding down the command - option/alt - P - R keys before the gray screen appears. Continue to hold until you hear the startup chime for the second time. You may need to do this 2-3 times.

Reset NVRAM/PRAM


Try a SMC reset. The article covers when this is required, but doing this will not affect anything.


Reset SMC

1 reply
Question marked as Top-ranking reply

Oct 11, 2018 7:22 PM in response to medoodle

It worked on other computers?


Restart the computer holding down the command - option/alt - P - R keys before the gray screen appears. Continue to hold until you hear the startup chime for the second time. You may need to do this 2-3 times.

Reset NVRAM/PRAM


Try a SMC reset. The article covers when this is required, but doing this will not affect anything.


Reset SMC

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Apple Extended Keyboard w/mac OS High Sierra

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