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Question: Bug within Mac OS Sierra?

Since updating my Mac to OS Sierra I’ve been having problems. Firstly my keyboard is not functioning as it should be. It will all of a sudden start typing symbols, caps lock won’t work neither will space and sometimes other keys won’t work. Caps lock light turns on when using a USB keyboard. But sometimes symbols will stil type using that. iTunes won’t play music sometimes too. It will just have a message about clearing the next list of songs. When you click okay it still won’t play. I have erased the hard drive, and re installed Mac OS Sierra. I have checked all settings for keyboard. HELP

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Dec 10, 2017 5:24 AM in response to munkymajik In response to munkymajik

How can my keyboard be faulty all of a sudden? I hadn’t been using it for about a month as I was waiting on my new Mac charger. And what about my iTunes playing up? It happens as soon as the keyboard starts typing symbols

Dec 10, 2017 5:24 AM

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Dec 10, 2017 5:35 AM in response to LizSharma In response to LizSharma

In iTunes, right-click on the song, select "Song Info".


In the window go to the last tab, "File".


Check the location of the file, right-click on the file name and select "Show in Finder"


Tell me what it says.


Does it happen on the onscreen keyboard if you have no keyboard connected?

Dec 10, 2017 5:35 AM

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Dec 10, 2017 5:40 AM in response to munkymajik In response to munkymajik

I have just shut down the Mac so will have to answer that in the morning.


As for the keyboard yes. Connected or not it will still continue to type symbols. It will even show you letters on the onscreen keyboard but will still continue to type symbols.

Dec 10, 2017 5:40 AM

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Dec 10, 2017 6:44 AM in response to LizSharma In response to LizSharma

Next time you turn on your mac, go to About This Mac > System Report... > USB


And see if there's anything weird.


Also check System Settings > Keyboard > Input Sources


Also check the other tabs for anything unusual.


If you don't find anything consider running https://EtreCheck.com


It's free and doesn't ask permission/install anything. It will run a system report looking for anything unusual.


If you copy/paste the results here we can check for problems. Nothing personal is shared.


I think someone from these forums wrote the program.

Dec 10, 2017 6:44 AM

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Dec 10, 2017 7:37 AM in response to LizSharma In response to LizSharma

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

If your wireless or USB keyboard doesn't work


Keyboard Doesn’t Work

Dec 10, 2017 7:37 AM

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Question: Bug within Mac OS Sierra?