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The volume and brightness keys are not working?

My MacBook Pro 2011 doesn't allow to raise the volume  or use the brightness keys. It seems like they are not working and also the shift key on the left is not working either. I've tried to reset PRAM and SMC but it doesn't solve the problem.

Try with an external keyboard. If that works then there is a problem with your built-in keyboard and you should make  a Genius Bar appointment.

最后更新：2017-08-26 00:43:23

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