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Brandon M.
Brandon M., Mac Support Specialist
Category: Mac
Satisfied Customers: 6977
Experience:  10+ Years Mac Support as contractor and currently an IT Manager for law firm
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Shut down the computer. • Unplug the computers power cord. •

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Shut down the computer.
• Unplug the computer's power cord.
• Wait fifteen seconds.
• Attach the computer's power cord.
• Locate the following keys on the keyboard: Command, Option, P, and R. You will need them in next step
• Wait five seconds, then press the power button to turn on the computer.
• Press and hold the Command-Option-P-R keys before the gray screen appears.
• Hold the keys down until the computer restarts.
• Release the keys.

Brandon M. :

Hello and thank you for contacting us, a paid expert support site. My name is XXXXX XXXXX I'd be glad to assist you with your issue.

Brandon M. :

Using a wireless keyboard is not recommended for this because the keyboard doesn't connect immediately like a wired keyboard would. But, you can try anyway. On a PC keyboard, the Alt key is Option and the Windows key is Command.

Brandon M. :

If you are only getting sound from your headphones and nothing when you unplug them, try those steps first. If it still doesn't help, try inserting and removing the headphones a few times. There is a trigger inside the headphone jack that might be stuck,fooling the computer into thinking that the headphones are plugged in when they are not.



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