there is no sound

I have the same problem!

This is how you fix the issue http://support.apple.com/kb/TA24826?viewlocale=en_US if you have your ichat set up reply with your name and I will add you and fix it.

Turning off bluetooth worked for me

Turn off the computer and turn it back on, and it's working again, I've left bluetooth off now anyway because I don't need it, but that fixed it for me!

I had cleared PRAM, inserted the speaker jack several times, and tried everything else suggested in other articles, and nothing worked, besides turning off Bluetooth..

Me too!! Pretty hard to call customer support when they can't hear you!

I can show you how to fix it.

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Just try restarting it was the last thing I thougth to do and it fixed it instantly.

My ipad2 thought it was hooked up to a dock when it was not... Check by clicking onto the airplay icon next to the sound slider, if dock connector is checked, your ipad thinks it is playing through external speakers. I connected my ipad to the original apple connector for charging, unplugged it, and the sound came right back! Make sure its an Apple connector.

my sound on my phone wont work either and ive tried fixing it by retoring it turning it off nothing works 😠😢

If its your computer, laptop, you will have to take it in to the apple store and they will send it back to the manufacturer. They will replace your output card, and anything else they find wrong with your computer for around $500. It will be worker better than new when you get it back. :)

Wow! Turning off the Bluetooth and rebooting worked for my Macbook. Thanks.

Your 'Airplay ' or 'Apple TV' mode is on. Shut it off and switch back to iPad mode.

Your 'Airplay ' or 'Apple TV' mode is on. Shut it off and switch back to iPad mode.

Settıngs, sounds, lock sounds: Off

After rebooting to original settings, side switch was changed from screen rotation lock, to mute. Changed setting back to rotation lock, and sounds returned.

Turn the computer all of the way off then back on, it really works.