After pwning my phone a few days ago, the internal speaker, headphone jack, and ear piece have stopped working. I now get no sound through all of these and have tried the unplug/plug in headphone trick. Is there anything else?

reset all settings

Originally Posted by Babo

reset all settings

Sweet, it worked! How frequently does this occur?

Originally Posted by Kasakato

Sweet, it worked! How frequently does this occur?

It normally just happens after some jailbreak.