Why has all sound gone from iPad?
I have had my iPad 2 since August. It has run pretty flawlessly until Christmas Eve 2011 when it started making static radio noises when I opened some apps (Safari etc). On Christmas Day I was playing Tune In Radio app and the sound stopped completely after 10 minutes. There was no sound from any app, music or video and no notification sounds. I restored the iPad three times from my PC over the next few days. Yesterday the sound came back. Today I noticed that the sound was playing in an app until I rotated the iPad and the sound immediately died again. The "Use Side Switch" is set to mute and I am aware of the glitch with mute vs rotation lock so I've tried that with no effect. There is zero sound from the iPad. It seems like a software problem as it will work from time to time but I'm at a loss as to how to fix it. Can anyone help?
iPad 2, iOS 5.0.1