Originally Posted by Semel

Found this on the net.Maybe give it a try?

The gist:
If you select "Use Side Switch to:" lock rotation when previously it was set to Mute, and your side switch was in the mute position when you switch the toggle from mute to rotation, it thinks that it's still on mute.

Anyways, the solution is just to flip the switch to the unmute position, go into settings and select "Use side switch to: MUTE" (then switch it back to lock rotation if you'd like, BUT don't play w/ the side toggle while doing so).

Since I updated I've been having trouble with sound in certain applications. I came across this post and wanted to let you know, you solved my issue!! Thank You!

Thanks Guys. This really works.

i have the ipad gen1. updated it to IOS 5.1.1 and then lost the sound.

Solution -

Play with your side toggle switch and see what icon comes on your screen. if you see the 'circular arrow', it means the switch is un/locking your screen to turn around. If it shows the bell, it would display it as bell with diagonal line on it - meaning the sound is off. Simple - just push the switch the other side and the sound will be on. But if you see the circular arrow, do the following:

go to Settings>General> Use Side Switch to:

If the tick mark is on Mute, then first toggle ipad's side switch. A bell will come up on your screen when the switch will turn the sound on. The moment that happens, go to the Use Side Switch selection and check on Lock Rotation.

now the toggle switch will be used for its inital purpose - locking and unlocking the screen rotation and not to mute or unmute your ipad.

All the best.

Hi I recently updated to IOS 6.1.2 and I have lost audio for all my apps the use audio and well as the ability to play music, every time I press play it the icon quickly changes from play to pause/ stop I am hoping the this is a software bug.