IPhone volume isn't working?
I have the iPhone 4s and the volume just isn't working at all. When I adjust the volume with the buttons the thing isn't popping up and when I double click the home button the thing there to adjust the volume isn't even there. Even when I go to music the volume thing isn't there either. I tried fixing it by restarting the network settings, it worked but only for 2 seconds and it disappeared again. How do I fix this?