Silent switch stopped working. Anyone know why?
Last night I set my iPhone's alarm to wake me up. Since then my phone's silent switch will not activate silent mode (doesn't even show the icon). The switch is not loose, cracked, or broken, but no matter which way I switch it, I still hear all my phone's sounds. This is especially awkward because I have Vibrate on so often I don't even recognize my ringtone. I turned Vibrate On in Silent mode in Settings, I double-tapped and held the icon to close the Clock app ... I even upgraded iOS and it made no difference. There must be something simple here, because these things don't just stop working.
I'd appreciate any suggestions. Thanks!
iPhone 3GS, iOS 4.3.3