Hello, I have a jailbroken iPhone 3gs 3.1.2 and all my sounds are gone now not really sure what happened. The external speakers still work I can play music through the iPod, but I have no click sound text alerts mail alert or the charging sound. Also the vibration switch doesn't vibrate when I switch it on and off the phone will still vibrate if it's on during the alarm or recieving a call and the phone still rings. In settings it shows that all of my sounds are on. Any help would be greatly appreciated.