I'm befuddled, I upgraded to the new T-Mo OS last night. Everything went fine and dandy. I usually put the phone on silent when I hit the sack so it doesn't wake me up but during the day I noticed none of the sound works now. Is there a way to fix this or am I boned?
Try pulling out the battery while the device is on and wait five seconds or so and replace, then power on. This perfoms a hard reset. Should fix the issue.