I have had my Triumph unexpectedly while in my pocket or in one case in my car after turning off the engine (Ford Sync equipped) start playing music at full volume; most cases I have to remove the battery to stop it and in some cases I can pause the playing but the only way to get back to normal is to remove the battery. If I shut down the phone it gets stuck at the "Bye" screen and will eventually deplete the battery. Reading the forums I do see users with different model,MFG phones having similar issues I am asuming that this is an OS issue? Am I correct? Also my phone will randomly restart it's self while in my pocket I will hear the "Virgin Mobile" boot sound which makes all aware that it is happening. It's to the point that I can't keep music on the phone since It plays it randomly and I usually cant easily shut it off as described above. FYI: This is my third Triumph First one did same thing, Second one had a bad camera module failed to focus only had it for a day.Purchased at Target thankfully great return /exchange policy.