I'm on my third tb and my second sim card. This phone has a hard time getting its data back when.its transitioning from wifi or 4g. At first I thought it was the phone so I had it replaced . While that was in.the works I convinced the Verizon reps that the sim card might be faulty so we switched that out too. it was working ok for a while and recently started doing it again. I'm about ready to give up on this phone and get vzw to trade me into another phone. I did find however that taking the battery cover on and off always restored the data connection but I feel I shouldn't have to go thru that. Anyone here switch to another phone for that same problem ?