I just bought a Samsung Galaxy S3 originally with sprint today and Flashed it to Ntelos (frawg) Wireless since I already have an account with them. Im having a problem with the messaging. The store that flashed it advised me to use the Ntelos MMS app for picture messages and that i cannot have the factory messaging app running or else it wouldn't work. The problem I am having is the Ntelos App does not sync to my contacts so I dontt know who is messaging me. Any advice on what to do?