I don't know why USMobile is dropping my cell network connection from time to time. Last time it was only the texting that goes down, but today it was both cell data and text (and I never tested placing a call). Once I'm at home with wifi again they will solve whatever issue they are having with my line within 30 minutes or so - and don't get me wrong, once they are told about the problem, the resolution goes really smoothly, even if I, like today, had to switch from chatting on the phone to using a computer (because the phone was rebooting, and rebooting again). So in short, they seem to have some technical issue somewhere that I wish they would resolve once and for all, but the help chat works flawlessly.