Hello, my name is Willyam and I am having a heck of a time my Galaxy 5. The problem is my phone keeps giving me a prompt: No signal found for mobile networks. But when I have wifi my phone works fine. Is this a common problem? Thanks in advance
@willyam37, have you taken notice what your signal levels are in your area for the 3G/4G service? It is quite possible that you are in an area where the carrier you have chosen (T-Mobile), may have limited coverage and so the phone is telling you that it can't see signals from the towers. Since you have WIFI, it will work while in range of WIFI but if WIFI is turned off the phone will complain that it has no signal.