Is there a way to make the 8120 stay manually on the T-Mobile network and not ever pick AT&T? In NY I have low signal on T-Mobile and than it will change to AT&T and say "SOS". That is because in the area where I am, I don't think T-Mobile has a roaming agreement with AT&T - basically the device isn't registering on AT&T's network.
So how can you make it never pick AT&T? Because right now on manual selection, it won't stay on T-Mobile.
So how can you make it never pick AT&T? Because right now on manual selection, it won't stay on T-Mobile.