I tried both allowing the phone to choose the network automatically, and looking for available networks and choosing one manually. I think I did try T-mobile but can't remember for sure! it was such a pain using my phone in the US I'll never bother w...
Just back from a US trip. Bought a package with US calls and data - couldn't make any US calls. Then bought a data-only package. EXTREMELY unreliable. Worked sometimes then would drop out for days even when i checked AT&T coverage in the area was goo...
Have had same problem and tried above solutions including entering info manually...and trying on a different device. Sometimes I get in and sometimes not. Most reliable is to open my account on my desktop PC. It's really frustrating. Would love to kn...