I've got a T-Mobile HTC One that I ported over to Straight Talk today (T-Mobile sim). I've got LTE and I can make calls but I can't receive calls or texts and I can't seem to send texts either (they show as sent on my phone but the receiving party never gets them). I'd call straight talk but they're closed. Any advice?
XDA Developers was founded by developers, for developers. It is now a valuable resource for people who want to make the most of their mobile devices, from customizing the look and feel to adding new functionality. Are you a developer?