Folks, I'm looking for a little help here. My Rezound seems to be stuck in 1x mode. It will not connect to 4G in locations where I KNOW 4G is available. This is in locations where it HAS previously connected 4G just a few days ago. Network Mode is set to LTE/CDMA (although I've tried toggling that). Mobile network is connected (although I've tried toggling that, too). I've power cycled it. I've toggled through airplane mode and back. Power mode is set to "High Performance". I'm stuck, and don't know what else to try. Any suggestions? Thanks!