Until yesterday, my Rezound worked perfectly. No problems or complaints. However, yesterday it would not connect to any data coverage. After turning it off and back on, disconnecting data and reconnecting, still nothing. I was finally able to get a 3G signal when I put it on CDMA mode only (vs. LTE & CDMA). But once the phone sleeps it disconnects from 3G and I have to switch back to LTE/CDMA and then back to CDMA only to get it to reconnect to 3G. So something about it trying to search for 4Glte is blocking it's ability to find 3G. I have it set to LTE/CDMA, connected to data, and the phone is set on 'High Performance'. Any help please?