I just took a trip to a very rural area that didn't have good data coverage when this issue started. Thought it had to do with poor data but now that I am home and on a good network it still is happening. When I turn my phone on it boots as usual but stays on the LTE screen forever. I can hear the phone doing stuff...ie, e-mail notifications etc but the screen does not come on. It can take 2-4 hours before the screen comes on...not sure as the LTE will timeout so I have no idea when it actually comes to life. I did not download any new apps though some did update recently. Dropbox had a recent update and now it is duplicating all my pictures?? I'm wondering if Dropbox could be the culprit? Any help is VERY much appreciated. I don't have a land line so my phone HAS to work!!! NOTE: My Rezound is running latest GB, not rooted, unlocked or anything. Lots of apps but that's all.