I don't have LTE in my area and some weird things happen to my signal bars. When I have LTE off and WiFi on I only get 3 bars of 4G. When WiFi is off I get 5 bars of 4G. When I'm in an area with LTE I always have 5 bars with or without WiFi. Anyone have any ideas? I live and work by 2 cell towers, I've restored as new and reset network settings. Even got a new nano sim card, still had a few dropped calls - never happened before in my area with any iPhone I've had.