So I'm having an issue with my 5s where it won't connect to LTE. I have tried everything, Reset Network Settings, remove/reinsert the SIM, restore via iTunes and DFU restore via iTunes with no luck. Note that both times I did the restores, I set the phone up as new and put no data back. Are there any other troubleshooting steps I can try with my iPhone before going to Apple? I already compared it to an iPhone 5 on VZW. The 5 had LTE. My 5s just won't connect no matter where I go.