Why is my LTE not working?

Also Reset your Network Settings , go to Settings > General > Reset> Reset Network Settings. This refreshes your network. Make sure your Device Software Is Updated to the latest version, this will help with resetting your device and connection.

There’s a few things to look at. Try Settings > General > Reset (bottom) > Reset Network Settings (enter your phone code and red button). This will refresh the connection on an iPhone. If still no change, try to remove and reinsert the SIM card (on side, small tray).

Restart your device Simply press and hold the power button of your smartphone and then tap Restart. Wait a couple of seconds and turn it back on. Check your status icon, but also test the speed of your LTE connection by opening some websites or downloading some smaller apps.