From the Home screen, tap Settings.
Tap Cellular.
Tap Cellular Data Options.
Tap Enable LTE.
Tap Off.
This setting will disable LTE.
Tap Data Only.
This setting allows cellular data usage, but not voice calls over LTE.
Tap Voice & Data.
This setting allows voice calls and cellular data usage over LTE.
Tap the Back icon to save your changes.
You've completed the steps!
