Apple iPhone 11
Select network mode
There may be different network modes available depending on where you are. The network mode influences the data speeds your phone can achieve.
Press Settings.
Press Mobile Service.
Press Mobile Data Options.
Press Voice & Data.
Press the required network mode.
Slide your finger upwards starting from the bottom of the screen to return to the home screen.
1. 1. Find "Voice & Data"
2. 2. Select network mode
3. 3. Return to the home screen