Apple iPhone 12
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.
To turn on automatic switch between 5G and 4G, press 5G Auto.
To turn on use of 5G primarily, press 5G On.
To use 4G only, press 4G.
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