1 Find "Mobile Network"
Slide your finger downwards starting from the top of the screen.
Press Networks and Connections.
Press Mobile Network.
2 Select network mode
Press the field below "Network Mode".
Press the required network mode.
There may be different network modes available depending on where you are. If you set your phone to automatic network selection, it will always find the network with the highest data speed and best signal.
3 Return to the home screen
Slide your finger upwards starting from the bottom of the screen to return to the home screen.