1 Find "Network mode"
Slide your finger downwards starting from the top of the screen.
Press the settings icon.
Press Mobile networks.
Press Network mode.
2 Choose 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
Press the Home key to return to the home screen.