1. Find "Preferred network type"
Press the Navigation key.
Select Settings.
Select Connections.
Select Preferred network type.
2. Select network mode
Select 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 Disconnect to return to the home screen.