1. Find "Service selection"
Press the Navigation key.
Select Settings.
Select General.
Select Network setup.
Select Service selection.
2. Choose network mode
Select the required network mode.
There may be different network modes available depending on where you are. Depending on the network mode selected, your phone 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.