1. Find "Service selection"
Press the Left selection key.
Select Settings and press the Left selection key.
Select General and press the Left selection key.
Select Network setup and press the Left selection key.
Select Service selection and press the Left selection key.
2. Choose network mode
Select the required network mode and press the Left selection key.
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 the Home key to return to the home screen.