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You can set your phone to select a network automatically or you can select a network manually. If you select a network manually, your phone will lose network connection when the selected network is out of reach.
1. Find "Select network"
Press the Navigation key.
Select Network setup.
Select Select network.
2. Select network
If you want to select a network automatically, select Automatic.
If you want to select a network manually, select Manual.
Select Select network and your phone will search for available networks.
Select the required network.
3. Return to the home screen
Press Disconnect to return to the home screen.