Switching Network Modes
1.Touch the Home Key > 
> Settings > Wireless & networks > Mobile networks > Network Mode.
2.Select one of the following: GSM/WCDMA AUTO, WCDMA only or GSM only.
NOTE: To save battery, you can tick the Use only 2G networks check box to use only GSM network.
Switching Networks
1.Touch the Home Key > 
> Settings > Wireless & networks > Mobile Networks > Network operators. The phone automatically searches for all available networks.
2.Touch a network to register manually, or touch Select automatically to select preferred network automatically.
Setting Access Point Names
To connect to the Internet you can use the default Access Point Names (APN). And if you want to add a new APN, please contact the service provider to find out more.
1.Touch the Home Key > 
> Settings > Wireless & networks > Mobile networks > Access Point Names.
2.Touch the Menu Key > New APN.
3.Set the necessary parameters. (See Getting Connected to the Internet - Adding a New GPRS/EDGE/3G Connection in this guide.)
4.Touch the Menu Key > Save.
Security Settings
Here’s how to protect your phone and SIM card from unauthorized use.
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