Switch wireless networks manually

To switch wireless networks manually, your wireless service plan must include this service and your BlackBerry smartphone must be connected to a GSM or UMTS network.
Your smartphone is designed to switch to an appropriate wireless network automatically when you travel.
  1. On the home screen, click the connections area at the top of the screen, or click the Manage Connections icon.
  2. Click Networks and Connections > Mobile Network.
  3. Change the Network Selection Mode field to Manual.
  4. Click a wireless network.
  5. Press the Menu key > Close.
To connect to your wireless service provider's wireless network again, change the Network Selection Mode field to Automatic.