I cannot connect to a GSM or UMTS network

Try performing the following actions:
  • Verify that your SIM card is inserted in your BlackBerry® device correctly.
  • Verify that you are in a GSM® or UMTS® network area that is supported by your wireless service plan.
  • Verify that the network that you want to connect to appears in your preferred wireless network list.
  • On the Home screen, click the Manage Connections icon. Click Mobile Network Options. Verify that the Network Technology field is not set to 1XEV.
  • On the Home screen, click the Manage Connections icon. Click Mobile Network Options. If the Network Technology field is set to GSM/UMTS, verify that the Network Mode field is set to 3G & 2G.

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