I can't connect to a GSM or UMTS network
Try the following actions:
• Verify that your SIM card is inserted in your BlackBerry smartphone correctly.
User Guide
Manage Connections
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• 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 Networks and Connections > Mobile Network. If the
Network Technology field is set to GSM/UMTS, verify that the Network Mode field is set to one of the following: 2G &
3G or 2G & 3G/4G or 2G & 3G/H+. The options that appear in the Network Mode field depend on your wireless service
provider.