New BlackBerry users may find their phone intimidating at first. A BlackBerry can appear to be complex, simply because it has so many features. But the truth is that the BlackBerry hardware and software is elegantly designed, and troubleshooting problems is very easy -- even when those problems are with your mobile network connection. Here are some basic steps to take if you cannot connect to your carrier's network.
When you first notice that you cannot connect to your carrier's wireless network, try to find out if it is a device problem or if it is your carrier's problem. You can do this by searching online (if you have access to a computer), or by talking to other people on the same carrier.
If you determine that it is not a network problem, but a problem specific to your phone, open the Manage Connections menu and disconnect from the Mobile Network, Wi-Fi, and Bluetooth by unchecking the boxes next to them. Once you are completely disconnected from all networks, reconnect to the Mobile Network only.
3. If you still cannot connect to your wireless network, or if you connect and still cannot make or receive phone calls and transfer data, perform a Soft Reset.
If your connection is not restored when the BlackBerry finishes booting up, perform a Hard Reset. Before you replace the BlackBerry's battery remove the BlackBerry's SIM card and replace it to make sure that it is seated correctly. Older CDMA BlackBerrys may not have a SIM card, so this does not apply to them.
After you replace the SIM and the battery and the BlackBerry boots up, if the device still cannot connect to the network normally, contact your carrier for additional assistance.
These basic troubleshooting steps can solve most BlackBerry mobile network connection issues that are not a result of a regional or nationwide carrier outages. If the problem is a more complex device issue, your carrier's technical support will guide you through more in-depth troubleshooting.