Wireless Network Coverage Troubleshooting - Blackberry 9520 User Manual

User Guide
Depending on your wireless service plan, this feature might not be supported.
1. On the Home screen or in a folder, click the Options icon.
2. Click Mobile Network.
3. Press the Menu key.
4. Click My Preferred Network List.
5. Highlight a wireless network.
6. Press the Menu key.
7. Click Move.
8. Click the new location.
9. Press the Menu key.
10. Click Save.

Wireless network coverage troubleshooting

I cannot connect to a wireless network
Depending on your wireless network, some features might not be supported.
Try performing the following actions:
• Verify that your SIM card is inserted in your BlackBerry® device correctly.
• If you are trying to connect to a GSM network, verify that your BlackBerry® device is in global roaming mode and that your SIM card
is inserted in your device correctly.
• Verify that you have turned on the connection to the wireless network.
• Verify that you are connected to your wireless service provider's network. If you switched wireless networks manually, your device
remains connected to that wireless network until you select your wireless service provider's network again.
• If you have set a specific speed for wireless network connections, verify that you are in a wireless coverage area that supports the
connection speed.
• If your wireless service provider supports UMA, verify that your connection preference is not set to Wi-Fi Only.
Related topics
Turn off the connection to the wireless network, 233
Switch wireless networks manually, 236
I cannot synchronize a certificate
Verify that the certificate synchronization tool of the BlackBerry® Desktop Manager is installed on your computer. If the certificate
synchronization tool is not installed on your computer, re-install the BlackBerry® Desktop Software. For more information about installing the
BlackBerry Desktop Software, see the printed documentation that came with your BlackBerry device.
I cannot connect to a GSM or UMTS network
Try performing the following actions:
Wireless network coverage
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