Wi-Fi Technology - Blackberry 9788 User Manual

User Guide
Change your UMA connection preferences, 233
Switch wireless networks manually, 224
Turn on or turn off data service or set roaming options, 223
Switch wireless networks manually, 224
Turn on or turn off data service or set roaming options, 223
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.
Error messages
Data service unavailable
Description
This message appears when you do not have access to data services on your BlackBerry® device.
Possible solutions
Try the following actions:
• Verify that you are in a wireless coverage area.
• Verify that the data service on your device is turned on.
• If you are roaming, verify that you can access data services while you roam.
Related information
Turn on or turn off data service or set roaming options, 223
Turn on or turn off data service or set roaming options, 223

Wi-Fi technology

Depending on your BlackBerry® device model, the Wi-Fi® feature might not be supported.
228
Manage Connections