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Maps troubleshooting........................................................................................................................................................................................................................... 180
BlackBerry Messenger............................................................................................................................................................................................................... 181
Contacts.................................................................................................................................................................................................................................................. 181
Groups..................................................................................................................................................................................................................................................... 182
Conversations......................................................................................................................................................................................................................................... 183
Availability.............................................................................................................................................................................................................................................. 186
Applications................................................................................................................................................................................................................................. 189
Switch applications............................................................................................................................................................................................................................... 189
Add, update, or downgrade an application using the application center..................................................................................................................................... 189
Add an application................................................................................................................................................................................................................................. 189
View properties for an application...................................................................................................................................................................................................... 189
Delete a third-party application.......................................................................................................................................................................................................... 189
Receive a device password prompt before you add an application............................................................................................................................................... 190
View the size of an application database........................................................................................................................................................................................... 190
Check for application updates............................................................................................................................................................................................................. 190
About upgrading the BlackBerry Device Software........................................................................................................................................................................... 190
Prerequisites: Upgrading the BlackBerry Device Software over the wireless network.............................................................................................................. 190
Upgrade the BlackBerry Device Software......................................................................................................................................................................................... 191
Return to the previous version of the BlackBerry Device Software............................................................................................................................................... 191
Delete the previous version of the BlackBerry Device Software.................................................................................................................................................... 191
Application troubleshooting................................................................................................................................................................................................................ 191
Wireless network coverage....................................................................................................................................................................................................... 193
Find information about wireless coverage indicators...................................................................................................................................................................... 193
Turn off a wireless connection............................................................................................................................................................................................................. 193
Network connection indicators........................................................................................................................................................................................................... 193
Turn on wireless coverage notification............................................................................................................................................................................................... 194
Change the connection speed for the wireless network................................................................................................................................................................. 194
About the preferred wireless network list.......................................................................................................................................................................................... 194
Add a wireless network to the preferred wireless network list....................................................................................................................................................... 194
Change the order of preferred wireless networks............................................................................................................................................................................ 195
Delete a wireless network from the preferred wireless network list............................................................................................................................................. 195
Turn off data service.............................................................................................................................................................................................................................. 195
About roaming........................................................................................................................................................................................................................................ 196
Switch wireless networks manually.................................................................................................................................................................................................... 196
Verify the status of network connections and services................................................................................................................................................................... 196
Wireless network coverage troubleshooting..................................................................................................................................................................................... 196
Power, battery, and memory..................................................................................................................................................................................................... 199
Turn off your device............................................................................................................................................................................................................................... 199