Blackberry 8700 User Manual page 8

Language troubleshooting...........................................................................................................................................................................................................................192
Wireless network coverage..............................................................................................................................................................................................................193
Find information about wireless coverage indicators.............................................................................................................................................................................193
Turn off the connection to the wireless network......................................................................................................................................................................................193
Turn on wireless coverage notification......................................................................................................................................................................................................176
About the preferred wireless network list.................................................................................................................................................................................................193
Add a wireless network to the preferred wireless network list..............................................................................................................................................................193
Change the order of preferred wireless networks...................................................................................................................................................................................194
Delete a wireless network from the preferred wireless network list.....................................................................................................................................................194
Turn off data service.....................................................................................................................................................................................................................................195
About roaming...............................................................................................................................................................................................................................................195
Switch wireless networks manually...........................................................................................................................................................................................................195
Wireless network coverage troubleshooting............................................................................................................................................................................................196
Power, battery, and memory............................................................................................................................................................................................................197
Turn off your device......................................................................................................................................................................................................................................197
Set your device to turn on and turn off automatically.............................................................................................................................................................................197
Check the battery power level.....................................................................................................................................................................................................................197
Reset the device............................................................................................................................................................................................................................................197
Extend battery life.........................................................................................................................................................................................................................................197
View the amount of available memory on your device...........................................................................................................................................................................198
Best practice: Optimizing your device performance...............................................................................................................................................................................198
SIM card...............................................................................................................................................................................................................................................199
About the SIM card phone book.................................................................................................................................................................................................................136
Add a contact to your SIM card .................................................................................................................................................................................................................136
Copy contacts from your SIM card to your address book.......................................................................................................................................................................136
Copy a contact from your address book to your SIM card......................................................................................................................................................................136
Change a SIM card contact..........................................................................................................................................................................................................................137
Delete a SIM card contact............................................................................................................................................................................................................................137
Store SMS text messages on your SIM card...............................................................................................................................................................................................57
About SIM card security..............................................................................................................................................................................................................................200
Protect your SIM card with a PIN code......................................................................................................................................................................................................201
Change the SIM card PIN code...................................................................................................................................................................................................................201
Change the display name for a phone number........................................................................................................................................................................................201
Security...............................................................................................................................................................................................................................................203
Security basics..............................................................................................................................................................................................................................................203
Password keeper........................................................................................................................................................................................................................................... 2 04
Encryption.....................................................................................................................................................................................................................................................206
Memory cleaning..........................................................................................................................................................................................................................................208