Blackberry 3980228 manual 226

About wireless coverage indicators	213
Network connection indicators	213
Turn on wireless coverage notification	214
About the preferred wireless network list	215
Add a wireless network to the preferred wireless network list	215
Change the order of preferred wireless networks	215
Delete a wireless network from the preferred wireless network list	216
Turn off data service	216
About roaming	217
Switch wireless networks manually	217
Verify the status of network connections and services	217
Wi-Fi connection settings	218
Advanced Wi-Fi connection settings	221
UMA connection settings	223
Wireless network coverage troubleshooting	224
Power, battery, and memory	226
Turn off your device	226
Set your device to turn on and turn off automatically	226
Reset the device	226
Check the battery power level	226
Extend battery life	226
Format the device memory or a media card	227
View the amount of available memory	227
Best practice: Optimizing your device performance	227
SIM card	229
About the SIM card phone book	229
Add a contact to your SIM card	229
Copy contacts from your SIM card to your contact list	229
Copy a contact from your contact list to your SIM card	229
Change a SIM card contact	230
Delete a SIM card contact	230
Store SMS text messages on your SIM card	230
About SIM card security	231
Protect your SIM card with a PIN code	231
Change the SIM card PIN code	231
Change the display name for a phone number	231
Security	232
Security basics	232
Password keeper	233