User Guide

Network connection indicators................................................................................................................................................................................................................ 212
Turn on wireless coverage notification.................................................................................................................................................................................................... 213
Change the connection speed for the wireless network....................................................................................................................................................................... 213
About the preferred wireless network list............................................................................................................................................................................................... 213
Add a wireless network to the preferred wireless network list............................................................................................................................................................. 214
Change the order of preferred wireless networks.................................................................................................................................................................................. 214
Delete a wireless network from the preferred wireless network list.................................................................................................................................................... 215
Turn off data service.................................................................................................................................................................................................................................. 215
About roaming............................................................................................................................................................................................................................................ 215
Switch wireless networks manually......................................................................................................................................................................................................... 216
Verify the status of network connections and services......................................................................................................................................................................... 216
Wi-Fi connection settings......................................................................................................................................................................................................................... 216
Advanced Wi-Fi connection settings....................................................................................................................................................................................................... 220
Wireless network coverage troubleshooting........................................................................................................................................................................................... 222
Power, battery, and memory..................................................................................................................................................................................................................... 224
Turn off your device................................................................................................................................................................................................................................... 224
Set your device to turn on and turn off automatically........................................................................................................................................................................... 224
Reset the device......................................................................................................................................................................................................................................... 224
Check the battery power level.................................................................................................................................................................................................................. 224
Extend battery life...................................................................................................................................................................................................................................... 224
Format the device memory or a media card........................................................................................................................................................................................... 225
View the amount of available memory.................................................................................................................................................................................................... 225
Best practice: Optimizing your device performance.............................................................................................................................................................................. 225
SIM card...................................................................................................................................................................................................................................................... 227
About the SIM card phone book............................................................................................................................................................................................................... 227
Add a contact to your SIM card................................................................................................................................................................................................................ 227
Copy contacts from your SIM card to your contact list......................................................................................................................................................................... 227
Copy a contact from your contact list to your SIM card........................................................................................................................................................................ 227
Change a SIM card contact...................................................................................................................................................................................................................... 228
Delete a SIM card contact........................................................................................................................................................................................................................ 228
Store SMS text messages on your SIM card........................................................................................................................................................................................... 228
About SIM card security............................................................................................................................................................................................................................ 229
Protect your SIM card with a PIN code................................................................................................................................................................................................... 229
Change the SIM card PIN code................................................................................................................................................................................................................ 229
Change the display name for a phone number...................................................................................................................................................................................... 229
Security........................................................................................................................................................................................................................................................ 230
Security basics............................................................................................................................................................................................................................................ 230
Password keeper........................................................................................................................................................................................................................................ 231
Encryption................................................................................................................................................................................................................................................... 234