Set display options for contacts ................................................................................................................................................................................................................ 167
Language troubleshooting ........................................................................................................................................................................................................................ 220
Wireless network coverage ............................................................................................................................................................................................................ 221
Turn off a wireless connection .................................................................................................................................................................................................................. 221
Network connection indicators ................................................................................................................................................................................................................. 221
Turn on wireless coverage notification ................................................................................................................................................................................................... 202
About the preferred wireless network list ............................................................................................................................................................................................... 222
Turn off data service ................................................................................................................................................................................................................................... 223
About roaming ............................................................................................................................................................................................................................................ 224
Switch wireless networks manually ......................................................................................................................................................................................................... 224
Wi-Fi connection settings .......................................................................................................................................................................................................................... 224
Advanced Wi-Fi connection settings ....................................................................................................................................................................................................... 227
UMA connection settings .......................................................................................................................................................................................................................... 229
Wireless network coverage troubleshooting .......................................................................................................................................................................................... 229
Power and battery ............................................................................................................................................................................................................................ 231
Turn off your device ..................................................................................................................................................................................................................................... 231
Check the battery power level ................................................................................................................................................................................................................... 231
Reset the device ........................................................................................................................................................................................................................................... 231
Extend battery life ....................................................................................................................................................................................................................................... 231
SIM card ............................................................................................................................................................................................................................................. 233
About the SIM card phone book ............................................................................................................................................................................................................... 165
Load the SIM card phone book ................................................................................................................................................................................................................. 165
Add a contact to your SIM card ............................................................................................................................................................................................................... 165
Change a SIM card contact ....................................................................................................................................................................................................................... 166
Delete a SIM card contact ......................................................................................................................................................................................................................... 166
Store SMS text messages on your SIM card ............................................................................................................................................................................................. 76
About SIM card security ............................................................................................................................................................................................................................ 235
Protect your SIM card with a PIN code ................................................................................................................................................................................................... 235
Change the SIM card PIN code ................................................................................................................................................................................................................ 235