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Set your device to turn on and turn off automatically..................................................................................................................................................................... 199
Reset the device..................................................................................................................................................................................................................................... 199
Check the battery power level............................................................................................................................................................................................................. 199
Extend battery life................................................................................................................................................................................................................................. 199
Format the device memory or a media card...................................................................................................................................................................................... 200
View the amount of available memory............................................................................................................................................................................................... 200
Best practice: Optimizing your device performance........................................................................................................................................................................ 200
SIM card........................................................................................................................................................................................................................................ 203
About the SIM card phone book.......................................................................................................................................................................................................... 203
Add a contact to your SIM card........................................................................................................................................................................................................... 203
Copy contacts from your SIM card to your contact list.................................................................................................................................................................... 203
Copy a contact from your contact list to your SIM card.................................................................................................................................................................. 203
Change a SIM card contact.................................................................................................................................................................................................................. 204
Delete a SIM card contact.................................................................................................................................................................................................................... 204
Store SMS text messages on your SIM card...................................................................................................................................................................................... 204
About SIM card security........................................................................................................................................................................................................................ 204
Protect your SIM card with a PIN code.............................................................................................................................................................................................. 204
Change the SIM card PIN code........................................................................................................................................................................................................... 205
Change the display name for a phone number................................................................................................................................................................................. 205
Security......................................................................................................................................................................................................................................... 207
Security basics........................................................................................................................................................................................................................................ 207
Password keeper.................................................................................................................................................................................................................................... 208
Encryption............................................................................................................................................................................................................................................... 210
Memory cleaning................................................................................................................................................................................................................................... 212
Certificates.............................................................................................................................................................................................................................................. 213
PGP keys................................................................................................................................................................................................................................................. 219
Certificate servers.................................................................................................................................................................................................................................. 224
Key stores................................................................................................................................................................................................................................................ 225
Smart cards............................................................................................................................................................................................................................................. 227
Software tokens..................................................................................................................................................................................................................................... 231
About security self-tests....................................................................................................................................................................................................................... 231
Verify security software........................................................................................................................................................................................................................ 231
Third-party application control........................................................................................................................................................................................................... 231
Security troubleshooting...................................................................................................................................................................................................................... 234
Service books and diagnostic reports..................................................................................................................................................................................... 237
Service books.......................................................................................................................................................................................................................................... 237
Diagnostic reports................................................................................................................................................................................................................................. 237
BrickBreaker................................................................................................................................................................................................................................. 241