To unlock your device, select Unlock, enter the lock code, andselect OK.To change the lock code, select > Tools > Settings andGeneral > Security > Phone and SIM card. Enter the oldcode and then the new code twice. The new code can be4-255 characters long. Both letters and digits can be used,and both uppercase and lowercase letters are possible.Write down the new code, and keep it secret and in a safeplace separate from your device. If you forget the lock codeand your device is locked, you must take the device to a Nokiaauthorized service facility and additional charges may apply.To unlock the device, the software must be reloaded, and thedata you have saved in the device may be lost.You can also lock the device remotely by sending a textmessage to the device. To enable remote locking, and todefine the text for the message, select > Tools >Settings and General > Security > Phone and SIMcard > Remote phone locking > Enabled. Enter theremote lock message, and confirm the message. The messagemust be at least 5 characters long. Write down the text, asyou may need it later.Memory card securitySelect > Office > File mgr..You can protect a memory card with a password to preventunauthorized access. To set a password, select Options >Memory card password > Set. The password can be up to8 characters long and is case-sensitive. The password isstored in your device. You do not need to enter it again whileyou use the memory card on the same device. If you use thememory card on another device, you are asked for thepassword. Not all memory cards support passwordprotection.To remove the memory card password, select Options >Memory card password > Remove. When you remove thepassword, the data on the memory card is not protectedagainst unauthorized use.To open a locked memory card, select Options > Unlockmemory card. Enter the password.If you cannot recall the password to unlock a locked memorycard, you may reformat the card, in which case the card isunlocked and password removed. Formatting a memory carddestroys all data stored on the card.Back up dataSelect > Office > File mgr..It is recommended that you back up the device memoryregularly to a memory card or a compatible computer.To back up information from the device memory to a memorycard, select Options > Back up phone memory.To restore information from the memory card to the devicememory, select Options > Restore from mem. card.You can also connect your device to a compatible computerand use Nokia PC Suite to back up data.Be careful when you connectYour device supports several connectivity methods and, likecomputers, may be exposed to viruses and other harmful© 2004 Nokia. All rights reserved.50