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the password. Not all memory cards support password
protection.
To remove the memory card password, select Options >
Memory card password > Remove. When you remove
the password, the data on the memory card is not
protected against unauthorized use.
To open a locked memory card, select Options > Unlock
memory card. Enter the password.
If you cannot recall the password to unlock a locked
memory card, you may reformat the card, in which case
the card is unlocked and password removed. Formatting
a memory card destroys all data stored on the card.
Encryption
Select Menu > Ctrl. panel > Phone > Encryption.
Encrypt your device or memory card to prevent outsiders
from accessing your important information.
Encrypt device memory or
memory card
To encrypt the device memory, select Phone memory.
To encrypt the memory card, select Memory card and
from the following:
• Encrypt without saving key — Encrypt the memory
card without saving the encryption key. If you select
this option, you cannot use the memory card in other
devices, and if you restore factory settings, you cannot
decrypt the memory card.
• Encrypt and save key — Encrypt the memory card and
save the key manually in the default folder. For security,
store the key to a safe place outside the device. For
example, you can send the key to your computer. Enter
a pass phrase for the key and a name for the key file.
The pass phrase should be long and complex.
• Encrypt with restored key — Encrypt the memory
card with a key you have received. Select the key file
and enter the pass phrase.
Decrypt device memory or
memory card
Always remember to decrypt the device memory and/or
the memory card before updating the device software.
To decrypt the device memory, select Phone memory.
To decrypt the memory card without destroying the
encryption key, select Memory card > Decrypt.
To decrypt the memory card and destroy the encryption
key, select Memory card > Decrypt and turn off
encryption.
Fixed dialing
Select Menu > Contacts and Options > SIM
numbers > Fixed dial contacts.
With the fixed dialing service, you can restrict calls from
your device to certain phone numbers. Not all SIM cards
support the fixed dialing service. For more information,
contact your service provider.
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Security and data management