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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 > Tools > 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 dialling
Select Menu > Communic. > Contacts > Options >
SIM contacts > Fixed dial contacts.
With the fixed dialling service, you can restrict calls
from your device to certain phone numbers. Not all SIM
cards support the fixed dialling service. Contact your
service provider for more information.
When fixed dialling is activated, calls may be possible
to the official emergency number programmed into
your device.
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Security and data management