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
130 Security and data management
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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.