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.
1. To restrict calls from your device, select
Options
>
New SIM contact
and enter the contact name and
phone number to the list of numbers to which calls
are allowed, or select
Add from Contacts
to copy
the contact from Contacts. To restrict calls by a
country prefix, enter the country prefix in the list of
numbers. All phone numbers to which calls are
allowed must start with this country prefix.
2. Select
Options
>
Activate fixed dialling
. You
need your PIN2 code to activate and deactivate
fixed dialling or edit your fixed dialling contacts.
Contact your service provider if you do not have the
code. To cancel the service, select
Options
>
Deactivate fixed dialling
.
Tip:
To send text messages to the SIM contacts
while the fixed dialling service is active, you
need to add the text message centre number to
the fixed dialling list.
Certificate manager
Select
Menu
>
Tools
>
Settings
>
General
>
Security
>
Certificate management
.
Digital certificates are used to verify the origins of
software but do not guarantee safety. There are four
different types of certificates: authority certificates,
personal certificates, trusted site certificates, and
device certificates. During a secure connection, a server
may send a server certificate to your device. Upon
receipt, it is checked through an authority certificate
stored in your device. You receive notification if the
identity of the server is not authentic or if you do not
have the correct certificate in your device.
Download a certificate from a web site, or receive a
certificate as an e-mail attachment, or as a message
sent through a Bluetooth or infrared connection.
Certificates should be used when you connect to an
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