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■ Security
When security features that restrict calls are in use (such as call restricting,
closed user group, and fixed dialing), calls may be possible to the official
emergency number programmed into your device.
Select Menu > Settings > Security and from the following options:
PIN code request and UPIN code request — to set the phone to ask for your PIN or
UPIN code every time the phone is switched on. Some SIM cards do not allow the
code request to be turned off.
PIN2 code request — to select whether the PIN2 code is required when using a
specific phone feature which is protected by the PIN2 code. Some SIM cards do
not allow the code request to be turned off.
Call restrictions — to restrict calls to and from your phone (network service). A
restricting password is required.
Fixed dialing — to restrict your outgoing calls to selected phone numbers if this
function is supported by your SIM card
Closed user group — to specify a group of people whom you can call and who can
call you (network service)
Security level > Phone — to set the phone to ask for the security code whenever a
new SIM card is inserted into the phone. If you select Memory, the phone asks for
the security code when the SIM card memory is selected, and you want to change
the memory in use.
Access codes — to change the security code, PIN code, UPIN code, PIN2 code, or
restricting password
Code in use — to select whether the PIN code or UPIN code should be active
Authority certificates or User certificates — to view the list of the authority or
user certificates downloaded into your phone. See "Certificates," p. 68.
Security module settings — to view Security module details, activate Module PIN
request, or change the module PIN and signing PIN. See also "Access codes," p. 10.
■ Phone software updates
Your service provider may send phone software updates over the air directly to
your device. This option may not be available, depending on your phone.
Warning: If you install a software update, you cannot use the device, even to
make emergency calls, until the update is completed and the device is
restarted. Be sure to backup data before accepting a software update.