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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
Security level > 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, PIN2 code, or
barring password
Code in use — to select whether the PIN code or UPIN code is active
Authority certificates or User certificates — to view the list of the
authority or user certificates downloaded into your phone. See
“Certificates,” p. 105.
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. 9.
■ Phone 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 back up data
before accepting a software update.
Settings
To allow or disallow phone software updates, select Menu > Settings >
Configuration > Device manager settings >
Service prov. sw updates and from the following options:
Always allow — to perform all software downloads and updates
automatically
Always reject — to reject all software updates