Certificate Management - Nokia 002D2Q8 User Manual

N series

Table of Contents

Enlarged version

Lock if SIM card

changed—You can set the device to ask

for the lock code when an unknown SIM card is inserted

into your device. The device maintains a list of SIM cards

that are recognised as the owner's cards.

Closed user

group—You can specify a group of people to

whom you can call and who can call you (network service).

When calls are limited to closed user groups, calls may be

possible to the official emergency number programmed

into your device.

Confirm SIM

services—You can set the device to display

confirmation messages when you are using a SIM card

service (network service).

Glossary of PIN and lock codes

If you forget any of these codes, contact your service

provider.

Personal identification number (PIN) code—This code

protects your SIM card against unauthorised use. The PIN

code (4 to 8 digits) is usually supplied with the SIM card.

After three consecutive incorrect PIN code entries, the

code is blocked, and you need the PUK code to unblock it.

UPIN code—This code may be supplied with the USIM card.

The USIM card is an enhanced version of the SIM card and

is supported by UMTS mobile phones.

PIN2 code—This code (4 to 8 digits) is supplied with some

SIM cards, and is required to access some functions in your

device.

Lock code (also known as security code)—This code (5

digits) can be used to lock the device to avoid unauthorised

use. The factory setting for the lock code is 12345. To

avoid unauthorised use of your device, change the lock

code. Keep the new code secret and in a safe place

separate from your device. If you forget the code, contact

your service provider.

Personal unblocking key (PUK) code and PUK2 code—These

codes (8 digits) are required to change a blocked PIN code

or PIN2 code, respectively. If the codes are not supplied

with the SIM card, contact the operator whose SIM card is

in your device.

UPUK code—This code (8 digits) is required to change a

blocked UPIN code. If the code is not supplied with the

USIM card, contact the operator whose USIM card is in

your device.