 
Phone and SIM
PIN code request
—When active, the code is requested
each time the device is switched on. Deactivating the 
personal identification number (PIN) code request may 
not be allowed by some SIM cards. See ‘Glossary of PIN 
and lock codes’, p. 120.
PIN code
,
PIN2 code
, and
Lock code
—You can change the
lock code, PIN code, and PIN2 code. These codes can only 
include the numbers from 0 to 9. If you forget any of 
these codes, contact your service provider. See ‘Glossary 
of PIN and lock codes’, p. 120.
Avoid using access codes similar to the emergency 
numbers to prevent accidental dialing of the emergency 
number.
Autolock period
—You can set an autolock period, a
time-out after which the device automatically locks. To 
turn off the autolock period, select 
None
.
To unlock the device, enter the lock code.
When the device is locked, calls still may be possible to 
the official emergency number programmed into your 
device.
Tip! To lock the device manually, press
. A list of
commands opens. Select
Lock phone
.
Lock if SIM 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 recognized 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 unauthorized 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.
 
Settings
121
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 unauthorized 
use. The factory setting for the lock code is 12345. To 
avoid unauthorized 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.