Nokia N93i

Page 118
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Settings
118
To unlock the device, enter the lock code.
When the device is locked, calls 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.
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.
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 (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.
PUK and PUK2 codes—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 service provider whose USIM card 
is in your device.
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