Nokia C2-05.1, User Manual, Page: 18 / 72

some SIM cards is required to access certain services. If you
enter the PIN or PIN2 code incorrectly three times in
succession, you are asked for the PUK or PUK2 code. If you
do not have them, contact your service provider.
The module PIN is required to access the information in the
security module of your SIM card. The signing PIN may be
required for the digital signature. The barring password is
required when using the call barring service.
To set how your device uses the access codes and security
settings, select Menu
>
Settings
>
Security .
The personal unblocking key (PUK) code and the universal
personal unblocking key (UPUK) code (8 digits) are required
to change a blocked PIN code and UPIN code, respectively.
The PUK2 code (8 digits) is required to change a blocked
PIN2 code. These codes are not supplied with the SIM card.
Contact your local service provider for the codes.
Lock the keys
To avoid accidentally making a call when your device is in
your pocket or bag, lock the keys.
Close the slide, and select
Lock .
Unlock the keys and screen
Select Unlock , and press * .
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