Samsung GSM1800 - Manual (Page 151)

Access Codes
151
PIN
The Personal Identification Number or PIN (4 to
8 digits) protects your SIM card against
unauthorised use. It is usually supplied with the
SIM card.
If you enter an incorrect PIN three times in
succession, the code is disabled and cannot be used
until you re-enable it by entering the PUK (see
below).
PUK
The 8-digit PUK (PIN Unblocking Key) is required to
change a disabled PIN. The PUK may be supplied
with the SIM card. If not, or you have lost it,
contact your service provider.
To re-enable your PIN:
1. Enter the PUK and press the OK soft key.
2. Enter a new PIN of your choice and press the OK
soft key.
3. When the Confirm New PIN message displays,
enter the same code again and press the OK
soft key.
If you enter an incorrect PUK ten times in
succession, the SIM card becomes invalid. Contact
your service provider for a new card.
To See
activate/deactivate the
PIN Check feature page 112 (Menu 6.6.1).
change the PIN page 112 (Menu 6.6.2).