Puk; Pin2 - Samsung SGH-x427 User Manual

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.
When you enter an incorrect PUK ten times in succession,
the SIM card becomes invalid. Contact your service
provider for a new card.

PIN2

The PIN2 (4 to 8 digits), supplied with some SIM cards, is
required to access specific functions, such as setting the
maximum cost of a call. These functions are available if
supported by your SIM card.
If you enter an incorrect PIN2 three times in succession,
the code is disabled and you cannot access the functions
until you re-enable it by entering the PUK2.
To change the PIN2, see page 99 (Menu 4.5.7).
Access Codes
143