Samsung SGH-X105NBATMB - Manual (Page 111)

Access C odes
108
PIN
The Personal Identification Number or PIN (4 to 8 digits)
protects your SIM card against unauthorized 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 (Personal 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, proceed as follows.
1. Key in 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 is displayed, key in
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... Refer to...
Activate/deactivate the PIN
Check feature Page 83
(
Menu 5.5.1 ).
Change the PIN Page 84
(
Menu 5.5.2 ).