PUK and PUK2 codes
The PUK (Personal Unblocking Key) may be supplied with
your SIM card. If not, contact your service provider for the
code. The code is required to change a blocked PIN code.
If you enter a wrong PUK code ten times in succession, the
SIM card becomes invalid. Contact your service provider for
a new card.
The PUK2 code, supplied with some SIM cards, is required to
change a blocked PIN2 code. If you enter a wrong code ten
times in succession, you can’t use the functions requiring
the PIN2 code. Contact your service provider for a new card.
You can’t change the PUK or PUK2 code. If you lose it,
contact your service provider.