Nokia 6590 - Personal unblocking key (PUK) codes

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Personal unblocking key (PUK) codes

PUK and PUK2 codes are used to restore blocked PIN and PIN2 codes.
Both PUK and PUK2 codes are eight characters in length and cannot
be changed. PUK and PUK2 codes must be obtained from your
wireless provider.

Important: If you enter an incorrect PUK or PUK2 code 10 times in
succession, the message SIM rejected appears in the display and
the SIM card can no longer be used. You must contact your wireless
provider for a new SIM card.