Nokia 6651 - . The Antenna

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PIN code: The PIN (personal identification number) code may be
supplied with the SIM card. It protects the SIM card against
unauthorized use. If you activate the

PIN code request

function in the

Security settings

menu, the code is requested each time the phone is

switched on.

If you enter an incorrect PIN code three times in succession, the SIM
card is blocked. Enter the PUK code and press

OK

. Enter a new PIN

code and press

OK

. Enter the new code again and press

OK

.