Nokia 6310i User Manual page 111

When the phone requires the PIN or PIN2 code, it displays Enter PIN code:
or Enter PIN2 code:.
Enter the code then press OK.
Set PIN code request
You can activate the PIN code request to prevent unauthorized use of
your phone. If you set the PIN code request to On, your phone will ask for
the code each time you turn the phone on.
Press Menu 4-8-1 (Settings - Security settings - PIN code
1
request).
Enter the PIN code supplied by your service provider, and press OK.
2
Press (up or down) to highlight On and press OK.
3
To turn off this feature, repeat steps 1 through 3 above, but highlight Off
in step 3.
Change your PIN or PIN2 code
You can change your PIN or PIN2 code to any 4- to 8-digit number.
Press Menu 4-8-6 (Settings - Security settings - Change access
1
codes), scroll to the PIN code you want to change, then press Select.
Enter the current PIN code and press OK.
2
Enter the new PIN code and press OK.
3
Enter the new PIN code again to verify, and press OK.
4
Note: If you make a mistake while entering the code, Code Error
appears. Start again at step 2 and be careful to enter the correct
code. If you enter the wrong code three times in a row, the PIN
code is blocked. To unblock the PIN code, you need a Personal
Unblocking Key (PUK).
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