Nokia 7210 - Manual (Page 51)

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You’re asked to re-enter the new security code for verification.
4 Enter the new security code again and press OK. A message appears
in the display confirming your security code has been changed.
The PIN code
The PIN code protects the SIM card from unauthorized access. The PIN code
can be 4- 8 digits in length. After three successive incorrect entries the
PIN code is blocked and you’ll be asked to enter the personal unblocking
key (PUK) code.
Note: The PIN code must be obtained from your wireless provider.
The PIN code is typically provided with your SIM card.
PIN CODE REQUEST
Enable your phone to request the PIN code upon power-up. This provides
extra security in case your phone is lost or stolen.
1 Press Menu 4-7-1 (Settings - Security settings - PIN code request).
2 After a brief pause, you’re prompted to enter the current PIN code.
Enter the PIN code and press OK.
3 Scroll to On and press OK. A message appears in the display
confirming your selection.
CHANGE YOUR PIN CODE
Before you can change your PIN code, you’ll need to enable PIN code
request. See “PIN code request” immediately preceding this section.
1 Press Menu 4-7-6-2 (Settings - Security settings - Access codes -
Change PIN code).
2 After a brief pause, you’re prompted to enter the current PIN code.
Enter the PIN code and press OK.
3 You’re prompted to enter the new PIN code. Enter the new PIN code
and press OK.
4 You’re prompted to re-enter the new PIN code for verification.
Enter the new PIN code again and press OK.