Nokia 3100 Extended User Manual page 15

• PUK and PUK2 codes (8 digits): The PUK (Personal Unblocking Key) code is required to change a
blocked PIN code. The PUK2 code is required to change a blocked PIN2 code.
If the codes are not supplied with the SIM card, contact your local service provider for the codes.
• Barring password (4 digits): The barring password is needed when using the
see Security settings on page 80. You can obtain the password from your service provider.
Copyright © 2003 Nokia. All rights reserved.
Call barring service,
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