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Nokia 3100 User Manual

Page 15

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Copyright

© 2004 Nokia. All rights reserved.

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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

Call barring service

,

see Security settings on page 80. You can obtain the password from your service provider.