Nokia 6610

Page 16
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2003 Nokia. All rights reserved.
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If you key in an incorrect PIN code three times in succession, the phone may 
display 
SIM blocked
 and ask you to enter the PUK code. Contact your service 
provider to obtain the PUK code.
• 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
. You can obtain the 
password from your service provider.