Nokia N90 User Guide - Page 111
Certificate management, Certificate details, Delete, Trust settings, Mark/Unmark
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Glossary of PIN and lock codes If you forget any of these codes, contact your service provider. Personal identification number (PIN) code-This code protects your SIM card against unauthorised use. The PIN code (4 to 8 digits) is usually supplied with the SIM card. After three consecutive incorrect PIN code entries, the PIN code is blocked, and you need to unblock it before you can use the SIM card again. See the information about the PUK code in this section. UPIN code-This code may be supplied with the USIM card. The USIM card is an enhanced version of the SIM card and is supported by UMTS mobile phones. The UPIN code protects the USIM card against unauthorised use. PIN2 code-This code (4 to 8 digits) is supplied with some SIM cards, and is required to access some functions in your phone. Lock code (also known as security code)-This code (5 digits) can be used to lock the phone to avoid unauthorised use. The factory setting for the lock code is 12345. To avoid unauthorised use of your phone, change the lock code. Keep the new code secret and in a safe place separate from your phone. Personal unblocking key (PUK) code and PUK2 code-These codes (8 digits) are required to change a blocked PIN code or PIN2 code, respectively. If the codes are not supplied with the SIM card, contact the operator whose SIM card is in your phone. UPUK code-This code (8 digits) is required to change a blocked UPIN code. If the code is not supplied with the USIM card, contact the operator whose USIM card is in your phone. Certificate management Digital certificates do not guarantee safety; they are used to verify the origin of software. Glossary: Digital certificates are used to verify the origin of the XHTML or WML pages and installed software. However, they can only be trusted if the origin of the certificate is known to be authentic. In the certificate management main view, you can see a list of authority certificates that are stored in your phone. Press to see a list of personal certificates, if available. Options in the certificate management main view are Certificate details, Delete, Trust settings, Mark/Unmark, Help, and Exit. Digital certificates should be used if you want to connect to an online bank or another site or remote server for actions that involve transferring confidential information. They should also be used if you want to reduce the risk of viruses or other malicious software and be sure of the Copyright © 2005 Nokia. All rights reserved. Tools 111