Enhancements; Access Codes - Nokia 7900 Crystal Prism User Manual

User guide
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■ Enhancements

A few practical rules about accessories and enhancements:
• Keep all accessories and enhancements out of the reach of small children.
• When you disconnect the power cord of any accessory or enhancement, grasp
and pull the plug, not the cord.
• Check regularly that enhancements installed in a vehicle are mounted and are
operating properly.
• Installation of any complex car enhancements must be made by qualified
personnel only.
Warning: Use only batteries, chargers, and enhancements approved by Nokia for
use with this particular model. The use of any other types may invalidate any
approval or warranty, and may be dangerous.
For availability of approved enhancements, please check with your dealer. When you
disconnect the power cord of any enhancement, grasp and pull the plug, not the cord.

■ Access codes

Select Menu > Settings > Security to set how your phone uses the access codes
and security settings.
• Keypad lock (keyguard) prevents accidental keypresses:
1. To lock the keypad, with the fold open, select Menu > * within 3.5 seconds.
2. To unlock the keypad, with the fold open, select Menu > * within 1.5
seconds.
To answer a call when the keypad is locked, press the call key. When you end or
reject the call, the keypad locks automatically.
You can also select Menu > Settings > Phone > Automatic keyguard or
Security keyguard > On or Off. If the security keyguard is on, enter the security
code when requested.
• The security code (5-10 digits) helps to protect your phone against
unauthorised use.
• The PIN code, supplied with the SIM card, helps to protect the card against
unauthorised use.
• The PIN2 code, supplied with some SIM cards, is required to access certain
services.
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G e n e r a l i n f o r m a t i o n

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