Nokia 3100b 사용자 설명서

 27

Copyright © 2003 Nokia

Keyguard disables your keypad to prevent 
accidental key presses (for example, when your 
phone is in your pocket or purse).

•

To lock the keys, select Menu

and press the 

Star key.

•

To unlock the keys, select Unlock and press 
the Star key.

When the Keyguard is enabled, the keypad and 
display cannot light if you press a key. Press the 
power button briefly to activate the keypad and 
display lights.

Note: When the Keyguard is on, calls still may be possible to the official 
emergency number programmed into your phone. Enter the emergency 
number and press the Send key.

You can have your phone automatically lock the keys after a time you specify. See 
“Set automatic Keyguard” on page 62 for more information.

The security level determines your access to features when a nonowner SIM card 
is used. A nonowner SIM card is one (other than the original) that is inserted after 
you power off the phone. There are three security levels:

•

Off—Owner and Nonowner cards are treated the same.

•

Memory—Nonowner cards can access SIM memory. Any changes to the 
memory setting requires the security code. The owner card has access to all 
features, but the security code is required to change a memory setting.

•

Phone—The security code is required upon power-up.

Use this procedure to set your security level.

Select Menu > Settings > Security settings > Security level. 

After a brief pause, you are prompted to enter the security code. The default 
code is 12345.