Nokia 3555 manual Keypad lock keyguard, Functions without a SIM card, Access codes, Security code

Warning: With the flight profile you cannot make or receive any calls, including emergency calls, or use other features that require network coverage. To make calls, you must first activate the phone function by changing profiles. If the device has been locked, enter the lock code. If you need to make an emergency call while the device is locked and in the flight profile, you may be also able to enter an official emergency number programmed in your device in the lock code field and select ‘Call’. The device will confirm that you are about to exit flight profile to start an emergency call.

To deactivate the flight mode, select any other profile.

Note: In the flight profile, you may need to unlock the device and change to the calling profile before making a call.

■Keypad lock (keyguard)

Select Menu or Unlock (1), and press * (2) within 1.5 seconds to lock or unlock the keypad.

If the security keyguard is activated, enter the security code if requested.

To answer a call when the keyguard is on, press the call key or open the phone. When you end or reject the call, the keypad automatically locks.

For Security keyguard, see "Phone," p. 45.

When the keyguard is on, calls may be possible to the official emergency number programmed into your phone.

■Functions without a SIM card

Several functions of your phone may be used without installing a SIM card (for example, the data transfer with a compatible PC or another compatible device). Without a SIM card, some functions appear dimmed in the menus and cannot be used.

For an emergency call, some networks may require that a valid SIM card is properly inserted in the phone.

■Access codes

Security code

The security code helps to protect your phone against unauthorized use. You can create and change a code, and set the phone to request the code. See "Security," p. 46.

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