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■ Lock or unlock the keypad (keyguard)
Select Menu or Unlock, and press the Function key
within 1.5 seconds to lock or unlock the keypad.
To activate the automatic keyguard, select Menu >
Settings > Phone > Automatic keyguard.
The default is set to On.
To answer a call when the keyguard is activated,
press the call key. When you end or reject the call,
the keypad automatically locks.
When the device or keypad is locked, calls may be
possible to the official emergency number
programmed into your device.
Security keyguard
The security keyguard requires a 5-10 digit code to
protect against unauthorized use. The default code
is 12345. To change the code and activate the
security keyguard, select Menu > Settings > Phone > Security keyguard.
When the security keyguard is activated, enter the security code if requested.
For more information, see Security keyguard, in "Phone”, p. 35.
■ Functions without a SIM card
Several functions of your device may be used without inserting a SIM card
(for example, 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.