When the keypad is locked, calls still may be possible to
the official emergency number programmed into your
device.
To lock the keypad automatically when no keys are pressed
for a certain length of time, in the standby mode, select
Menu > Settings > Phone > Automatic keyguard > On.
To lock the keypad in the standby mode, close the slide,
and select Lock.
To unlock the keypad, open the slide or select Unlock, and
select OK within 2 seconds.
If you receive a call when the keypad is locked, it is
automatically unlocked, and then locked again when
you end the call.
24