Lock the keys
When the device or keypad is locked, calls may be
possible to the official emergency number
programmed into your device.
The keypad of your device locks automatically to
prevent the keys from being accidentally pressed. To
change the period after which the keypad is locked,
select
Menu
>
Control panel
>
Settings
and
General
>
Security
>
Phone and SIM card
>
Keypad autolock period
.
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To lock the keys manually in the
home screen, press the left
selection key and *.
To unlock the keys, press the left
selection key and *.