Lock the device
To prevent access to the contents of your device, lock the
device when in home screen. Press the power key, select
Lock
phone
, and enter your lock code. The default lock code is
12345. To unlock, press the left selection key, enter your lock
code, and press the scroll key.
To change the lock code, select
Menu
>
Tools
>
Settings
>
General
>
Security
>
Phone and SIM card
>
Lock code
.
Enter the old code and then the new code twice. The new
code can be 4-255 characters long. Both alphabets and digits
can be used, and both uppercase and lowercase alphabets
are possible.
You can also lock the device remotely by sending a text
message to the device. To enable remote locking and to
define the text for the message, select
Menu
>
Tools
>
Settings
>
General
>
Security
>
Phone and SIM card
>
Allow remote lock
>
Yes
. Enter the remote lock message
and confirm the message. The message must be at least 5
characters long.