LG GW300 Guide De L'utilisateur page 149

Handset lock - Choose a security
code to lock your phone When
switching on, If SIM changed or
Immediate.
Change codes - Change your PIN
code (This menu item will appear
if PIN code request is set to On),
PIN2 code, Security code or ATMT
code.
Anti Theft Mobile Tracker - When
the handset is stolen, handset
sends the SMS to the numbers
configured by real owner. To
activate the ATMT feature, you will
need to set ATMT on, and configure
the ATMT settings with name,
primary number and secondary
number. Default ATMT code is
"0000."
ATMT SMS will contain information
about the stolen phone IMEI,
current location (captured as per
Cell Broadcast message) & number
of the person who is using that
handset."
Note: Security code
The security code protects the
unauthorized use of your phone. The
default security code is set to '0000'
and the security code is required
to delete all phone entries and to
activate the Reset settings menu.
Also, the security code is required
to enable or disable the phone lock
function to prevent unauthorized
use of the phone. The security code
default setting can be modified from
the Security > Change codes.