This LG is PDA phone,so you cannot Unlock it as free of cost,You can get the paid Unlock code at here
and follow the instructions below and Unlock it step by step,then You can use any GSM network,Specify the Network,country it locked and get the code...
LG KS360 Unlocking InstructionsWarning :
Do not enter any wrong unlock codes on your LG KS360 mobile phones. If
you enter over a certain amount of wrong unlock codes on your LG KS360
mobile phone, your phone may get hard locked and sometimes become
1 - Switch ON your LG KS360 with its ORIGINAL
2 - Enter 2945#*71001#
3 - Sim unlock mode pop up,
4 - Enter the unlock code and press ok,
5 - The LG KS360 will then reboot and the unlock is complete.
: We mean, to use the sim card that was originally given to you by your network/service provider along with the LG KS360.