Please ignore the "br" tags in the text area.
2) Enter it in URL
csmg.lgmobile.com:9002/svc/popup/model_check.jsp?model=model_of_phone&esn=serial_number
3) Show page that you get in source-code view
4) select & copy number between
5) Enter this number to csmg.lgmobile.com:9002/csmg/b2c/client/auth_model_check2.jsp?esn=enter_esn_number_here
6) Show page as source-code view
7) You have all needed information about your firmware. If you have older firmware, just replace some letters in FW link.
Original content from xda-developers.com
thank you very much
RăspundețiȘtergereit really work for me
i search for 12 hour until i found your way
:)