then connect phone to usb and wait, it should create 2 files in Lg-utils folder, one with name STATIC_EEP with 80kb and other STATIC_EEP.big delete the STATIC_EEP.big file and copy STATIC_EEP file to c:\ 4- then open again KP500-Utils-EN.exe software if you close it write P (Unlock) then ENTER then write c:\STATIC_EEP and ENTER unlock code will.