LGFlashTool 188.8.131.52 can be downloaded from our website for free. The software lies within Mobile Phone Tools, more precisely LG. This free software is an intellectual property of XDA developers.
From the developer:
LG flash tool 2014 is a ROM flash tool with support for any kind of LG smartphones. The program allows you to flash KDZ files grater than 1GB. The program is easy to use: you must connect your device with the PC, copy the KDZ file into the program, fill the smartphone info, and start the flash process.
You may want to check out more software, such as LGTool or LG Bridge, which might be similar to LGFlashTool.