What you need to Unlock LG L70 DUAL D325 Bootloader :
Windows users, you need fastboot and adb installed. All of which is included in the zip for part 1. Linux users, same for you, I have included the adb and fastboot binary but I had a problem with the adb not working in the package, might be something I edited in the shell script so install adb in your bin directory (I can help if needed).