If you own either the F500S, F500L, or F500K variant of the LG G4, then you can download the Android 7.0 Nougat KDZ for your specific device right in our forum. These download links were shared by XDA Senior Member PjLyTam who not only provided direct download links of them, but also mirrored them up on Google Drive. Just realize that these cannot be flashed onto other variants of the LG G4. Only the F500S/L/K are supported by these KDZs.

Download the Nougat KDZ in our LG G4 forum