Question: how to install kdz file on lg g4?
Answer: Step 2: Open the LG Flash Tool 2014 folder and copy the KDZ file in it. If the Flashtool is compressed, extract it to get a folder containing the necessary files including the LGFlashtool2014.exe file. Transfer the H815xxx_00. kdz file, you have just downloaded, into the LG Flash Tool 2014 folder.