The volumn on my phone (LG G4) has been changing on it's own. It will go completely on and off or get very loud without me doing anything. If I try to readjust it manually, the column returns to where it was. Then, suddenly, I can manipulate the volume manually. Then the volume will go off and on by itself. It's like there is a poltergist in the phone. This mostly happens when playing a game. When listening to music or watching a video the column behaves itself.