Mine started doing the same thing, the beats are flimsy. Try pushing the neck part into the battery, it most likely got disconnected internally from pulling/ tugging on it accidentally. I ordered new beats and started trying to break the other side because i figured they were toast after testing with various other devices and the right side still not producing audio. After playing with it i found out if you pull the neck part away from the battery hump then audio stops, if you push it back in audio comes back. Permanent fix would be to disassemble the casing and push the connecter back in but doing it externally works aswell just don't go too rough so as to not cause permanent damage.