Hey guys, my HD 518 headphones are not working. Only one side of the headphones are working. The side that has the cable is working but not the other side.
Most likely the cable connecting the two sides has broken. Take it part and see if you can get at the solder points on the drivers, see if those are still connected, if they aren't the wires themselves might need fixing.
Could be the cable also. A replacement will run you 15-20 bucks though (needs to have the locking notch). Have you tried using the Senns with another device? Just to be sure it's the headphones and no the source that's the problem?