focal headphones lost output on left side

Switch the connectors at the headphone to see if it is the cable.My Elear cable is also bad for the left channel and I need to see if anything can be done as well.

FYI

I had an issue with my Focal Utopia. I got brand new drivers put in by Focal. I paid to ship to them and they paid return shipping. I never had to provide any other information...only took some pics of the headphones and sent via email.

There was some distortion in the bass frequencies that I noticed after playing some bass heavy songs...kind of just showed up. 

If you are persistent with a rep about Focal's reputation / quality control and polite to a service manager, they should be able to work something out for you.