Jbl e55bt not working on left side

[lukescollins]

I take my Jbl e55bt headphones to school everyday and for some reason, the left side stopped working... It still works when i put the headphone onto a certain position on my head but its very thinicky and its peeing me off

 

[helpstar]

Internal cabling or the left speaker could be broken. Could be a bad solder joint as well.

if it´s still under warranty, RMA it, otherwise, get new ones.

If you know how to solder, maybe this is an option as well:
https/www.youtube.com/watch?v=VAHaVWFBtF4&vl=en