First of all, sorry if this isn't the right place to ask such a question, I wasn't sure.
I recently sent my Sennheiser HD-25 II back to repair because of a problem I had. I sometimes had no sound at all on one side, or low volume / only part of the instruments. Same thing happened with my 3 months old Sennheiser cx300ii recently. The sound is incredibly low on the right side and normal on the left. Maybe this could be a coïncidence, but I am starting to wonder if the the jack entry on my phone or speakers could be the cause..? Is that possible? If yes, is there a way to check?
I don't remember damaging either jack entry but my phone has indeed lived for a while and has been dropped several times.
Thank you for any reply!