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i tried it with some headphones all working but i can hear just on the right ear the other side just dont work=how can i fix it?

replace headphone jack

on Bose QC25 The right side isn’t working, i did replace the wire, any tip? Thank you

EASY !!!!In most cases, it is the speaker that is the problem !!! Easy to change:

  1. 2 screws inside the earcups and the cloth piece (The earcups are “clips” on plce…use your finger all the way around until you hear click….every 2 cm…..)
  2. Use a scalpel to open the cover of the speaker (NB!! warm up a bit first…hair dryer works fine!) 3.Unsolder the speaker and solder a new one !! EVERYTHING OK !!!

Go to Settings - Accessibility - Audio/Visual and check if Balance is right in the middle - I remember once it got messed up by itself for absolutely no reason, but I fixed it this way in seconds