How to Fix the No-Sound Issue on Your Bose QuietComfort (QC) 35 I and II by Replacing the Speaker Driver (DIY Repair Guide)
Are your Bose QuietComfort (QC) 35 1st and 2nd Generation wireless Bluetooth headphones producing distorted or crackling audio, especially at higher volumes? If you notice reduced volume or complete sound loss on one side, the speaker driver may be damaged and needs to be replaced.