Bose investigation concludes QC35 firmware update didn’t break noise cancellation

Bose is bringing an end to the long-running saga of complaints regarding noise cancellation issues with its Quiet Comfort 35 and Quiet Comfort 35 II Bluetooth headphones. After spending months looking into reports of reduced NC performance — something many customers have blamed on firmware updates — Bose has concluded that firmware isn’t responsible for the perceived drop in noise cancellation effectiveness. But it’s going to let QC35 owners downgrade back to older firmwa