Bose is now visiting customers at home to figure out QC35II noise cancellation problems

Image: Bose A few months ago, some owners of Bose’s Quiet Comfort 35 II noise-canceling headphones complained that recent firmware updates had degraded the effectiveness of that noise cancellation. Sounds that were once eliminated by Bose’s signature NC have been more audible after the update, and this drove some people to downgrade their firmware to restore performance. Bose has since blocked the ability to downgrade firmware, however, in a move that it says was meant to “add