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Product will not turn on | Custom QuietComfort® 35 wireless headphones II
custom-quietcomfort®-35-wireless-headphones-ii
Custom QuietComfort® 35 wireless headphones IISold from 2017 - 2021

Product will not turn on | Custom QuietComfort® 35 wireless headphones II

Check for and install any available product updates.

On a computer, visit btu.bose.com and follow the instructions to ensure your product has the latest features and enhancements. See Checking the software or firmware version and Updating the software or firmware of your product.

Reset your product.

Much like rebooting a smartphone, your product might need to be reset on occasion to correct minor issues. For more info, see Resetting your product.
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Product will not turn on | Custom QuietComfort® 35 wireless headphones II