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Bose disproves conspiracy theories regarding reduced noise canceling performance with QC 35 II update - GSMArena.com news
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Downgrade your Bose QuietComfort 35 II from any version to 4.3.6, 4.1.3, 3.1.8, 3.1.7, 2.5.1, 2.2.1, 2.2.0, 2.1.3 or 2.0.1 : r/bose
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How to update the firmware of your Bose Headphones/Earphones, Speakers, etc. on your computer ? - YouTube
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