Thanks for getting in touch, I are sorry to hear that you are having trouble with your QC35 II's I would love to help you with this issue. Firstly I would recommend trying to reboot your product, just follow the steps below:
Reboot your headset:
Let me know how you get on!
Zoe_C - Community Support
Thanks for getting back to me Demarini2022, I am sorry to hear the product reset did not help. It seems that the only option would be to call the customer service team to explore the service options available to you as the fall probably resulted in material damage to the internal parts. To find details on how to contact us follow this link our colleagues would be happy to help you.
I just thought I would let you know in case you were not aware that don't recommend the QC35 II's for working out as they are not made for that activity as the sweat can damage the cushions and the headphones could fall off. For sport we have a range of headphones that are sweat resistant and offer great comfort.
All the best,
Jun 5, 2019
May 14, 2020
BakedLiger, thank you so much.
I had this problem with mine and feared they had died.
Reset the headset, played about with Bose Connect Settings, tried to re-pair devices - nothing worked.
Read this, pressed the 'Volume up' button and problem gone.
Such a simple fix, thankfully!
Jul 25, 2020
Hi my Comfort 35 headphones just started doing this the other day. I have tried everything mentioned on this post. I have let them run completely flat and recharged. Any other options or ideas?