@kgsudarshan, I am sorry to hear you are having issues. Please can you try the steps mentioned in the last moderator post to get this resolved. If you continue to have issues, please use the steps provided to give us a call.
Nov 19, 2020
Sorry to hear that this issue persists.
As you have tried all the suggested troubleshooting, I would recommend you reach out to your local Bose product support team. You can reach out to your local support team by clicking this link and selecting your region. This will redirect you to our website. Please scroll to the bottom of the website and there you will find a 'Contact Us' tab, this will provide you with all the relevant contact information for your country.
Jun 6, 2021
Hi, I have a QC30, same issue, it does not charge. I cannot update the firmware either as the computer lose connection after 20seconds. I tried everything?
I went online to the support page and all I could get was an offer to buy the same product at a 15pct discount (£195 from £225 on amazon).