Re: What’s changed with QC35's new Firmware 3.0.3?
This is probably not gonna fix everyone's problem as I saw some who just bought them and had issues. It might make it better though for some.
I updated to 3.0.3 and noticed a huge difference. Could hear everything and was super frustrating! I went to the Bose shop with the headphones and after they reinstalled the latest version to make sure there was no issue when I did, they pointed out that it could be because my ear pads were pretty ran out. Thought I'd give it a try so bought some from ebay for $10 and changed them. It has indeed improved a lot! To the point that it's not a huge issue anymore.
To be honest, I'm not sure if it was better before or it was just the ear pads. Wonder how I didn't notice the bad performance before the update though?! Anyway, thought I'd share. If your ear pads are looking a bit run out, it might be worth putting $10 into giving this a try. Let me know if it did the job for you.
Btw, these are the ones I bought if you live in AU (I have QC 35 I, not II - they work fine): https://www.ebay.com.au/itm/Replacement-Ear-Pads-Cushions-for-Bose-QuietComfort-35-QC35-II-QC25-QC15...