Hi Kyumz,
Don't know how much this will help, but it may point you in some direction.
I have Virtuoso SE headset.
Will try to direct per your issues as per my personal experience.
1. I assume it is charging, which may seem like a driver/software problem and maybe in a rare case the cable, but keep in mind my comment at the bottom of the reply.
2. That's controlled (as far as I know by the iCUE software). Doesn't work meaning it is stuck at the default or you can't change it? If default, I would assume the issues of nr.1
3. My one connects fine and I also have a wireless XBOX controller with dongle. Now it points more towards hardware.
4. Sounds like a faulty headset and maybe, but very unlikely, the cable.
5. As per point 1, I assumed the headset does work with in wireless. So it doesn't work at all then? Or it does but you can't use the controls in iCUE?
6. Can't say anything about that since I don't use my microphone... its unplugged.
Regarding the firmware... if it can't connect in USB or is detected in iCUE… it would make sense to me that it wont be able to update firmware.
Advice, test it on another PC with the latest iCUE and fully updated Windows.
If you have the same issues, I regret to inform you... my last comment.
The quality of Corsair's audio products have seriously gone down the drain.
* To note, my VOID wired headset lasted quite a while until the wire for some reason, even with careful handling decided to short. So it keeps losing connection and reconnects when I move my head. I decided to get a Virtuoso SE, which I also regret to inform you that despite the reviews is really way under par in sound quality even compared to some non High Fidelity and much cheaper headsets. Then I got a VOID Elite Wireless, which (and this really rocked me in a negative way) had worse sound quality than my original VOID headset (I compared them since the original one still works with careful handling) and can't even charge!
Every year the audio product quality goes further down the drain. That's audio from my experience though. In Corsair's defence, my Corsair keyboard, mouse and SSD's are solid performers and worth every penny.