if you are confident enough to open your case have a look at the mounting board of the usb socket to see if it has cracked or got a broken wire.
have you tried the headset on a different usb.
type sound into search box then click on recording tab , does it say if it has detected that a microphone is plugged in.
I have an experia headset with microphone and the plug is a very tight fit almost to the point where I had to force it into the usb socket on my pc. I figured that sooner or later I would break the usb mount on my pc so I put a short usb cable into the pc's usb socket then plug the headphones into the cable. Yes its a pain but at least my pc socket is now safe from damage.