Headset turns off when tapped on the right side or placed on desk

So, I have had this headset for a few years, definitely more than the 1-year warranty that they give.

The issue is, every time the headset is tapped or hit by something, it will shut off, and I have to wait a few seconds to turn it back on. Sometimes I have to tap it again for the button to work.

It's almost like a connection in the main power is loose, or is touching another wire.

Hope it's an easy fix, I haven't tried soldering too much in my life (although happy to learn).