Kamvas Pro 16 pen suddenly stopped working mid-paint.

I've tried all of the basic stuff; uninstalling drivers, restarting, plugging the usb cord onto other slots, messing with various windows settings... nothing is working. The pen just suddenly went completely unresponsive. Has anybody experienced an issue like this? I'm willing to just buy a new pen if that's what it takes but I'd like to be sure it actually is the pen before I waste 50 dollars.

EDIT: I found my issue. After following the instructions in this video: https://www.youtube.com/watch?v=coiBmAdDF9M to disassemble my pen, I found one of the soldered connections had become undone. Sure enough, when I held the connection to its place on the circuit board and moved it across the tablet I got a response. If anybody else is at their wits end like I was, give that video a watch.