Stick suddenly no longer connects to PS4 or PC

Got a RAP V Silent Hayabusa about 10 months ago, unmodded and used only occasionally. Played on PS4 and laptop just fine until today. At first, would randomly disconnect until unplugged and replugged, happened anywhere from 5 to 30 minutes of play. After about 2 hours, would no longer connect at all to anything. I don’t know much about stick tech or troubleshooting, but I opened it up hoping to see an easy fix. Everything inside seemed normal to me unfortunately. How screwed am I?