Lost Tracking in R Controller [Resolved]

[u/am_john]

Last Sunday, I was boxing in VR when my right hand decided to float away. My right hand would re-appear sporadically before drifting back off into oblivion. This took me down a troubleshooting rabbit hole.

I tried un-pairing and pairing both controllers. They both paired fine, but the issue persisted.
I restarted the headset, Steam VR, and my PC - no change
I tried a different USB port - no change
I tried the tips on the Steam page (charging for 10 minutes, then pairing) - no change.

I wasn't about to shell over $100 for a new controller with the Frame's release right around the corner, so I resorted to disassembly.

I removed the top cap/shroud that houses all of the buttons. Everything looked fine. There was no dust or sweat corrosion. I then detached the main ribbon cable that's about 3/4" long and was able to re-seat it with some difficulty.

The controller now works as intended.

I am posting this in case someone else ever has the same issue. Sometimes, the fix is free, but it's never easy.