My Roku has been constantly resetting for an extended time with message installing final updates that don’t finish and then does another reset. So out of frustration “ What are you doing”
Interested in if you've found a solution for this, as I've been experiencing the same issue with my Element Roku TV for several days.
Use a paper clip to push reset button on roku for around 20 seconds. That does a factory reset and I am able to use my roku again
The newer sticks don't need a pin. Hold in the button the the stick and it will reset.