When the Fire TV Remote Stops Responding — Why an Overnight Rest Fixes It, and the Right Power Reset

My Fire TV remote suddenly stopped responding. New batteries did not help, re-pairing did not help. I gave up, left it overnight, and the next morning it worked as if nothing had happened. As an engineer, a fix with no known cause is the most unsatisfying ending of all. Here I break down why an overnight rest works, through Bluetooth pairing state, residual charge, and the Fire TV OS input process, and I lay out the power reset that fixes it in minutes rather than a night.