I have the Amazon Fire TV Remote, an older Bluetooth one, paired with my X9S. It sometimes takes 3 seconds to respond to a key press, sometimes if I press a button over 3 times, it goes into a repeat loop, and sometimes if i press a button only once, it goes into a repeat loop. Sometimes after this erratic behavior, X9S doesn't respond to the remote at all, even though it shows that it is "connected", and then after a few minutes, it starts responding without me doing anything. The remote doesn't have any issues of its own, as I have tested it on other devices. Any input is welcome.