[CSC_]

So in Windows 10, 11, and Ubuntu, I can sync the Amazon Fire Stick remote (Model L5B83H) to the computer. It appears as "AR" in the Bluetooth menu. The problem is, no program takes input from it. I've tried a lot of things, and nothing recognizes it.

I know the "Just Enough OS" LibreELEC has support for it (although sadly it has many other issues with use, the x86-64 version is frustratingly hard to install), strangely enough, so it's... possible, but I don't know how they do it when no other OS seems to have any actual support for it?

Yeah I know I can get some remote on Amazon or something, but I'd like to actually use hardware that I have here and not shell out more money.

[MatteN]

https://kodi.wiki/view/RF_remote_controls
https://kodi.wiki/view/Add-on:Keymap_Editor
https://forum.kodi.tv/showthread.php?tid=339780

[CSC_]

First two links don't help and I'm unsure what the third is but it seems to be using it in Fire OS? Or is that a launcher for CoreELEC to look like it?

[Jackanory]

I have a remote from the original FireTVStick, and it pairs with my Windows PC, showing up in Bluetooth as 'Amazon Fire TV Remote'.

In Kodi, the navigation keys (up, down, left, right) and OK/Select do what one might expect them to do. The only other key that does anything is the Home button, which Kodi treats as a Home button. Behind the scenes though, that home button is emitting a Browser_Home command, which you can play with if you let AutoHotKey remap it to something innocuous, e.g.
Browser_Home::NumpadDiv ; This is a AHK V2 script

With those keys, and a little magic in your keyboard.xml file, you can control most everything within Kodi, and it's pretty much instantaneous compared with using an IR remote!

Note: for some reason, I couldn't get Kodi to recognize the numpaddivide key, even though it's listed here. Never mind though, as Debug told me that the key id is "61537".

I'm still waiting for someone to unearth a driver that would bring the other buttons on the remote to life. Obviously, under other OSs like Pi, Linux, etc. all the buttons work as expected, we're just nobbled in Windows!