So i found this post, https://www.reddit.com/r/AndroidTV/comments/95r1q5/remap_android_tv_remote_button_possible_sony/
And Philips also has an api but not for HDMI afaik. So there is an ADB command on windows/linux which performs it, but thats quite a hassle. (Since i’d need a pc 24/7 running to use that). Is there an easy way to remap it? Using the tv only?
Edit: I have a temporary solution with my raspberry pi (it executes the adb shell on http callback)
Have you tried the button mapper app? It works for me on my Philips tv, I used it to remap a useless button for a service I don’t use to open the Plex app instead. So now I have quick launch buttons for Netflix and Plex on my remote. Not sure if button mapper has options for hdmi stuff but it’s worth a look