Hi, I got things to work with my 2019 Samsung Q7 following the suggestions on this thread...so thank you for everyone’s help. Unfortunately, it only worked for a couple of day and now the remote does not work again. I think others are also experiencing this. I guess this proves it’s not the cable or hardware, but some software issue...any thoughts on a permanent fix? Thank you!
I find that I can get CEC working again if I turn off the TV, unplug the Pi4 from the outlet and then plug the power back in. When I do this, the Pi4 will turn on the TV (this is a setting in the config file) and now the Samsung remote will control Kodi again. Maybe this will be helpful in troubleshooting this issue. Thanks!