Solved
Roku remote not recognized
Once the input port is chosen on the TV for the Roku usually the Roku remote will take over. Now when you choose the port it goes to the Roku screen saver but the Roku remote doesn't work. It's like ...
natrajr, if it's a voice remote without a pairing button (it's not a reset button) you can put it into to pairing mode by pressing and holding Home and Back at the same time until the light starts flashing.
How to set up your Roku® voice remote | Official Roku Support
