Remove the batteries from the remote.Look carefully into the battery compartment of the remote and locate the purple button.
Unplug the power from the Roku.
Wait for 5 seconds.Connect the power back to the Roku.
Wait for Roku banner to bounce around on the screen.
Put the batteries back in the remote.
Press and hold the purple button in the battery compartment of the remote for 5 seconds.
Wait for the Roku to finish booting up.Now you should be good to go!