Solved
Roku was set up properly but now won't power on
I bought 4k stick today. Plugged in HDMI port on TV, new batteries in remote, got account going, added channels. Went away for hour, came back to find device powered down. Now it won't power up. I press power button on remote, green light comes on, then fades in 2 seconds. Device shows no signs of activity
The power button is only for the TV. Press Home (or any non-TV control button) to wake up the stick.
