I have a 50 inch ONN roku TV from Walmart. I turned it off this morning with Roku remote. like normal. now remote will not turn tv on. batteries changed multi times. all power/ other connections secure
Can you please provide more information about the issue you are experiencing? Are you able to power the Roku TV without using the remote (through button on TV or through the Roku mobile app)?
If you are still unable to resolve the issue, please contact your TV's manufacturer directly to report this issue and request additional support. Each Roku TV manufacturer provides direct support and warranty services for their products running the Roku OS.