I’m mirroring videos from my iPhone to my Roku tv and have sound but no picture
Thanks for the note.
Are you using the Play on Roku feature in the Roku mobile app to display the videos from your iPhone to your Roku TV?
Please be aware that screen mirroring with a Roku device is not supported with iOS® or Apple devices.
For more information about screen mirroring on your Roku device, visit our Support page here: How do I use screen mirroring with my Android™ or Windows® device?