ContributionsMost RecentMost LikesSolutionsRe: I have an ONN Roku TV and get a black screen on all the apps I’ve tried that and every other fix too on Reddit. Nothing works. Re: I have an ONN Roku TV and get a black screen on all the apps My Onn Roku Class 4K UHD (2160P) LED tv is only 3 years old and has been doing the same thing for months. I’ve had internet folks come out to check all that thinking it was my internet. No change. Tv would stream if I used a firestick but then that would black out. I bought a Roku and it’s blacking out with that too. Has sound but no picture and has to be restarted multiple times for screen to come back on for menu. I will never buy one of their TVs again. It’s embarrassing to have a house full of people and a **bleep**ty 70 inch tv. Over it! Good luck on yours but I think I’m trashing this one once I can save up for another. 😭