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Fix Video DRM Errors on Samsung for Prime Video, Netflix, and Others
Reboot your Device
Crosscheck internet connection
Disable VPN services
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Disable overlay apps
Most famous overlay apps include Facebook messenger, Bluelight filter, Day-night mode etc. These apps have permission to draw over your screen. You can either uninstall these apps or revoke their overall permission from settings.
Install VLC media player
Update Browser
Troubleshoot Display connection
Clear App cache
Open the Settings app on your smartphone and navigate to the Apps section.
Note: For iPhone users, there’s no way to clear cache, so users have to uninstall the app and reinstall it from the App store.
Crosscheck resolution
In many cases, the resolution of the video is much higher than your TV can support. In such cases, you will see the black screen issue and this is very common when you are chrome casting your smartphone display to your TV. We recommend you lower the resolution and avoid playing in full HD resolution if you have a smaller TV display.
Conclusion
Fix: Samsung Smart TV Prime Video Not Working Or Loading
How To Cancel Premium Subscribed Channels on Prime Video