Hi! I understand that when you open some content in the HDO Box app on your Android 10 device, you're seeing a black screen. Let's work through this together to get it fixed.

First, can you tell me if this black screen happens with all videos or just certain ones? Also, have you tried any fixes yet like restarting the app or your device?

While you respond, here are some common steps that help resolve black screen issues in HDO Box:

1. Restart the App and Device
- Close the HDO Box app completely.
- Restart your Android device.
- Open HDO Box again and try the content.

2. Clear the App Cache
- Go to your device Settings > Apps > find HDO Box.
- Select Storage and tap Clear Cache (don’t clear data yet as you might lose saved movies).
- Reopen the app and check if the problem persists.

3. Update or Reinstall the App
- Sometimes the app needs updating for better compatibility.
- If an update isn’t available or doesn’t help, uninstall and reinstall the app. Make sure to download it from a trusted source.

4. Check Internet Connection
- Streaming requires stable internet, so confirm your Wi-Fi or mobile data is strong and steady.

If you’ve already tried these or if the black screen still happens only on certain videos, let me know so we can dive deeper or consider other causes like app server issues or compatibility.

Does this information help so far? Are you able to try these steps?