Help Center/SMART_TV
SMART_TVTROUBLESHOOTINGVersion v3.0

Troubleshooting Smart TV App Freezing, Buffering or Crashing

Step-by-step diagnostic guide for Samsung Tizen, LG webOS, Android TV, Fire TV and Apple TV.

Owner: Technical Support Engineering
Last Reviewed: 8/28/2026
Verified Production Runbook
### Overview If your CUTV application freezes, exhibits high buffering, or unexpectedly returns to your TV home screen, follow these diagnostic steps in sequence: 1. **Perform a Clean Power Cycle**: Unplug your Smart TV power cable from the wall outlet for 60 seconds (do not simply turn off with remote). This clears the DRM crypto hardware cache. 2. **Verify Bandwidth for 4K UHD Streams**: Run a speed test on your TV browser. CUTV requires 15 Mbps for 1080p60 and 25 Mbps for 4K HDR streams. 3. **Generate a TV Support Diagnostics Code**: - Navigate to **Settings > Diagnostics** inside the CUTV TV app. - Note the 6-character dynamic PIN (e.g. `TV-8941`). - Share this code with CUTV Support via live chat or contact form for real-time player telemetry lookup. 4. **Reinstall Application**: If app crashes persist on Samsung 2021-2023 models, remove the CUTV app, reboot TV, and reinstall from Samsung Apps Store.

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