Smart YouTube TV 6.17.391 (noarch) (Android 4.0+) - APKMirror

How to Download the Latest Update for YouTube on Smart TVs (Error 617 / 391 Fix)

Sometimes the issue is not with the app, but the TV operating system itself. Conclusion

These error codes typically point to handshake failures between your Smart TV and the YouTube servers.

If you can tell me the (e.g., Samsung, LG, Sony) and whether it runs Android TV , I can provide specific instructions for your device. Share public link

Go to Settings > Apps > YouTube and select Clear Cache and Clear Data .

If your smart TV is older and the manufacturer has stopped updating its app store, buy a dedicated streaming device (like a Google Chromecast, Roku, or Apple TV). These devices are updated frequently and offer much better performance than an aging smart TV interface.

Television firmware and app ecosystems can be finicky. Version is part of a wave of "Extra Quality" updates designed specifically for modern Smart TVs (Android TV, Tizen, webOS) and streaming sticks. Key Features of the Latest Update:

If you are seeing specific error messages or 617 variations, it usually indicates a synchronization issue between the app and YouTube servers. Try these fixes:

How to Safely Update YouTube on Samsung (Tizen) and LG (WebOS) TVs

: Released in April 2026, it offers improved compatibility for Android 9.0+ devices.

Tip: Turn on "Auto-update apps" in the Play Store settings to ensure you always have the newest, most secure version without searching for it manually.

Specifically designed for large screens and remote controller navigation. No Root Required: Operates without needing deep system modifications. Compatibility:

To help find the exact update steps for your specific entertainment system, let me know: What of Smart TV do you own?

Go to Settings > Apps > YouTube > Clear Cache.

For the best video playback experience, ensure your TV's firmware itself is up to date:

A standard power button press only puts modern TVs into a sleep mode. To perform a hard reset, unplug the main power cable from the wall outlet. Wait exactly 60 seconds. Plug the cable back in and restart the TV to clear the system cache. Check Network Stability