As of May 2026, the latest official versions of YouTube for Android TV available include:
Smart YouTube TV 6.17.391 (noarch) (Android 4.0+) - APKMirror
You will need to find the specific APK file. Trusted repositories like APKMirror or APKPure usually host historical versions of apps.
Updates give you instant access to new platform features, such as improved voice search, updated channel layouts, and better playlist controls. Step-by-Step Guide to Update YouTube on Your Smart TV As of May 2026, the latest official versions
Before jumping into the troubleshooting steps, it helps to understand what is happening behind the screen. Error code 617-391 is typically a handshake or sync error. It occurs when your Smart TV’s built-in software tries to communicate with Google’s YouTube servers but fails. This problem is usually triggered by three main issues:
Provide these details, and I can give you custom, step-by-step instructions for your exact setup. Share public link
To ensure "extra quality," once the app is open, go to a video's Settings (gear icon) and select or the highest available resolution (e.g., 2160p/4K). Step-by-Step Guide to Update YouTube on Your Smart
This guide will explain what this specific error code means. It will also walk you through how to download the latest, fully updated version of YouTube to restore extra-quality playback to your television. What is Smart TV YouTube Error 617-391?
: Note that active development for the "Smart YouTube TV" project has largely ceased in favour of newer forks like SmartTube. Users may encounter occasional video freezing or audio-only playback issues as YouTube's backend updates. How to Download and Update
To help give you the most accurate advice, what of Smart TV are you using? Share public link This problem is usually triggered by three main
Works without requiring Google Play Services, making it ideal for devices that lack official Google support.
SmartTube（曾用名 SmartTubeNext）是一款功能强大的第三方应用，而且仍在被作者积极维护。
If version 6.17.391 is available for your hardware, select "Update" next to YouTube.
