391 Download Latest Version Extra Quality Updated !!exclusive!! | Smart Tv Youtube 617
：
Updating to the version is a game-changer for anyone who values visual fidelity. With "Extra Quality" patches and updated stability, it transforms your living room into a true cinematic experience.
(often misidentified as 6.17.391) to unlock "extra quality" performance and better stability on older Android-based sets.
Access to new YouTube features, including live chat, improved video quality toggles, and better navigation. ： Updating to the version is a game-changer
Updates include patches that protect your Google account information and personal data.
To fully appreciate the alternative options, it's important to understand the significant leaps the official YouTube app has made. In 2026, the official YouTube for Smart TVs has transformed into a living-room entertainment powerhouse, focusing heavily on AI and personalization.
As this is third-party software not hosted on the official Google Play Store, ensure you download it from a verified source to avoid security risks. YouTube Not Working on Old Smart Tv Access to new YouTube features, including live chat,
Alternatively, search for "YouTube" directly in the Play Store search bar and click the button on the app's main page.
Depending on your Smart TV OS (Android TV, Tizen, WebOS, or a generic Android TV Box), the method for updating YouTube varies. Method 1: The Official Way (App Store) This is the recommended method for most users.
Find the icon. If an update is ready, a clear Update button will appear next to it. In 2026, the official YouTube for Smart TVs
Alternative Method: How to Sideload the Latest APK (Advanced)
The interface is specifically designed for d-pad navigation on a TV remote. Installation Guide for Older TVs
: 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
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: