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SmartTube is a popular, advanced client designed specifically for Android TV and media boxes. It is the most likely source of the version number you're searching for. Enthusiasts and developers who build custom versions of these apps often refer to them by their specific code commits or nightly build numbers, which can look like 617.391 .
It unlocks consistent 4K streaming and HDR (High Dynamic Range) mapping on compatible hardware where newer versions might struggle with stuttering.
Why go through the trouble of a manual download? Here is a comparison table: This public link is valid for 7 days
The newest update replaces sluggish menus with a highly responsive sidebar. It streamlines access to your subscriptions, library, and account switching. It also improves voice search accuracy across Google Assistant and Alexa. 3. Critical Security Patches
On a computer or smartphone, visit a trusted hosting repository like .
While playing a video, click the Settings gear icon on the video player, and toggle Stats for Nerds to "On." This overlay shows your current connection speed and whether you are dropping frames. Can’t copy the link right now
By sticking to official app stores and optimizing your network, you can enjoy a secure, premium YouTube viewing experience without exposing your smart devices to unnecessary security threats. If you want to optimize your TV setup further, let me know: What of Smart TV do you own?
Always use the built-in TV App Store for the safest, highest-quality experience.
If you are looking for this exact version to fix compatibility issues on an older TV, follow these steps to side-load it safely. It is the most likely source of the
Here is a comprehensive guide to downloading, updating, and optimizing your Smart TV YouTube application. Understanding YouTube Smart TV Error Codes
The phrase refers to version 6.17.391 of Smart YouTube TV , a third-party, open-source YouTube client designed by developer Yuriy Lyskov (yuliskov) for Android-based smart TVs and set-top boxes. This version was released on June 26, 2020, and is noted for its ability to provide "extra quality" streaming—supporting up to 4K resolution—without requiring Google Play Services. Key Features of Version 6.17.391