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

Depending on your hardware, there are two main ways to get the latest updated version of YouTube for your Smart TV. Method 1: The Official App Store (Recommended)

with the best security and performance for your specific hardware. Official Update Method

On a computer or smartphone, visit a trusted repository like . Search for YouTube for Android TV .

Unlike standard updates, these optimized versions are often designed to unlock higher bandwidth utilization, improve AV1 codec handling, or bypass artificial resolution caps imposed by older TV hardware.

Installing the wrong firmware or modified application package can ruin your TV, making it completely unusable.

Search for the official release titled . Avoid standard mobile versions, as they lack proper remote control navigation mapping.

Unplug your smart TV from the wall outlet for 60 seconds. Plug it back in. This clears the system cache.

Security & privacy notes

YouTube streaming quality is limited by your internet speed and your TV's screen resolution (1080p, 4K, or 8K). No third-party download can magically bypass YouTube's server-side video compression to give you "extra quality." How to Safely Update YouTube on Android TV and Google TV

A smooth streaming experience on your Smart TV requires up-to-date apps. If you are seeing error codes like 617 or 391, your YouTube app is likely outdated or corrupt. This guide will help you download the latest version, unlock extra quality features, and fix common update glitches. What Do Errors 617 and 391 Mean?

Once you have installed the updated version, you want to ensure you are getting the absolute best performance, highest resolution, and smoothest frame rates. Enable 4K HDR and High Frame Rate (HFR)

Go to your TV's > Apps > YouTube . Select Clear Cache and then Clear Data . Reopen the app and attempt the update. 3. Reinstall the Application

Get ready to elevate your entertainment experience with the latest version of Smart TV YouTube 617 391, now available for download. This updated version offers extra quality features that will take your YouTube viewing experience to the next level.

If you want, I can:

Press the button and open the LG Content Store or Apps menu. Go to My Apps or search directly for YouTube .

If your YouTube app is acting up, the only safe way to get the latest updated version is through the official Google Play Store built into your TV. Step-by-Step Guide and navigate to the home screen. Open the Google Play Store app. Select your profile icon in the top right corner. Click on "Manage apps and games" and then select "Updates." Find YouTube in the list and click "Update."