| Issue | Likely Cause | Solution | |-------|--------------|----------| | "App not installed" | Newer version still present | Go to Settings → Apps → YouTube → Uninstall all updates. If it's a system app, use ADB to uninstall (advanced). | | "Parse error" | APK requires higher Android version | You downloaded a version for Android 6.0+ (SDK 23). Download only minSdk 21 versions. | | Videos won't play / black screen | Outdated WebView or DRM | Update Android System WebView from Play Store. | | "No internet connection" | Google deprecated old API endpoints | This is inevitable. Try version 16.49.37 or consider using (see alternatives below). |
Based on community testing and APK archive data, the last stable YouTube versions that support Android 5.1.1 are: download youtube old version for android 5.1.1
The current version of the YouTube app requires Android 8.0 (Oreo) or higher. If you try to install the latest APK or update via the Google Play Store on Android 5.1.1, you are met with a frustrating error: "Your device isn't compatible with this version." | Issue | Likely Cause | Solution |