If you want the modern, official YouTube experience on your old device, your best long-term option is to bypass Android 4.4.4 entirely.
: Search specifically for YouTube 13.49.52 .
: Delete the file, return to the archive, and explicitly verify that the Minimum Target API is Android 19 (KitKat). "Connection to Server Lost / Touch to Retry" Youtube Apk Android 4.4.4
The official YouTube application requires modern Google Play Services framework APIs. Android 4.4.4 lacks the modern encryption protocols (like TLS 1.2 or TLS 1.3) required by modern servers. Consequently, standard installations from the Google Play Store fail completely.
Playback Issues: High-definition codecs used today might not be supported by the older hardware acceleration in KitKat devices. If you want the modern, official YouTube experience
Download it directly from the official NewPipe website or GitHub repository under the "Legacy" tag. 2. Browser-Based Streaming via Kiwi Browser or Opera Mini
: You can add a shortcut to your home screen from the browser menu to make it feel like an app. Third-Party Clients "Connection to Server Lost / Touch to Retry"
Because the official legacy app faces severe server-side restrictions, third-party developers have created lightweight, optimized clients designed specifically to bypass these API blocks on older operating systems. 1. NewPipe Legacy