Google regularly updates its server-side APIs. Because this is an older build, certain features—such as logging into modern Google Accounts or loading the homepage feed—may require custom patches or might not work at all. It is primarily used for targeted playback and developer testing. Step-by-Step Installation Guide

Includes support for the Opus audio codec, providing better sound quality at lower bitrates.

However, installing an APK from 2011 comes with significant caveats. The most prominent issue is "Protocol Error" or "Connection Error" messages. Because Google has updated its Data API (moving from v2 to v3 and beyond), many older app versions can no longer communicate with YouTube’s servers. While the interface may load, the video player often fails to fetch content unless specific patches or third-party workarounds are applied.

If you need YouTube on an old phone or Android 4.0 tablet, skip 2.07.02 and try these instead: