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YouTube's Server Error 400 is back for some Android users

YouTube said on 1 November that the Server Error 400 on Android was fixed, but Google now confirms some people still can't open the app or load videos. It's working on another fix, with no timeline.

Use & Like · 3 November 2026 · Source: Android Authority

What it means for you

If YouTube on your Android phone shows Server Error 400, it's a known problem on YouTube's side.

What to do

Google's two workarounds: uninstall and reinstall YouTube, or clear the app's storage in Android settings (not just the cache). Both delete your downloaded videos, so keep that in mind if you watch offline.

The details

Not everyone sees the error; Android Authority's staff couldn't reproduce it. Clearing the cache or updating didn't help some users, while others got back in by reinstalling updates.

Where and when: YouTube app on Android

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We write every story in our own words from its source and check the facts before it goes up. Source: Android Authority.