YouTube Server Error 400 Is Back on Android Two Days After a Fix

The YouTube Server Error 400 bug is back on Android. On November 3, Google confirmed that some users still cannot open the YouTube app or load videos, only two days after it said the problem had been fixed. The company has not shared a new timeline, and the workarounds it suggests will delete downloaded videos.

Affected users see a “Server Error 400” or “There was a problem with the server [400]” message when they launch the app or try to play something. Reports began piling up on November 1, when complaints about the YouTube app also spiked on Downdetector.

Google Walks Back Its YouTube Server Error 400 Fix

A TeamYouTube moderator first flagged the bug as a known issue on November 1, saying it was happening “specifically across Android devices.” Later that day, the same YouTube Community thread was marked as fixed, telling users they should be able to watch videos normally again.

That turned out to be premature. In a new update dated November 3, Google wrote, “We’re aware that some users are still seeing ‘Server Error 400’ messages when accessing YouTube on Android. Our teams are continuing to work on a fix and we’ll let you know here as soon as we have updates!”

The bug does not hit every phone. Android Authority said several of its staff tested YouTube on Android without seeing the error, while Reddit users report that clearing the cache or updating the app did not help. Google has not explained what causes it or how many people are affected.

How to Fix YouTube Server Error 400 for Now

Until a proper fix arrives, Google recommends one of two steps:

• Uninstall and reinstall the YouTube app.
• Go to Settings, Apps, YouTube, Storage and tap “Clear storage.” Clearing only the cache is not enough.

Both options wipe the videos you have downloaded for offline viewing, so anyone with saved content for a trip may want to wait. On many Android phones YouTube is a preinstalled system app, so “uninstall” may only remove its updates. Some Reddit users say reinstalling those updates was enough to get the app working again.

If neither step works, watching through a mobile browser such as Chrome is a simple stopgap until Google pushes its fix.

Not YouTube’s Only Android Problem

The error lands while another glitch is still open. A separate YouTube bug that pushes videos into the mini player and cuts the audio has been reported on Android and iPhone since October, with no confirmed fix yet.

Other Android app issues are also open. Some Samsung owners also found Android Auto not connecting after the One UI 9 update.

Keeping the phone itself current is still worth it, even if it will not cure this bug. The November 2026 Samsung security update closes a zero-click Android flaw. We will update this story when Google confirms a working fix for YouTube.