A “YouTube Music ReVanced error 400” is a client-side error that often occurs when the app sends a malformed or invalid request to YouTube’s servers. This is almost always caused by an outdated version of the ReVanced patches or the YouTube Music APK.
YouTube regularly updates its services, which can break the patches used by ReVanced. When this happens, the patched app can no longer communicate correctly with YouTube, resulting in the 400 error.
✅ Summary of Fixes That Work (Updated for 2025)
✅ Fix | 🔧 What to Do |
|---|---|
| 1. Clear App Data (YTM + microG) | Go to Settings > Apps > YouTube Music & microG > Storage > Clear Data & Cache. Restart the phone and try again. |
| 2. Update YouTube Music ReVanced | Make sure you’re using the latest ReVanced Manager and patching with the latest YouTube Music base APK. Error 400 often happens if your base APK is outdated or unsupported. |
| 3. Update or reinstall microG | Use ReVanced Extended microG (not the regular one). Older microG builds break login/auth flow. |
| 4. Sign out & back in (Google account) | Go to Settings > Accounts > Google, remove your Google account, reboot, re-add account, and log in through microG. |
| 5. Use an older working version of YTM | If the latest YTM APK causes the issue, try reverting to an older version that worked (e.g. v6.14.52 or v6.12.x). Then repatch via ReVanced. |
| 6. Disable or re-patch problematic features | During patching, avoid enabling patches like “video ads” or “client spoof” which can cause server rejection. Try patching with fewer options first. |
🛠 Step-by-Step Guide to Fix YTM ReVanced Error 400
🔹 Step 1: Uninstall everything clean
Uninstall YouTube Music ReVanced
Uninstall microG
(Optional) Remove any Google accounts temporarily from the phone
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🔹 Step 2: Install correct components
Install latest ReVanced Extended microG
Get it from trusted sources like revancedextended.com or Inotia00 GitHub
Download a clean base APK for YouTube Music (e.g. from APKMirror or APKPure).
Match it to supported versions from ReVanced’s compatibility list.
🔹 Step 3: Patch correctly
Use ReVanced Manager to patch the base APK.
During patching:
Avoid enabling problematic patches like “video ads”, “hide cast button”, or “client spoof”.
Only enable essential patches for playback and background play.
🔹 Step 4: Reinstall & Log In
Install patched APK
Install microG (if not already)
Log in using microG (tap Google login inside YTM ReVanced)
⚠️ Extra Tips
Don’t use split APKs unless you know how to install all parts properly.
Avoid automatic updates of microG or YTM through the Play Store — it can break ReVanced.
Try a different network (WiFi vs Mobile) — sometimes 400 errors are cached at the network level.
Check if Google is enforcing new auth restrictions — some builds get blocked by Google silently.
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