ReVanced has quickly become the go-to alternative for users seeking a feature-rich, ad-free YouTube experience on Android. However, like any community-developed app, occasional errors do occur—and among them, Error 400 is one of the most commonly reported issues. While it might seem intimidating at first, resolving it is often a straightforward process. If you’re seeing Error 400 pop up frequently while using ReVanced, this guide will help you troubleshoot and fix the issue step-by-step.
TL;DR (Too Long; Didn’t Read)
If you’re encountering an Error 400 on ReVanced, it’s most likely due to outdated patches, corrupted app data, or conflicts with MicroG. The most effective solutions include clearing cache and data, re-installing the app, or updating to the latest compatible versions of both ReVanced and MicroG. Follow the detailed instructions below to get your app running smoothly again.
What is ReVanced Error 400?
Error 400 typically indicates a “Bad Request” in web communication terms. Within the context of ReVanced, it usually pops up either at app launch or during login, signaling that YouTube’s servers are rejecting a malformed request originating from your device. This could be due to:
- Corrupted app cache or data
- Outdated or incompatible patches
- MicroG misconfiguration or update issues
- Problems with the YouTube base APK
Common Scenarios Where Error 400 Appears
You might see Error 400 under these circumstances:
- You recently updated ReVanced or MicroG
- You performed a system software update
- You tried signing in to your Google account within ReVanced
- You installed a new mod or patch that affected ReVanced’s behavior
How to Fix ReVanced Error 400
Depending on the root cause of the issue, there are several ways to solve Error 400 on ReVanced. Here’s a step-by-step list of recommended troubleshooting steps:
1. Clear App Cache and Data
This is the simplest and often most effective fix.
- Go to Settings > Apps
- Find and tap on ReVanced
- Tap on Storage & Cache
- Select Clear Cache and then Clear Data
- Restart the app
Note: This will log you out, so make sure your data is backed up (if needed) before proceeding.
2. Check MicroG Configuration
ReVanced relies on MicroG to authenticate Google accounts, since it doesn’t have native access to Google Play Services. An outdated, corrupt, or improperly configured MicroG can trigger Error 400.
Here’s what you should do:
- Ensure you’re using the latest stable MicroG build that’s officially compatible with your version of ReVanced.
- Open the MicroG app and re-check account permissions.
- Sign out of your Google account and sign back in through ReVanced.
If necessary, uninstall and then reinstall MicroG using a trusted repository or official GitHub releases.
3. Update ReVanced and Patches
ReVanced patches don’t always work seamlessly with newer versions of YouTube or Android. Keeping everything updated reduces compatibility issues:
- Use the ReVanced Manager to apply the latest patches
- Download the latest compatible YouTube APK, not directly from Play Store, but from trusted APK repositories such as APKMirror
- Rebuild the installation with updated dependencies
It’s worth noting that patch development often lags behind official YouTube app updates, so make sure your YouTube base version aligns with ReVanced patch support.
4. Force Stop and Reopen the App
Sometimes, a forced restart does the trick:
- Go to Settings > Apps > ReVanced
- Tap Force Stop
- Open it again
5. Reinstall ReVanced
If all else fails, doing a clean reinstall can eliminate unknown causes:
- Uninstall ReVanced and MicroG
- Restart your device
- Download the required files fresh (ReVanced Manager, Patcher, MicroG, and YouTube APK)
- Rebuild ReVanced using the manager
- Install MicroG first, then ReVanced
Extra Tips for Avoiding Error 400 in the Future
After resolving the issue, take a few steps to avoid experiencing it again:
- Disable auto-updates for YouTube if using a patched version
- Keep ReVanced Manager and MicroG up-to-date individually rather than relying on bundled updates
- Avoid beta patches unless you’re willing to troubleshoot if issues arise
- Back up a working APK before applying new patches
What If the Error Still Persists?
If all standard troubleshooting fails, consider these potential causes:
- Device-specific issues: Some Android skins or firmware may conflict with unsigned APKs or custom patches
- Custom ROM bugs: Running ReVanced on a device with a custom ROM could introduce device-specific issues
- Obsolete patching tools: Older versions of patchers may not be compatible with recent changes to the YouTube app structure
In such cases, visiting the official ReVanced site or checking communities on Reddit or GitHub for similar issues might help you find a workaround—or at least confirm you’re not alone.
Conclusion
Encountering Error 400 in ReVanced can be frustrating, especially when you’re just looking to watch your favorite videos without interruptions. Thankfully, the error is usually not a dead end. By updating the necessary tools, refreshing app data, and ensuring compatibility across components, most users can solve the problem in under 30 minutes. Whether you’re a seasoned tinkerer or a new ReVanced user, regularly checking for updates and staying aware of changes in the YouTube API or Android OS will help you maintain a smooth experience.
And remember—while ReVanced is a powerful tool, it’s still under active development. Staying involved with the community and keeping your setup current can help you avoid bugs and ensure a stable platform for watching and enjoying YouTube as you like it.
