If you are experiencing the YouTube Vanced Error 400 and you can’t log in, your internet connection may be the culprit. Check your internet connection speed by calling your internet provider. You also need to ensure that your time settings are correct; if your time is inaccurate, Youtube Vanced will not function properly.
How to Fix YouTube Vanced Error 400 and Can’t Login Error?
To fix the YouTube Vanced Error 400 and Can’t Login Error, try the following steps.
Restart your devise and app
The problem can occur if the time zone, date, or region settings are incorrect. In this case, reinstalling YouTube Vanced app will fix the issue. If the problem persists, try rebooting your device and checking the status of the network connection.
You may also want to update the app. Some rogue apps may also interfere with YouTube functionality. Remove them from the device to fix the problem.
Clearing App cache on your device
If you are seeing a 400-page-long error when trying to log in to YouTube, it means that your app’s cache has become full.
In order to clear app cache on your device, go to ‘Settings’ on your phone then click on ‘Apps & Notifications’ and find ‘Vanced’ in the apps section, you may also find this in the Recently opened apps section. Next, click on ‘Storage & cache’ and you’ll find an option to clear cache in it.
Clear watch history, search history and all cached data in Vanced app
To fix the issue, you can also try to clear watch history, search history and all cached data in Vanced app. You can do it by opening the Vanced app then tap on the Library now scroll down and here you will find options to clear watch history, search history and all cached data from the app.
Uninstall and Reinstall the app
If you are still facing the YouTube Vanced error 400, you can also try to uninstall and reinstall the app Vanced app on your device. To uninstall, the YouTube Vanced app, simply tap on the app icon for a second and move it to the uninstall to remove it from your device. Now, Go Google Play stores and download the YouTube Vanced app again and see if this fixes the issues.
Check date and time settings on your device
Additionally, you can also try check date and time settings on your device. To check, go to your phones Settings scroll down and click on ‘System’. Here, you will see the ‘Date and Time’ option. Now, check if the date and the time is set correctly, if not then make it correct.
If you are using any VPN service to hide your device’s IP address then this could also be an issue that is causing the YouTube Vanced Error 400 on your device. Go and try to disable any VPN service running and then see again if this fixes YouTube Vanced Error 400 can’t login issue.
These were all the fixes for the YouTube Vanced Error 400. Try them all one by one and see if any of the methods fixes the issue for you. If you have anything to share you can drop it in the comments section down below.