Free Fire MAX keeps showing Server Login Failed: 400; how can I fix this error?

The “Server Login Failed: 400” error in Free Fire MAX can be caused by a temporary server issue, an unstable internet connection, outdated game files, or a login-session problem. Try these steps in order to restore access without risking your account.

1. Switch your internet connection. Change from Wi-Fi to mobile data, or vice versa, and disable any VPN or proxy you may be using. Close the game completely and reopen it.

2. Clear the game cache. On Android, go to Settings → Apps → Free Fire MAX → Storage → Clear cache. Avoid clearing app data unless your account is securely linked and you know your login method.

3. Update the game. Check Google Play or the App Store for an available update, restart your device, and try signing in again. If the error continues, check the official Garena support center for troubleshooting guidance.

4. Protect your account. Avoid third-party websites claiming to verify your account or bypass Error 400; use only official Garena channels.

If none of these steps works, consider filing a complaint on Xolvie with your device model, login method, region, and a screenshot of the error.