How to Downgrade VPN App to Fix Crash Issues

VPN apps sometimes crash after an update, leaving you without protection. If you're using MD Proxy VPN, Nur Tunnel VPN, Ultra Tunnel VPN, or Marvs Go VPN and run into issues, downgrading to a previous version can be a quick fix. In this guide, I'll show you how to safely downgrade your VPN app to stop crashes. And remember, you can always grab a fresh voucher for just $1 to get 30 days of premium access on all four apps—no hidden costs.

Why Do VPN Apps Crash After Updates?

Updates are meant to improve performance, but sometimes they introduce bugs. Common causes of crashes include:

• Incompatibility with your device's operating system version
• Conflicts with other apps or system components
• Corrupted installation files during the update
• Server-side changes that mismatch the app's code

When this happens, the app may close unexpectedly, freeze, or fail to connect. Downgrading to a stable version can restore functionality until the developer releases a fix.

Before You Downgrade: Back Up Your Settings

Before you uninstall or install an older version, make sure you don't lose your configuration. Many VPN apps store settings locally, so backing up is a smart move.

• Note down your server preferences, protocol choices, and any custom DNS settings.
• If the app offers an export option, use it to save your settings to a file.
• Ensure you have your voucher code handy—you'll need it to reactivate premium features after reinstalling. You can always find your code in your dashboard at vpnprous.com/voucher.html.

How to Downgrade on Android

Android allows you to install apps from sources other than the Play Store, which makes downgrading easier. Follow these steps:

1. Uninstall the current version of the VPN app from your device.
2. Find a reliable source for the older APK. You can check sites like APKMirror, but always verify the authenticity to avoid malware.
3. Download the APK file that matches the version you want.
4. Open the file and allow installation from unknown sources if prompted.
5. Install the APK and launch the app. Log in with your credentials and enter your voucher code if needed.

Note: If you have a premium subscription, it's tied to your account, so you won't lose access as long as you have your voucher.

How to Downgrade on iOS (iPhone/iPad)

iOS is more restrictive, but you can still downgrade using these methods:

• Use iTunes (Windows) or Finder (Mac): If you have a backup of the app's IPA file, you can install it via your computer. But this is rare.
• Check for older versions in your purchase history: Sometimes you can download a previously purchased version if the developer hasn't removed it.
• Use third-party app stores: Services like AltStore or TutuApp allow sideloading but require more setup and may violate Apple's terms.

For most users, the simpler approach is to wait for a fix or contact support. However, if you must downgrade, ensure you back up your iPhone first to avoid data loss.

Alternative: Clear Cache and Data Instead

Before downgrading, try clearing the app's cache and data. This often resolves crashes caused by corrupted temporary files.

On Android: Go to Settings > Apps > [VPN app] > Storage > Clear Cache and Clear Data.

On iOS: Delete the app and reinstall it from the App Store (this resets data but keeps your account).

After clearing, log in again and test if the crash persists. If it does, then downgrading is the next step.

How to Get Your VPN Working Again After Downgrade

Once you've downgraded, you'll need to reactivate your premium access. Here's how:

• Open the app and go to the subscription or activation section.
• Enter your voucher code (format: XXXX-XXXX-XXXX-XXXX).
• If you don't have a code, you can purchase one for just $1 at vpnprous.com/voucher.html. This gives you 30 days of premium on all four apps: MD Proxy VPN, Nur Tunnel VPN, Ultra Tunnel VPN, and Marvs Go VPN.

After activation, test your connection. If the app still crashes, try an older version or contact our support team.

🌍 24 Server Locations — Pick the Closest for Maximum Speed

Bangladesh USA UK Germany Japan Singapore India UAE Netherlands Canada Australia France Sweden South Korea Brazil Turkey Malaysia Philippines Indonesia Vietnam Pakistan Nepal Sri Lanka Saudi Arabia

📲 Download the 5 VPN Apps — Free

All 5 apps are free on Google Play. Buy one $1 voucher and unlock premium on every app.

Frequently Asked Questions