That is a scam. Legitimate offline games never require phone hardware identifiers. Uninstall immediately and run a malware scan (Malwarebytes for Android).
Fortunately, there's a way to play MU Online on your Android device offline. You'll need to download and install a third-party app that allows you to play the game without an internet connection.
3 GB minimum (4 GB recommended to avoid memory crashes in high-density maps like Blood Castle). Storage Space: 1.5 GB to 3.5 GB of free internal space. Troubleshooting Common Errors Game Closes Immediately After Launch (Force Close) mu offline android link
Most offline versions include a Game Master (GM) console. You can generate free diamonds, gold, Tier 15 wings, and perfect excellent gear instantly.
Most MU Offline Android versions work best on Android 8.0 through Android 13/14. Troubleshooting Common Issues That is a scam
To ensure a safe installation, use these official platform links:
This method involves running a localized PC MU server (usually Season 2, Season 6, or Season 8) inside an Android Linux terminal emulator like Termux, then connecting to it using an Android MU client. This offers the most authentic PC-like experience but requires technical setup. How to Download and Install MU Offline on Android Fortunately, there's a way to play MU Online
Turn off your Wi-Fi or Mobile Data to test the offline capabilities, launch the game, create a character, and enjoy! Gameplay Tips for MU Mobile Offline
Always run downloaded APK files through an online scanner like VirusTotal before installing them.
These official and licensed versions are available on the Google Play Store and include "offline" progression systems: MU Immortal