Try long-pressing the app icon, going to App Info , and ensuring all Permissions (specifically Storage/Files) are granted manually. Final Thoughts

The original retail version of MC4 often requires a one-time online license verification. Furthermore, newer versions of Android changed how the OS handles OBB (data) folders, causing the game to black screen or crash on startup. The version includes:

Removes the need to connect to Google Play servers to verify the purchase.

You will need to locate a trusted source for the Modern Combat 4 APK and the OBB Data (usually a ZIP or RAR file). Ensure the OBB folder is named correctly: com.gameloft.android.ANMP.GloftM4HM . Step 2: Enable Unknown Sources