Turn off your Wi-Fi and Cellular Data before launching the game for the first time. Running the game entirely offline bypasses the defunct validation servers. 4. Audio Crackling or Rapid Textures
The OBB file is either in the wrong place ( Android/data instead of Android/obb ) or the APK you are using is not the patched/cracked version. zombie infection gameloft apk obb fix
Newer Android versions have stricter "Storage Access Framework" rules. Permissions: Turn off your Wi-Fi and Cellular Data before