public static void ForceLockToDeviceInit()
 {
     if (string.IsNullOrEmpty(ObscuredPrefs.deviceId))
     {
         ObscuredPrefs.deviceId     = ObscuredPrefs.GetDeviceId();
         ObscuredPrefs.deviceIdHash = ObscuredPrefs.CalculateChecksum(ObscuredPrefs.deviceId);
     }
     else
     {
         Debug.LogWarning("[ACTk] ObscuredPrefs.ForceLockToDeviceInit() is called, but device ID is already obtained!");
     }
 }