public string ChangePassKey(string vslaCode, string sourceImei, string oldPassKey, string newPassKey)
        {
            int key = VslaUtils.GeneratePassKey();

            return(key.ToString("00000"));
        }
        public string GeneratePassKey(string vslaCode, string sourceImei)
        {
            int key = VslaUtils.GeneratePassKey();

            return(key.ToString("00000"));
        }