public static string FOTAInfoFetch(string model, string region, bool latest = true) { try { using (WebClient webClient = new WebClient()) { string xml = webClient.DownloadString("http://fota-cloud-dn.ospserver.net/firmware/" + region + "/" + model + "/version.xml"); return(!latest?Xml.GetXMLValue(xml, "firmware/version/upgrade/value", (string)null, (string)null).ToUpper() : Xml.GetXMLValue(xml, "firmware/version/latest", (string)null, (string)null).ToUpper()); } } catch (Exception ex) { return(string.Empty); } }