public async Task <ActionResult> DownloadFirmwareFile(int id)
        {
            FirmwareUpgrade upgrade = await upgradesService.GetFirmwareUpgradeFile(id);

            if (upgrade != null)
            {
                return(File(upgrade.FileData, "application/octet-stream", string.Format("{0}_upgradeFile.hex", upgrade.Name)));
            }
            else
            {
                return(null);
            }
        }