OTA (Over-the-Air) Firmware Downloader: Is an app that can be used to upload firmware updates via Bluetooh. OTA Firmware Downloader / What's New in vUnknown First version. Choose Download Locations for OTA Firmware Downloader vUnknown Get it on Google Play JavaScript is not enabled, please check your browser settings. OTA Firmware Downloader / Tags Firmware, Downloader,