Odin Flash Tool or Samsung Odin Downloader is a utility software developed and used internally by Samsung. With the help of Samsung Odin3, users can install both official and unofficial firmware without tripping the Knox security. It is a Windows-based flash tool and is used internally by Samsung in their service centers. Samsung Odin is the official firmware flashing tool for Android-based Samsung devices. Download Samsung Odin Flash Tool Latest and Older Versions