Odin is a utility software developed and used internally by Samsung which can be used to flash a Custom Recovery firmware image (as opposed to the Stock recovery firmware image) to a Samsung Android device. It is also used as a way of unbricking an Android device. There is no account of Samsung ever having officially *openly* released it, though it mentions it in the developer docs for Knox SDK and some docs even instruct the users to use ODIN . Some other docs on Knox SDK reference "engineering firmware", which presumably can be a part of the SDK alongside with ODIN. Publicly available binaries are believed to be the result of leaks. Odin is Windows-only software, Odin Supported any Windows OS on Windows 10, Windows 8.1, Windows 8, Windows 7, Windows XP . providing no support for other operating systems, though it is possible to use Wineskin on the Odin executable, allowing it to run on OS X.
There is a free/libre similar software called Heimdall.
Video Odin (firmware flashing software)
Benefits of Odin Tool
Odin is a program run on a Windows PC that can load and flash firmware image files ("ROMs") onto Samsung smartphones. It Can communicate with a smartphone using USB.
- Flashing Stock firmware when Samsung phone is bricked or stuck
- Flashing Custom firmware
- Flash Stock recovery
- Flash kernel
- Gain root access by flashing root packages
Maps Odin (firmware flashing software)
References
Source of article : Wikipedia