Odin (firmware flashing software)

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Odin 3.10.6 running on a Windows machine

Odin is a utility software developed and used by Samsung internally. It can be used to flash a custom recovery firmware image (as opposed to the stock recovery firmware image) to a Samsung Android device. Odin is also used for unbricking certain Android devices.

There is no account of Samsung ever having officially openly released Odin, though it is mentioned in the developer documents for Samsung Knox SDK[1] and some documents even instruct users to use Odin [2]. Some other docs on Knox SDK reference "engineering firmware"[3][4], which presumably can be a part of the Knox SDK alongside with Odin. Publicly available binaries are probably believed to be the result of leaks.[5]


Odin is accessible only on Windows OS. Although the program is not supported on other operating systems, it is possible to use Wineskin to run the Odin executable on OS X.

Odin is a program that runs on a Windows PC. The software can load and flash firmware image files (“ROMs”) onto Samsung smartphones. It can communicate with a smartphone via USB.

  • Flashing stock firmware when Samsung phone is bricked or stuck
  • Flashing custom firmware
  • Flash stock recovery
  • Flash custom recovery
  • Flash kernel
  • Gain root access by flashing root packages


Graphical user interface for Heimdall running on Ubuntu Linux.

Heimdall is a free/libre/open-source, cross-platform replacement for Odin.[6] The name Heimdall, like Odin, is an allusion to Norse mythology; both Odin and Heimdall are among the deities of the Norse pantheon.

There is also an online tool called JOdin3 which helps in flashing Samsung firmware from the browser using the Java Runtime Environment.[7]


  1. ^ http://www.samsung.com/at/business-images/resource/solution-brief/2013/12/samsung_knox_glossary-0.pdf
  2. ^ "How can I change or download the device firmware? - SEAP". seap.samsung.com.
  3. ^ "How can I check if my device firmware is an engineering or commercial build? - SEAP". seap.samsung.com.
  4. ^ "How can I make my app work properly on a device with engineering firmware? - SEAP". seap.samsung.com.
  5. ^ "Where does Odin come from ?". XDA Developers.
  6. ^ "Heimdall". Retrieved August 20, 2018.
  7. ^ JOdin3