Odin (firmware flashing software)

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Odin 3.10.6 (software).jpg
Odin 3.10.6 running on a Windows machine
Initial releaseJanuary 2016; 5 years ago (2016-01)
Stable release
3.14.1 / September 2019; 1 year ago (2019-09)
Operating systemWindows
Available inEnglish

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.[1]

There is no account of Samsung ever having officially openly released Odin, though it is mentioned in the developer documents for Samsung Knox SDK[2] and some documents even instruct users to use Odin.[3] Some other docs on Knox SDK reference "engineering firmware",[4][5] which presumably can be a part of the Knox SDK alongside with Odin. Publicly available binaries are believed to be the result of leaks.[6]


Graphical user interface for Heimdall running on Ubuntu

Heimdall is a free/libre/open-source, cross-platform replacement for Odin.[7] The name Heimdall, like Odin, is an allusion to Norse mythology; both Odin and Heimdall are among the deities of the Norse pantheon.[8]


  1. ^ "How to Save a Bricked Android Smartphone". TechPP. 2012-08-22. Retrieved 2020-05-13.
  2. ^ "Knox Glossary of Terms and Acronyms" (PDF). Samsung.com. Santa Clara, California: Samsung. 2013-10-17. Archived from the original (PDF) on 2017-10-30. Retrieved 2019-07-04.
  3. ^ "How Can I Change or Download the Device Firmware?". Samsung Enterprise Alliance Program. Archived from the original on 2018-06-13.
  4. ^ "How Can I Check If My Device Firmware is an Engineering or Commercial Build?". Samsung Enterprise Alliance Program.
  5. ^ "How Can I Make My App Work Properly on a Device with Engineering Firmware?". Samsung Enterprise Alliance Program.
  6. ^ Crider, Michael. "How to Manually Update Your Samsung Phone with Odin". How-To Geek. Retrieved 2020-05-13.
  7. ^ "Heimdall". Retrieved August 20, 2018.
  8. ^ "Heimdall". glassechidna.com.au. Retrieved 2021-01-12.