Odin is a software tool for PC that is used for installing stock firmware on Samsung Galaxy phones manually. New version of Odin 3.13.1 has been released with Galaxy Oreo firmware compatibility. This version of Odin supports Samsung’s new LZ4 lossless compression method, so users can install Android 8.0 Oreo firmware manually on their Samsung Galaxy phone without any issue or extra workaround.
Odin is not just firmware flashing tool for Samsung Galaxy phones. It will also used to flash custom recovery, install individual section of a stock firmware such as modem, PIT file, CSC file, etc. We can also use it to wipe the device completely, and return it to stock if needed. Now, we have got latest Odin 3.13.1 with Oreo firmware support.
This version of Odin (3.13.1) is an update on Odin 3.12.3 and allows you to manually flash newer Samsung firmware with compressed binaries (lz4) on Galaxy phones. If you are using newer Galaxy phones, such as Galaxy S8, S8+, Note 8, Galaxy S7, Galaxy S7 Edge, then we recommend using the latest version Odin.
For your information, tech-savvy users can download Samsung stock firmware using Samfirm tool or from web service like Sammobile.
Once the download process is completed, go to the folder where you have downloaded the package and extract the contents of the .zip present inside.
Download latest version of Odin 3.13.1 from here and ten follow the instruction as given here to install the firmware using Odin. The procedure is identical for almost all Samsung Galaxy series devices. (Source – XDA)