Odin is leaked software from Samsung, as its name suggests, a very powerful piece of software. It allows the user to flash new ROMs or individual partitions to their Samsung Galaxy Android devices, even if it’s not otherwise bootable. This recovery capability is used by Samsung and its authorized parties to update and repair Galaxy S devices, though it’s equally useful to those of us who wish to modify our phones. Odin makes it possible to recover your device in even the most dire of software situations, meaning it’s nearly impossible to damage a Galaxy S device to the point it can’t be repaired.
Now the latest odin3 application version 3.0.4 was leaked and available for Download now. This Odin work fine to Samsung Galaxy S3. So, Odin3 is important tool application for you to flash custom Rom and install Root kernel!
Download Odin3 v3.04: Link