Once complete, the tool will auto-decrypt the .enc4 file into a standard .zip archive. Inside that ZIP, you will find the four essential files for Odin:
You are now ready to flash via Odin3.
No installation is required—it’s a portable tool. Samfirm Tool V1.3.1 By Mahmoud Salah
It is important to acknowledge the creator. Mahmoud Salah is not just a developer; he is a pillar of the Samsung repair community. His other tools (like Salah Tool for FRP bypass) have saved millions of phones from being paperweights. The Samfirm Tool V1.3.1 represents an era where developers built tools out of necessity, not monetization. While Salah has since moved on to other projects, his V1.3.1 remains a testament to clean, efficient code. Once complete, the tool will auto-decrypt the
Search for a trusted source (Github or XDA Developers). The filename is typically SamFirm_v1.3.1.zip or SamFirm_v1.3.1_by_Mahmoud_Salah.rar. Always verify the SHA-256 checksum to avoid malware. The original tool is less than 1 MB. You are now ready to flash via Odin3