It sounds like you may be referring to a patched or modified version of a file named odin3v31313bpatched.zip — likely related to Odin, the Samsung firmware flashing tool for Windows.
No source code – You can’t verify what was patched. The original Odin is closed source; patched versions are reverse-engineered.
The "3B" patched variant is widely considered superior for two primary reasons: odin3v31313bpatched zip better
Conclusion
Odin3 v3.13.1 Patched is a specialized, unofficial version of Samsung's proprietary flashing tool designed to bypass specific security checks that often block firmware installations. While it is highly effective for advanced users, it carries inherent risks because it is not an official Samsung release. Key Features and Improvements It sounds like you may be referring to
Due to the legal restrictions surrounding modified Samsung tools, you will not find this on the official Samsung website. You must source odin3v31313bpatched zip from reputable development forums (XDA Developers, Samloader, or known Git repositories).
This version is the "gold standard" for enthusiasts who need to cross-flash carrier firmware or install custom recoveries where the official tool fails. However, for a standard user performing a simple factory restore, the unpatched official version is recommended to maintain safety guardrails. The "3B" patched variant is widely considered superior
When you extract the Odin3_v3.13.1_3B_Patched.zip, you will primarily interact with these five slots for your firmware files: BL (Bootloader): Contains bootloader-related files.