Forget about manually typing in your Country Code and Model Number. can automatically detect the device connected to your PC via USB, ensuring you download the exact firmware version required for your region.
Microsoft .NET Framework 3.5 (or higher) and Microsoft Visual C++ 2008/2010 Redistributable packages installed. Step-by-Step Installation
Monitor the progress bar. Once the download hits 100%, do not close the app immediately; allow it up to two additional minutes to complete the automated decryption process. samfirm tool v131 exclusive
Check if you want the full service repair firmware. Click Download .
Flashing full binaries utilizing the standard CSC file will completely wipe internal storage. Always back up contacts, media, and accounts via Smart Switch before proceeding. Forget about manually typing in your Country Code
Last updated: April 2026
Her S9 began to cycle through bootloaders in fast succession—v5, v6, v7—each one a version that had never existed publicly. The phone got hot. Then, a folder mounted on her PC: Z:\janus_mirror . Step-by-Step Installation Monitor the progress bar
You will need a 3-letter code representing your region or carrier (such as XAA for US unlocked, or BTU for the United Kingdom). Fetch the File:
Ensure you have enough disk space (usually 15GB+) and that the Visual C++ Redistributable packages are correctly installed. Tool Won’t Open: Right-click and Run as Administrator . Final Verdict
Download the SamFirm Tool v13.1 Exclusive archive from a trusted mobile development forum or repository.
SamFirm Tool v1.3.1 , developed by Mahmoud Salah , is a specialized utility primarily used for bypassing FRP (Factory Reset Protection)