No installation required; just run the executable.
You must know your exact model number (e.g., SM-G991B) and your CSC (Country Specific Code, e.g., XSG for UAE or VZW for Verizon). You can find these in . 2. Enter Device Details Open SamFirm.exe . In the Model field, type your device code. In the Region field, type your 3-letter CSC code. Check the box for Auto under the "Check Update" section. 3. Fetch the Firmware Click the Check Update button. samfirm tool v4.7.2 download
The tool will display the latest version, file size, and name. 4. Download and Decrypt Click . Select your save location. No installation required; just run the executable