Your antivirus (especially Windows Defender) quarantined the decryption helper. Solution: Add the samfirm-a.i.o-v1.4.3 folder to your antivirus exclusions list.
Power on your locked Samsung device and connect it to a Wi-Fi network. Launch Tool: Open SamFirm A.i.O v1.4.3 as an administrator. samfirm-a.i.o-v1.4.3
Here is a comprehensive guide on how to use it safely. samfirm-a.i.o-v1.4.3
Get the latest official stock ROMs for Samsung devices by simply entering the Model and Region (e.g., SER for Russia or SEK for Ukraine). samfirm-a.i.o-v1.4.3
Allows users to bypass Google account locks by triggering browser windows (YouTube, Maps, Galaxy Store) directly from the PC.
Click "Start" and wait for the "View" prompt on your phone screen to open the browser or Galaxy Store.