Due to its nature, Windows Defender or other AV may block the setup. Disable real-time protection only during installation.
Before connecting your phone, install Samsung USB or COM port drivers for your model. Samsung 2g Tool V3.5.0040 Setup
It's important to clarify that is not an official Samsung software. It is a third-party, unofficial flashing, unlocking, and repair tool often used for older Samsung feature phones (2G/GSM era, e.g., Samsung C3010, E250, etc.) and some early smartphones. Using such tools can be risky, and they are often flagged by antivirus software as potentially harmful (hacktool). Due to its nature, Windows Defender or other
Right-click Samsung_2G_Tool_V3.5.0040_Setup.exe → Run as Administrator. Due to its nature