Before connecting your phone, install Samsung USB or COM port drivers for your model.
Right-click Samsung_2G_Tool_V3.5.0040_Setup.exe → Run as Administrator. Samsung 2g Tool V3.5.0040 Setup
Turn off your Samsung 2G phone. Connect the data cable (or use a USB-to-serial adapter if needed). Before connecting your phone, install Samsung USB or
Due to its nature, Windows Defender or other AV may block the setup. Disable real-time protection only during installation. Before connecting your phone