Before connecting your phone, install the SPD_Driver_Setup.exe . You will typically need to disable Windows Driver Signature Enforcement (Shift + Restart -> Troubleshoot -> Startup Settings).
Ensure the SPD USB Driver is installed on your Windows PC. spd keypad unlock tool link
While the SPD Keypad Unlock Tool Link is a reliable solution, there are some precautions to keep in mind: Before connecting your phone, install the SPD_Driver_Setup