. The device firmware must match the installed driver version to function correctly. Latest stable versions often include improvements for J2534 compatibility with dealer software like Clone (SM2 Pro Clone)
A frequent support ticket revolves around mixing up firmware with drivers. scanmatik 2 pro firmware
If you are using a of the SM2 PRO (often labeled "SM2 PRO VCI"), do not use official software or allow the device to update via the internet. scanmatik 2 pro firmware