If you are encountering persistent errors and do not require proprietary SKF API calls (common in Chinese cryptographic standards like GM/T 0018), consider these alternatives:
: Install the Windows driver files onto the host PC before connecting the device. ActiveSync/WMDC skf usb driver
pnputil /add-driver C:\SKF_Driver\skf.inf /install If you are encountering persistent errors and do
: If you encounter errors on Windows 7, ensure you are using the latest version of the SKF USB Driver compatible with your OS. skf usb driver