You must install the CH341 USB Driver (or FTDI driver) for Windows to recognize the cutter as a COM port.
: For Windows users, sometimes, updates through Windows Update can include device drivers. Checking for updates might yield results relevant to your device. Seiki 870t Driver UPD Download
Open your software (e.g., FlexiStarter, SignCut, or Artcut). You must install the CH341 USB Driver (or
Once you have the Seiki 870t Driver UPD INF file, follow these steps: follow these steps: