I can provide specific or download links based on those details!

Artcut is the most common software bundled with Redsail machines.

If you move the USB cable to a different slot on your PC, the COM port number might change. Always check Device Manager.

Ensure the baud rate on the plotter's physical screen matches the software (9600 is standard).

Look for "Other Devices" or "USB-Serial Controller" with a yellow warning icon.

This is where most users run into trouble. The software must match the Device Manager settings.