The Creality Printers use a FTDI F232R USB to Serial adapter chip for them to use USB. If you are having issues communicating with your board try installing one of the drivers below.

Windows Driver:

FTDI F232R Windows Driver

How to manually install Windows drivers:

Mac Driver:

FTDI F232R Mac Driver

These drivers are provided as a convenience and are provided as-is with no warranty or support from TH3D.