If VirtualDJ Pro does not recognize the DJ controller,
- It is either an old version of VirtualDJ Pro, and you should use a newer version; or
- The controller mapping is not included in VirtualDJ, and you must download the MIDI mapping for VirtualDJ Pro available on our Technical Support website (https://support.hercules.cn: on the controller's page, in the MIDI Mapping section, you can download the mapping of DJ controllers not pre-mapped in VirtualDJ), and install it by following the instructions available in the PDF document included in the zip file.