DDJ-1000

Hi.

I have recently purchased a DDJ-1000 controller from a warehouse sale.

The items included with the purchase was purely a DC cord, and no USB cable (for PC).

I am trying to install the firmware for the controller, whilst using the USB cable from a DDJ-SB3 - and this installation cannot occur due to 'unrecognised DDJ-1000'.

Is this due to the USB cable? If so, where can I purchase a DDJ-1000 USB cable?

Thank you.