Reply to DDJ SX with Traktor

I've spent a lot of time trying to get my DDJ SX to work with traktor. I read the manual for the DDJ to put into "utility mode" by unplugging the usb and holding the play and shift then turning on the power button while holding the play and shift button. Only the left side of the DDJ is lit up then I press the left keylock button.. Am I doing this procedure right? I then plug the usb in.... fire up Traktor 2.6 and load in Vipers TSI file using the big import button on the bottom.... nothing happens. What am I doing wrong?!