No PX4Flow tab in QGroundControl

I am trying to configure my PX4Flow camera to focus its image. I connected the it directly to QGC usign USB but it is not detected automatically on firmware upgrade tab,neither does the PX4FLow tab appears. Is there any step I am missing over here?

Only think is to try a different usb cable

Thanks for the reply, it was indeed USB cable issue, I changed the cable and it worked.