I doubt very much it needs repairing. I presume you do have an Audya 4?

First of all make sure the Audya and the computer are talking to each other. If you plug the audya into your PC, does it say USB connected? If no your probably in USB HOST mode.

If the answer is YES, then un-install the program from your computer using the add/remove programs option in control panel, then re-install the program to your computer, once you have done so connect your computer to your Audya, wait until you see "USB Connected" on the Audya and then launch the updater program.

Let me know how you get on.