Have you tried getting the update pack and running an update? This site says that the update should run automatically when the card is placed back into the device, but it will probably give you the files too.
I don't have the fx2000, but I got the information from here:
On step one though, don't go to ancel.com, go to anceltech.com, search for the fx2000, and scroll right to the bottom of the page to find the Downloads link, in the footer below the content.
Like I said, I don't have the fx2000, so I have no way of knowing if this will work, or if it will make things worse. I've used updates in similar situations in the past, but that's no guarantee.
Good luck ๐