I am assuming that you’ve tried several other cards and that your card is of the right speed and specifications?
If that is the case...
Unfortunately, short of attempting to re-upload the software, which you appear to have done already, there aren’t any other options open to you other than taking the camera in for service.
Obviously this isn’t a common problem because by now there would be many more who would have experienced this and even if this was the case this would offer only the limited solace of knowing that you are not the only one but wouldn’t change much in the way of solving the problem.
There isn’t a reset button that we, the Fuji populace, know of and unfortunately they, the Fuji Gods on top of their mountain, are the only ones who can help you in your times of trouble.
