From what I've seen - stay away from trying to update firmware on the SCTs. I have NEVER gotten it to work - I always stopped it after a couple hours of zero progress. Luckily, mine never bricked. Apparently it is supposed to take 5 minutes, but mine never did. I know that doesn't help you right now.
Anyway, hopefully someone can send you a file. If not, get on the phone with SCT first thing in the morning. They are pretty good with remote support from what I've read, but getting in touch with them can take some doing.