Iambian's deleted the OS. Fixable by resending a new OS. BrandonW, however, deleted the certificate (some ASM stuff). With the certificate gone, it is no longer possible to send anymore calc OS to the calc, I believe, so if you lose your OS, your calc is permanently unuseable. That's unless there's actually a way to put a new certificate on the calc, though. I'm not sure if what I say is really exact but I heard bad things about certificate deletion.
I read this way too late, so well, I'll just answer now.
You CAN fix a certificate if you have an OS without too much trickery, and vice versa. It is far harder to fix a calc when both are gone, but I believe Brandon has a supermegafix0r routine on his site, somewhere, but it might only work under certain conditions.
