Well, I downloaded the updater, ran the program, and copied the two files to an SD card.
But when I try to update the calc, it tells me:
NO CARD, OR ERROR
CHECK CARD
THEN PRESS ANY KEY
But the card's there-- I can see files on it from the standard calc screens. It passes the calc's "card test". And the files are on the card (which I can verify with the Filer).
The only out of the ordinary thing is that when I ran the installer on my PC, it said there was a problem executing "conn4.exe". But the files appear to be OK.
Any ideas?