The error messgae in the article deggie referred might not be the exact same one as yours, but both those kinds of errors are somewhat related, so the technique in the article is worth a try. (I have seen a recent spike in the updating or restoring -48s, rather than syncing, but I'm not sure what is causing them.)
Okay, let's try something different.
With your iPod disconnected (and iTunes closed), try switching your firewall and antivirus/antispyware settings to OFF. (Whatever security software you use, it doesn't matter).
Close the program, and launch iTunes. Then, when iTunes has loaded up, connect your iPod.
Try updating your iPod's software, and see if you still get that -48 when updating.
By the way, I've got a couple of questions:
What option did you choose when attempting to update your iPod? "Download & Install", or "Download Only"? Also, is the software already downloaded onto your computer, and then you got the -48?
I can't be too sure, but I'm figuring, in your case, that:
- You had "Download and Install" selected when you attempted to update your iPod, and:
- The download was mostly complete, perhaps with only 1 MB left to download, when you got the -48 error message.
Am I anywhere close in my guess, or no? Also, if you can remember any other details when you first tried updating your iPod's firmware, perhaps info on when you got the -48, etc, that would help.
-Kylene