Wow, I can't even update... says the download is corrupted! First time this has ever happened to me. I've tried 3 times now and keep getting this message: (see screen shot)
May I suggest deleting the ipsw file on your computer? It's located in the ~/Library/iTunes/iPhone Software Updates/ folder.
That's the thing, it's not even there. Once I get that error message, it automatically deletes the download. And every time I try to redownload I get the same message. And my download is pretty fast since I have a highspeed connection, so it's not timing out or anything...
Anyone have a link to the firmware download from the Apple site so I can try and manually do this?