I have also tried putting them into dfu mode to see if that would do anything. Same message. Can't restore or update the software. Both phone and iPad are on 4.2.1 with greenpoision jailbreak. Rc5.
It seems like iTunes is trying to restore, lets say the ipad, with iphone firmware. Or something along those lines.
I once downloaded the wrong firmware from Felixbruns and didnt realize it. I was trying to install ipod firmware on my iphone and kept getting that same error. Then i realized i had ipod firmware instead of iphone.
I have the same issue on my iPad 2, I've had it since 4.3.2 came out. Did you try downloading the version of firmware you have installed on the device and doing the shift+restore in iTunes? I'm just about to try that myself. It seems to fail when trying to authorize with Apple's servers for me.
Just remove any physical signs of a JB. I took my wife's phone into the Apple store whilst jb. No issues with them. They took the phone, plugged it in to their deal behind the genius bar and gave it back to me fresh 10 minutes later
got the fix for you, reinstall iTunes. You don't need to uninstall what you have just reinstall from the latest file so it replaces whatever file has become corrupt. I have done it once on my own iTunes(Mac) and a co-worker(Windows). It worked both times as soon as I did it the upgrade worked just fine. If you're on Windows you get the option to repair or remove so choose repair and let it do it's thing.
really? wow I just did another co-worker's computer and that worked again. I have no ideas for you, take it in to an Apple store and have them try to upgrade it. The upgrade will remove the JB and like I've said it's not like the JB means they'll take the device away or mark your name in some blacklist. I just went to the genius bar today with my JB phone and got them to clean out the headphone jack. He knew it was JBen and it wasn't a problem.
you know what i just got it figured out, and am now running stock again.
i googled it, and came to apples support site for all the different errors. i found the error, and everything on the list i tried except one thing...i made a new user account on my computer, same computer that wouldnt let me restore it before, and redownloaded the firmware. then it restored, but got stuck at the connect to itunes screen, error 1013. looked that up. had to edit the host file, and that worked, now i ready to swap out the phone due to home button issue tomorrow.
i appreciate all the help guys. this solution should be a sticky, i guess quite a few people are having this issue