OK, so I gave my iPad 2 to my son, taking everything off pertaining to me, but not totally resetting so he could retain the jailbreak. Shouldn't have. When he tried to sink, it would keep putting my name up in the iTunes telling him he couldn't, blah, blah. Everything was turned off pertaining to me, but something stuck. Even name was his name everything. So he decided to reset all. Yep. Was stuck on the plug into Apple, so I had him put it into DFU mode. The computer is recognizing DFU mode. First got the 1601 error (think it was) Had to uninstall iTunes. The device appears to still be in DFU mode. So I get the proper file DL'd to his desktop -- am doing this remotely as it's hard to explain and he understand. Am trying not to just update it to 5.1. I have the file for 5.1 ipad two wifi/3G with AT&T. Still recognizing that it's in DFU mode, giving the message to restore. Shift/click restore. Starts extracting -- get the dreaded 21 error code. I have everything turned off on Norton's, checked to see if he perhaps had windows defender running. Something was turned on even tho Norton's totally off. STILL getting the 21 error now. What do I do? Is it possible he didn't put it into DFU mode properly and I need to have him redo? It's a blank screen...but been plugged and unplugged several times (even tho told him not to), but iTunes is still recognized it need to be restored. Checked updates on Windows...all up to date. iTunes the latest since I uninstalled everything -- everything pertaining to iTunes, but thinking, not sure if I deleted anything in the system file, which I think I had to do before -- this is a Win7 64 bit computer. I can't find an answer to this on in my search. HELP!