Right now as it is, I tried to restore to fresh iOS4.2.1 (from a JB iOS4.1), but it didnt work. I got an Error: iPhone could not be restored. An Unknown error occured (10) Now I am stuck looking at the Plug and iTunes logo. I did restore correctly, I have the latest iTunes, I did turn off firewall, I did put it into DFU mode, I downloaded iOS4.2.1 from Felixbruns.de, in fact I used 3 different iOS 4.2.1 files WTF? I cant even seem to downgrade back to iOS 4.1 using the host file IP address method (getting iTunes to talk to Cydias server) I tried restoring to fresh iOS4.1 and I get: iPhone could not be restored. An Unknown error occured (1006) Can you guys please help me out?