An unlocked iPhone 3GS went wrong

[angiehue]

I have an 3GS unlocked iPhone which went wrong after I tried to download songs from itune. It kept saying "The iPhone "iPhone" could not be restored. An unknown erro occured (1015)" I can't use the phone at all. On the screen, it freeze with icon of iTunes. Can someone help please. I am using pc, not Mac. I don't have at&t as carrier. Thanks!

[Simon]

Check here for help with that: [How To] Fix 1015 error after updating to iPad baseband and trying to restore