Iphone 3GS 4.2.1
 

Hey guys I think I might've totally screwed up my Iphone..So I updated to 4.2.1 because it was originally jailbroken but I reset everything not thinking it would also erase the firmware. I tried to use redsn0w 0.9.6b5 to jailbreak it. I have the Iphone 3gs with the newer bootrom and when the jailbreak process on the phone finished, the phone stayed on the apple boot logo forever. So I restored it again and this time added the ipad baseband to unlock it and it still wouldn't boot. Now when I try to restore it Itunes gives me an error 1015. I didn't save my SHSH files to Cydia when it was pre-jailbroken and I'm running Windows 7. When I turn on the IPhone it just goes to the connect to itunes logo.