I bought this phone and the other guy left all of his info on it, so I wiped it using the Reset All Content And Settings option. Little did I know, it was jailbroken. So, it of course froze on the Apple logo on restart. I thought "no problem, I've run into this dozens of times". So, I put it in DFU mode and go to restore it to 4.2.1. Here's where the weird part comes in: at the end of the restore, iTunes gives me the 1015 error code and the phone puts itself in Restore Mode. I'm a little confused at this point since the error usually only pops up during downgrades, not a vanilla restore. Undeterred, I use 1015 Error Fixer (I've also used TinyUmbrella) to kick it out of Restore Mode and expect to see it boot up as normal. No dice. It just sits there and cycles through attempts to reboot until the battery gives out. I've tried to restore it multiple times with no success. Any ideas besides using it for parts?