did you get it fixed? what happened was I downloaded iwipe on cydia for some stupid f*#ckin reason and it got caught in a boot loop. I found if you reboot it and hold the home button it'll shut off and I got it to give me the 'plug into itunes' logo. I got into DFU/recovery mode via holding the home button while plugging into comp and the 10 second both button & release sleep button yada yada yada... couldn't restore factory couldnt restore custom firmware... tried to re-pre-jailbreak restore with custom same thing with regular apple factory settings. It downloaded the update cuz all it said was upgrade & restore or cancel and It looked like all was goin well but i got back this unknown error. I got (13), (9), & i think (5) i dont remember but nothings workin. WHO KNOW WHAT GOES ON!?