My iPhone 4S 5.1.1 jailbreaked. The battery was running low and then it went off. I rebooted it and nothing worked! Only the non jailbreak worked, but even whatsapp didnt work cuz I had a special theme on it download via cydia. I decided to reinstall my iphone, I plugged it into the computer and it started recovering. After a while a loading bar came up. But after a few minutes the screen went black and it went back in DFU. I´ve repeated this progress a couple times but it doesn´t seem to work. Anyone gat an idea how I can recover my iphone?