Hi. I have a 3GS with 3.1.2 OS JAILBROKEN and SIMLOCKED by blackra1n and blacksnow. It wasnt tethered I guess, because I could normally shut down and restart my iphone w/o needing to jailbreak it every time. I havent restored my iphone ever before. So it uses the old bootrom. 2 days ago, my iphone stuck at apple logo screen and restarting itself continuously. After many attempts with many solutions, and being unsuccessful at all, I decided to restore it with a custom firmware. I downloaded 3.1.3 firmware to my pc and with sn0wbreez, I created the custom firmware. Now, I m trying to restore my iphone through itunes with the custom firmware. If i try to connect my iphone with recovery state, then 99% seems to be finished but at the last minute, it gives error (6). The loading bar on the iphone was loaded like 99% before the error. I tried it at 2 PC's and 1 MAC and with 2 USB cables. Nothing changed! If I try to connect my iphone with DFU state, then i get error (1600) from the begining. Please help me, I need my iPhone so much these days. As part of my job, I need to look at my mails while I am away too, but w/o my iphone, it really is impossible for me. This really is urgent! Please help me. My twitter account is twitter.com/pashalatzo Thanks alot.