i have a 3gs 16gb 4.0.1 jailbreaked and unlocked. i restarted it and got struck on the apple logo. i tried to restore it to 4.0.1 again but it gave an error. i then used irecovery to fixed this boot issue bt it was of no avail as it didnt get passed the apple logo. n i cant restore it to 4.1 as there is no jailbreak for it. plz help me in this issue. Thanks.