Ok so I got an iphone iwth version 1.1.1 on it followed the whole process on youtube and got the installer app. I went to download the iphone sim free but it was version 1.8 not 1.7 which i think is the version requiered. Is there any one who can help me get sim free v 1.7? or no how to help me because when I try the 1.8 version, it says unlock failed. PLEASE HELPPPP Thank You.