Hi, I've been using iPhone without jailbreak for 1 year ( iPhone with polish ORANGE's SIM lock ), however now I'm studying in London and I need to use english SIM card. Yesterday I made jailbreak to my iPhone. Before I made Jailbreak I updated my software in Itunes to 3.1.2 . Everything went great ( I made it with pwngtool 3.1.4 ) but unfortunately I still can't use english sim card because phone is blocked. I heard that 3.1.2 can't be unlocked, but I'm really fresh in that things and I don't know what to do Maybe should I downgrade software to 3.0, unlock it with cydia's ultrasn0w, and then do an update? If yes, please tell me how can I make it. I'm really stupid in these things, PLEASE GIVE ME HELP NOW I'M PAYING A LOT OF MANY FOR USING POLISH CAREER IN UK, I CAN'T AFFORD ON IT please give me step by step regards, a lot of thanks, M.