I have an iPhone 3GS, running on version 4.1 with Baseband 05.14.02 The phone is already jailbroken with greenp0ison I now want to get the phone unlocked. I have Cydia and have got the updated ultrasn0w 1.2 I understand I need to update my baseband to 06.15 I have downloaded redsn0w 0.96 b5 I have also downloaded iPad 3.32 firmware. I have read all of the guides, but just want to confirm before I do it. The guide says I need to also download IPSW 4.1 for iPhone? Is this neccesary as i'm already on 4.1 and already have a JB phone so just want the unlock? Any other help?