Hi all, Here are the facts: - iPhone 3GS - BB 05.16.02 - iOS 4.3.5 - locked to O2 - iPhone is not currently JailBroken but happy to do so. I've done a fair bit of research and as far as I can tell it is impossible to unlock an iPhone with these settings without changing either the iOS (downgrade) or the BB (update)? However... I have installed TinyUmbrella and I have no SHSH blobs saved which I think potentially rules out one or both of these options. Is there any solution still possible? I am able to use either Windows 7 or Mac OSX Snow Leopard so instruct me to use whichever with whatever software necessary. At this point I am crying inside! If this forum permits such things I will happily donate a fiver via PayPal to the person who I believe has made my new Vodafone SIM work in my iPhone, a tenner if it's within the hour (!) If this is forbidden then my undying thanks will have to suffice Over to you guys, all help very much appreciated, thank you in advance!