Hey all, first time posting here so be patient please haha. So in my research, what I'm finding is that it is now possible to unlock an iPhone 4 using iOS 5 using, for example, Ultrasn0w, on these basebands: 4.26.08, 05.11.07, 05.12.01, 05.13.04 and 06.15.00 Link to process here. What I'm understanding though is that because I'm just getting into the whole jailbreak/unlock, when I updated to iOS5 not using a jailbreak that would preserve my baseband I semi-screwed myself over because I now have baseband 04.11.08. I have found multiple sources though that suggest ways of downgrading my iOS from 5 to 4.3.5 to go to baseband 4.10.01 then unlocking using Gevey SIM, but I'm looking for a non-hardware unlock. Link to process here. My question is, is there a way for me to downgrade to one of the above listed, working, basebands then re-install iOS 5 using a baseband preserving jailbreak, THEN finally unlock. Hope this is clear!