I have an unlocked 1.1.1 with modem fw 04.01.13_G . I'm thinking about doing this guide, but it raises these questions in my mind:
1. Is it safe to update to 1.1.2 and run AnySIM 1.2.1u without first running OneSIM to undo AnySIM 1.1's effects?
2. I understand that AnySIM 1.2.1u is not endorsed by the dev team. Does this mean that I won't be able to run OneSIM afterwards to undo its effects?
3. The guide looks curiously too easy. Is it really that simple?
I'm not a noob, I know a lot about unlocking iPhones. I just haven't messed with 1.1.2 yet.