I have an iPhone which was 1.1.2/4.6 OTB in the UK with O2.
For some months now I used it on 1.1.2 by jailbreaking & activating it and then using an O2 pay as you go simcard.
I restored the phone to 1.1.4 and then tried to jailbreak & activate using ZiPhone. This worked fine but left me with no signal (just no bars, it didnt actually say "No service"). I restored to 1.1.4 again and tried iLiberty+ with the exact same result.
I restored to 1.1.4 several times and tried again using different combinations but same result still.
Any ideas? I presume I can go back to 1.1.2 but I'd like to get rid of that damn 1000 message limit!