I have just registered by Giff Gaff Sim and put it into my Mum's old Iphone 4s (was on 02)
But I have got this error message:-
This iphone is not able to complete the activation process and needs to be replaced. Please visit your nearest apple store or authorises service provider for more infomation.
Has anyone else had this issue? Is it that I need to get the phone unblocked or replace the phone? It was working last week!