Hello all. I'm wondering, ages ago i got one of those free simcard things from o2 and thought i'd try using it. It's never been used before, tried it in phone and works but no signal for network. As i can't remember what to do to activate them or whatever could someone remind me of what i do. I have that top up swipe card thing for it as well but haven't tried to activate it yet. Is is something to do with that?