I've never really been too bothered with 4g as most areas I'm in have pretty poor coverage but in case that changes, I wanted to check something on my iPhone 5 - is there supposed to be some sort of setting for it? It has an 'enable 3G' switch obviously but nothing relating to 4G or LTE. I'm on a Virgin Mobile contract and they don't offer the service yet so it's not like I can go somewhere with coverage and try but when they do activate it I'm assuming it'll automatically connect?