I bought a iphone off a guy who stood in my house for a week, he went back to the UK. He said I just need to buy a Sim card for it. Got the Sim card and it's still not working. The man in the store says most likely you need a factory unlocked. But most li

What does "not working" mean?

In exactly what way is it not working?

Is there an error message?

What does it say?

Any info about your issue?

As roaminggnome said, more info. See this:

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