American iPhone not working in Italy?

I bought my girlfriend an iPhone 4 without a contract form the att store a few weeks ago. She just moved to Italy and bought a micro sim for the iPhone. The iPhone is not recognizing the sim. She tried putting it in an iPhone from Italy and it works just fine.

Well, you forgot to get it unlocked for the SIM. Cell carriers sell phones that have the SIM modules locked to their network. You need to get an unlock code, have her install the foreign SIM card, and enter the code.

You need to call AT&T and ask them to give you one, if you have an account with them.

By the way, she will very likely NOT get high speed data on that device in Italy, because they use different data frequencies than the US.

You need an unlocked iphone.
email me i have a few for sale and trade.

  • What service is best from Wind Italy? So a friend told me her stepmom has phone service from Wind and I plan on buying a SIM card for my iPhone 5S when I visit Italy next month but do they have any promotions or packages were I can get unlimited internet? I know most people would say I don't need that much but honestly I would feel more comfortable having unlimited and not worrying if ima go over a set amount.
  • My iPhone 4S isn't recieving texts from Italy? My boyfriend is in Italy, and he says he is texting me, and as far as his phone notifys-they're sending But I haven't gotten any? I received one when he first landed. So he was at the airport Any idea why this is happening? His mum and sister have been getting them fine. And is really like to fix it if I can because I miss talking to him.
  • Is an American iPhone the same as a UK iPhone? Like are all the internals the same? And would an American iPhone work here in the UK if you bought it unlocked? Everyone says all iPhones are the same round the world and I think it would work, but I was just confirming.
  • I'm receiving items I did not order in the post, from Italy? Today and yesterday I've received iPhone screens in the post. No information about the seller or anything on them. The only return to address is the mail sorting office in Portsmouth. Says from Italy by air mail. Has my full name and address on them. IIm checking all my payments and can't find anything related. What do I do?