C3322 not working in America

Hi guys, I purchased the Samsung C3322 in Senegal. I have been trying to get it to work in America, but no luck--it doesn't detect any networks. It is supposed to be quad-band so I don't know why it can't detect anything. When I was using the sim card I got in London, it got a signal, but nothing from my AT&T sim. Called Samsung and AT&T and no luck. Anyone has any clues? Thanks!

---

› See More: C3322 not working in America

Hi, thanks for replying! What do you mean by clearing the international roaming?

Hi !
Please unlock the mobile through computer software and it will start work in America.

Hi, do you have any suggestions on how to do that? Like what software to use? Thanks!

How do you clear international roaming? Thanks.

Bump? Thanks.

Does the phone accept the AT&T sim? Does it make a difference if you put the sim in one card or another? (it has two) Are you sure you get an AT&T signal in your area?

I think it does--welcome screen says Welcome to At&t. I tried both sim slots. Everyone else's phone works, so hm... I could get a signal when I used my London Sim, which is weird. Any ideas? :\ Thanks!