I'm travelling to the States in April, and it would be really handy if my phone worked there. I've found a site that sells USA sim cards, but if you have any other suggestions, I'd love to hear them!
Hi once you unlocked your sony ericsson k550i you can use work in usa with a usa sim card and any other country sim card. If you need to unlock your mobile you can visit this site Mobileunlocksolutions.com here you can get the code an unlock your mobile.
