Roaming

[Outlawstorm]

I have a S4 mini and for some reason I cant roam in the USA .. Seems like it is stuck on Home Only setting. I go to the USA and once I am out of home range, I get nothing... I have phone set to automatically select network, but it don't fine anything. I try search and it wont find any network. Is there a setting I am missing on the phone to select or something else.

Any help is appreciated

Thanks