Can't get 4G with iPhone 5
I'm at a loss to figure this out. I live in Seattle and often travel to major cities like Los Angeles and New York. In none of these places have I ever gotten 4G service, despite the fact that Sprint services these cities. Is this some kind of setting that I'm missing ... or what? I'd sure like to be able to use all of the phone's capabilities that I paid for.
iMac, Mac OS X (10.6.8), iPhone 5