I don't know the current situation, but in the past most US carrier-sold phones have not had the antenna pin connected on the chip.

I'm not sure exactly what it is, though I know all the S7s do. I suppose it may be carrier-locked? I bought mine unlocked, not via a carrier. It's a handy feature, though. Free music and entertainment with zero data spent. I've got to wonder why people moved away from it. No signal issues either.

> Free music and entertainment with zero data spent.

<conspiracytheory>That's probably why the phone manufactures were asked by Google and the carriers to remove that feature.</conspiracytheory>

I bought a Nokia 6.1 phone and was pleasantly surprised to discover FM radio on it.