mobile

I just picked up a Note 4, but was told it was the T-Mobile variant when it's actually the international N910H. This isn't a huge deal as I still love the phone and get HSDPA+ so my connection isn't too slow.

That said, I know this phone has LTE and should be able to run on the US T-Mobile network. Is there any way to activate these modems? Do I need to flash a new modem or will that just break my phone.

Thanks!