So I’m vacationing in Puerto Rico and my son, wife and me are on Verizon (CDMA). We are suppose to have LTE roaming on Claro PR. For some reason he has had LTE all over Puerto Rico with his XR but my wife and I have been on 3G (X and 7+). I’ve checked cellular settings on both and here’s the weird thing. His cellular options are different. My wife and I both have “International CDMA” as options. My son’s XR doesn’t.
If my wife and I turn off data roaming and turn back on, we can get LTE for about 5 minutes then back to 3G. I’ve compared my X to his XR supported bands and all I can find is his supports Band 71 which shouldn’t be an issue.