Cellular Roaming Issues
About 2 years ago I upgraded my iphone and gave my old 2nd generation iPhone SE to my son. I activated an eSIM on his phone and all has been going great except recently.
Last Friday he travelled to Europe with his class and I was told by ATT that all he had to do was step off the plane and make a call or text and the international plan I set up would work fine. That has not been the case. He only has a useable signal for calls/text/data when he is connected to WiFi. When I called ATT to trouble shoot they told me Cellular Roaming must be turned on, it when my son goes to do that it says “Cellular Data secondary WiFi only”.
how do I fix this for him so for the next week he doesn’t have to rely solely on WiFi?
iPhone SE, iOS 16