Can't send or receive messages
Just received Samsung J7 Perx, and cannot send or receive text messages of any kind. Native messenger is disabled and am trying to use the Unreal app, but when I attempt to begin text, the native messenger pops up and asks if I want to enable the app. I decline, another pop up reminds me the procedure to set as default (which I don't follow) and kicks me out of the Unreal messaging.
Outgoing phone calls connect maybe 40% of the time. I can receive no incoming phone calls.