I put a new 4G SIM in my Iphone 5s and selected the LTE option. How do I tell if the phone is actually working on LTE/4G, as it still just shows 3G icon on menu, and sometimes just E. What should it display if use LTE? I am using ios 9.
It should have refreshed by now, and am on a 4G plan, and the data allowance is being used up, so why would it not be displaying LTE or 4G? It is an iphone 5s with ios 9.3.2 And I have selected LTE in the mobile data settings.