I recently bought a used iPhone 4S so I have no clue in iOS because I came from android.
It is locked to EE 14.0 Orange UK. When I inserted my nano sim card I was prompted to carrier select list and I accidentally pressed the AT&T for 4S. And now I get no service. Also I have "No sim" in general options.
The person sent a code that I needed to enter manually from carrier select list. Restaring the device doesn't bring carrier menu. Sim pulling out and inserting also doesn't help. What should I do? Do I need to buy a new Rsim?