I have 2 iPhone6 smartphones. They are exactly the same model and were purchased at the same time. At the same location and the same time, one operates properly and it shows LTE or ROGERS cellular coverage. It works great. The other phone often only shows a network coverage indicated as "E". This 'bad' phone cannot connect to the internet when on an E network and is very frustrating. All software has been updated on the phone. Is the phone a lemon or is there something I can do to fix it?
Have you booked a appointment with the Genius bar at ur local Apple store and see if the device is still in warranty and have it checked it out? Could be a lemon but unfortunately if it's out if warranty, then u will have to pay to get it fixed. If it's in warranty then u can have it fixed.