Chosen Solution

My iPhone 4 no longer displays EE and dots on top LH corner, only “Searching…….” Wifi symbol is present and phone still displays my home network. But won’t send or receive calls or text messages. I haven’t changed any settings as far as I am aware.

Check to see if you may have turned on the airplane mode. If so uncheck it. To find out how on your phone go to the Internet and type in your phone model and reset airplane mode.