Just got my new phone in the mail, upgraded form a 6s to a 7 and I cannot finish setting up my new phone. Cannot connect to apple ID server. This is really driving me nuts. Can log into my apple ID on my old phone and ipad no issues. Also the sim card that came with the new phone also doesn’t work.
Best answer by Dinh
Was your phone connected to a cellular network or to a Wifi network at that time?