old i phone problem

Okay, here is my problem. I recently up graded from a i phone 4S to a i phone 6 plus. I did this at the apple store and the sales rep backed up my apps and data from the old phone to i-cloud. He told me that I could use the old i-phone on wifi. When I got home and tried to record some voice notes on the old i-phone, voice over would not work. phone voice over would not w here are my questions: I do not have wifi at home right now, can I use the old i-phone as a stand alone device? The back up was done on battery power, if the battery level was to low at home would that stop voice over from working? Acording to a sighted friend the visual screen on the old phone works fine.I tried to use triple click home to turn voice over back on but nothing happened. Any helpful comments?