I restored my iphone6 as new in a shop. But it did not come as new. There were couple of my old phone numbers and a bluetooth connection device. I created a totally new Apple id so those numbers couldn't be from there. How is this possible? My phone has been obvioisly hacked. But how is this possible? I saw a program somewhere that can add a code firmware to not to restore the phone as new even though tried. Have you ever heard of this?