My boyfriend gave me his iphone 5c since he bought a 5s cuz he needed more space. i went to verizon today to have them hook my line up. We restored the phone to factory settings and i got an apple ID and set up my phone. However now every time I download an app he gets a notification on his phone. Somehow his apple ID must still be connected to my phone even though it was restored to factory settings and my apple ID is the one operating the Apps store. Help?