ios 8.2 imessage and facetime not activating
Since I updated my software to ios 8.2 my imessage and facetime won't activate. I have done the resetting, turning it on and off, and took it to my carrier. They suggested I back my phone up and then restore iPhone and then restore my backup. Tried that and it still won't work. This is SERIOUSLY frustrating as I cannot contact important contacts overseas. How do I resolve this?
iPhone 5s, iOS 8.2