Thanks to a couple of old friends at Best Buy I was able to snag 2 iPhone X 256gb yesterday. I spent most of the late night restoring one and trying to restore icloud. Somewhere along the way, I started receiving no service alert. Did some resets, moved the sim in and out, back in the old phone. None of that worked. Started a chat with ATT this morning and they tried some things before saying it was a bad sim. They are sending a new one. Not 10 minutes later service suddenly returns. Does this sound like sim, phone or carrier (ATT) issue? I'm gonna let it ride and see how it goes.