A few months ago, after an OTA update to my Lumia 920, my accelerometer quit working. So I contacted Nokia and they were kind enough to replace the phone. Spring forward to 6/15, I contacted AT&T to get the unlock code for my phone and they said no. The reason they gave is the IMEI number on my Lumia 920 is on another contract. WTF? They would not give me the phone number but they did tell me is was not a 702 area code. I didn't think I could add the same IMEI number to another contact but AT&T did allow me to. So who screwed up? AT&T or Nokia? And what do I do?