Yes sir, an AT&T device support center, I have been told the device is under warranty for 1 full year so a replacement is valid. I have been directed to Nokia tech support also but I may have to wait until Monday to speak with someone from Nokia directly. They have hours on weekends? Nokia? I agree, the update has made my phone's 4G/LTE functionality non-existent. I just find it all frustrating, I'm really trying to remain positive but there have been some major issues with my Lumia 920 experience since 11/17/2012 and they continue