Report: Software mistake by Motorola requires recall of AT&T branded Nexus 6
A leaked internal memo reveals that customers who walk into an AT&T store with a bricked Nexus 6 are supposed to receive a new unit. Interestingly, display units are not affected and are not to be returned. According to the memo, new inventory will be coming to AT&T stores sometime in the next few days.
Apparently, the issue is linked to the customization that AT&T has done to the Nexus 6. As you've seen, the carrier's logo adorns the back of the phone, and there is some AT&T bloatware on the device, although it can be removed. Perhaps the bug is karma, a message from the phone gods if you will, who were angry at AT&T for slapping some of its software on a Nexus phone.