At&t Lumia 820 & 920 SW Update NOW available. Go to settings > phone update > check for updates. More details here: http://t.co/h2yZ5o48iv
— Nokia Care US (@NokiaCareUS) January 30, 2014
Most of the features included with Lumia Black were introduced with the Lumia 1520. The update adds the ability to create folders on your homescreen (a separate app is required), Bluetooth LTE support, and Glance 2.0 for improved lock screen notifications. You’ll also get the company’s Nokia Refocus camera app, Nokia Beamer for sharing content across screens and more.
The update began rolling out yesterday, so its probably available for most AT&T copies of the Lumia 920 and 820 by now. You can head into your phone’s settings to check manually if you haven’t received a notification yet.