The long awaited over the air (OTA)  updates for android Lollipop have begun rolling out to Nexus Devices.

The Nexus 5, Wifi Nexus 7s, and Nexus 10 are now able to update their Android versions from Kitkat to Lollipop.
The Nexus 6 and Nexus 9 are also receiving minor updates to fix bugs.

However the OTA update for the 3G/LTE  variants of the Nexus 7 2012 and 2013 haven’t started rolling out.

Well if you happen to be impatient, you can download the Android Lollipop Factory image for your Nexus Device from the Nexus Factory Image website here. Remember to backup when you take this path.