Android 7.1.1 Developer Preview 2 Images and OTA's are now available for few Nexus Devices including the Nexus 5X, Nexus 6P and Pixel C.
Also Read:- What's New in Android 7.1
Users can get the Android 7.1.1 Dev Preview 2 update in three ways namely
1) Android Beta Program
2) Flashing Factory Images
3) Flashing OTA .Zip file
The new Android 7.1.1 Developer preview 2 has build NPF26F for Nexus 6P and Nexus 5X and NPF26H for the Pixel C, You can download the Factory Images and OTA .zip from the link below.
Download:- Factory Images | OTA .Zip Files