Google’s latest Android 5.1.1 update is now available for the Nexus 4, Nexus 6, Nexus 7 (2013, WiFi), Nexus 9 (LTE and WiFi) and Nexus 10. You can download the upgrade instantly as a factory image or you can wait for it to roll out as an OTA later today.
For those unaware, this long-awaited update carries the build number LMY48I and brings a much-needed fix for the Stagefright security exploit, in addition to several other bug fixes, stability improvements and speed optimizations.
Hit the source link below to download the factory images from the official Google Developer Blog.
Source: Google Developer Blog