After posting Android 5.0 “Lollipop” factory images for the Nexus 5, both Nexus 7 models, and the Nexus 10, the Nexus 4 owners in the building were (for good reasons) feeling a bit left out. Well, Nexus 4 owners, your time has come – your Lollipop factory image is ready as build LRX21T.
You can download it below. You can find instructions on how to flash a factory image here.
Link: Nexus 4 Lollipop Factory Image (LRX21T) | Binaries