Nexus 4 FAQ:

Enjoy Nexus 4 FAQs for step by step guides for both Windows & Mac!

Take control of your phone by learning how to root it: Windows & Mac

Before you can install custom ROMS, themes, and other tweaks you need to install ClockworkMod Recovery on your Nexus 4: Windows & Mac

Learn how to install custom ROMS: Here

Need to restore your phone back to 100% stock/unroot? Use this guide for both Windows & Mac