Google announced the Android L at the Google I/O conference and released the preview a day later for the Nexus 5 and Nexus 7 (2013). Other devices have received the factory images but it is not the complete code. But XDA developers have done a great job and have managed to port the Android L Preview on Nexus 7 (2012) WiFi. The ROM is still in the development stages and at present has many bugs. But if you are eager to try it out on your Nexus 7 (2012) WiFi, follow the steps given below.