The LG Optimus G is LG’s late 2012 flagship phone. It is powered by quad-core Qualcomm Snapdragon S4 Pro processor. The speedy processor is backed by 2 GB of RAM, 32 GB of ROM, a 4.7″ “True HD-IPS+” panel, LTE connectivity, a 2100 mAh battery, and an 8 or 13 MP camera (depending on region). It originally came with ICS OS but it was upgradable to Jelly Bean.
Google released the Android L preview for the Nexus 5 and the Nexus 7 (2013). XDA developers have managed to port the Android L preview to a few other devices and the LG Optimus G is one of those device. Currently it is plagues by number of issues. But if you are eager to try out the latest Android version, you can follow the steps given below.