LG Optimus L90 is a mid-range Android smartphone. The L90 has a 4.7″ IPS LCD display, with a resolution of 540 x 960. It runs on a Snapdragon 400 1.2GHz quad-core processor and 1GB of RAM. It has 1GB of internal storage, an 8MP camera and HSPDA / WI-Fi connectivity. The LG Optimus L90 is powered by a 2540 mAh battery.
CyanogenMod team have made an updated nightly of CM 13 ROM for Optimus L90. Installing this ROM will update L90 to Android 6.0.1. Besides, the latest nightly has very few bugs. So if you want to install this ROM, follow the guide below.