OnePlus One has a 5.5″ 1080×1920 JDI display. It’s powered by a 2.5GHz Qualcomm Snapdragon 801 processor and 3GB of RAM. Storage comes in at either 16GB or 64GB. Other features include a 13MP camera, 3100mAh battery, dual front speakers and StyleSwap replaceable back covers.
OnePlus One runs on a modified version of the CyanogenMod as its stock ROM. Though Android 5.0 CM builds are available for many devices, OnePlus One has not received any official update. However a port of CM 12 is available for this device. Follow the guide below to install it on your OnePlus One.