OnePlus One sports 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. On the software side, the OnePlus One runs a version of Cyanogenmod with a unique modified user interface.
OnePlus recently resumed seeding the Cyanogen OS 12 update for the One. It will update the device to Andriod Lollipop. A good news for OnePlus One users is that XDA member, CraZY_BoY^ has created the pre-rooted ROM for this device. It is the same ROM with same build number with root access added. If you want to gain root access on OnePlus One running on Android Lollipop, follow the guide below.