One of the developers Chainfire, the man who has helped deliver root access to an ungodly amount of devices over the past few years. Chainfire has done it again on the Nexus 9; root has been achieved for anyone and everyone willing and able to apply it.
You can root your Samsung Galaxy Note 4 using the CF Root method. Rooting is the process of gaining administrative rights on your Android device. Once we root our Android device, we can then make changes to it to customize it well beyond what it normally can do.
T-Mobile and Sprint Samsung Galaxy Note 4s getting support for TWRP Custom recovery today, both these devices not been out long which makes it pretty impressive that TWRP is already available, meaning that Team Win has been hard at work getting TWRP ready and compatible with this device.