Your phone, your risk, I don't take any responsibilities.
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Current version of CF-Auto-Root for N910G is for android 4.4.4, however it works for 5.0.1. Key thing is to use a more latest version of Odin.
Samsung Galaxy Note 4 (N910G) Android Lollipop 5.0.1 which was rolled out on 3rd June 2015 This is a Vodafone phone in Australia
Odin Latest Version (v3.10.6): Download from http://forum.xda-developers.com/showthread.php?t=2711451
CF-Auto-Root: Download from https://download.chainfire.eu/576/CF-Root1/CF-Auto-Root-trlte-trltedt-smn910g.zip
- Use Vollumn down + power button + home to get in to download mode
- Run Odin as Administrator
- Click on "AP" to select "CF-Auto-Root-trlte-trltedt-smn910g.tar.md5"
- Click "Start"
- It should just do it things and reboot