For those of you who want to get the most out of your Samsung Galaxy Note 5, you will definitely want to root it and install a custom ROM. Rooting method has changed for new phones with latest Android 5.1.1, now all Android phones will require a custom kernel with root enabled. Basically, you can install “auto root” kernels, which will give you root.
We will be using Windows 8.1 in this tutorial but you should be able to follow the same steps using a Mac or Linux if you use VMWare to run Windows on top of it. (You can also try jodin, which is a cross-platform alternative to ODIN.)
Step 1. First, you will need to go into Settings->About device and hit the Build number a bunch of times until it says you have enabled Developer options.
Step 2. Hit the back button once and you will find a new menu called “Developer options”, tap on that.
Step 3. Make sure “OEM Unlock” is ON. If you don’t have this option, you can skip it as some international models don’t have it which means your bootloader is already unlocked.
Step 4. Power off your Note 5 then hold down Volume Down, Center Home, and Power buttons together for about 5 seconds until you see a warning screen like below and let go of all the buttons.
Step 5. Connect a micro-USB cable from your Note 5 to your computer.
Step 6. Download ODIN, auto-root kernel for your model of Note 5, and also Samsung USB drivers: