Having full write permissions over the root directory on the Android operating system is known as having root access. It means the apps you install now have the chance to access that same directory which allows them to do more things than they could do without it. That is the sole reason why so many root apps are deemed as better and stronger than the apps that do not require root access.
Here is what is necessary to root Samsung Galaxy S6 Edge+ SM-G928I smartphones running on Android 6.0.1 Marshmallow by flashing the CF-Auto-Root tool:
- You do need to have a computer that is operating on a version of the Windows operating system for this guide to work.
- You need the Samsung Galaxy S6 Edge+ device that comes with the SM-G928I model number to use this guide.
BEFORE WE BEGIN
- Make sure the computer you are using in the guide already has the Samsung USB Drivers  installed on it.
- The Samsung Galaxy S6 Edge+ SM-G928I handset should have the Developer Options menu unlocked and the USB Debugging Mode should be enabled  from the Developer Options menu if your device does not have that done already.
- Note that Chainfire had the MMB29K.G928IDVU2BPC3 firmware build number running on his Samsung Galaxy S6 Edge+ SM-G928I device but that does not mean that you necessarily need to have it running on your device. He gives the information of the firmware he had running so you can use it as an indicator.
HOW TO ROOT SAMSUNG GALAXY S6 EDGE+ SM-G928I RUNNING ON ANDROID 6.0.1 MARSHMALLOW UPDATES WITH THE CF-AUTO-ROOT TOOL
- Download the CF-Auto-Root  tool for the Samsung Galaxy S6 Edge+ SM-G928I phone running on the Android 6.0.1 Marshmallow software updates.
- Open the Downloads folder that is on the PC to find the file that you downloaded; extract the rooting file to the same Downloads folder.
- Run the Odin flashing tool application that is now available within the same Downloads folder.
- Boot the Samsung Galaxy S6 Edge+ SM-G928I handset into its Download Mode  and then connect it to the computer with its USB cable.
- Check Odin shows that it is added and that the ID: COM port lights up with a color, so you know that the Samsung USB Drivers are working.
- Do not make adjustments to the default settings that you get from the Odin flashing tool application.
- Click on the AP button and then head to the Downloads folder where you extracted the rooting file and click on the MD5 file that is there so that it uploads to the Odin.
- Click on the Start button from Odin and then check out the information that is rolling down the display of the phone so you can see what is happening over the next few minutes.
- Wait for the phone to show that it reboots in ten seconds and then wait for the Odin app to show a green pass message.
In conclusion, that is how to root Samsung Galaxy S6 Edge+ SM-G928I smartphones running on Android 6.0.1 Marshmallow updates. You now have the SuperSU installed and enabled so you can begin installing root apps.