The SuperSU that you get installed after rooting with the CF-Auto-Root tool blocks everything by default so what you install does not automatically get root access just the same way the Android operating system naturally blocks the root apps from everything you install. The difference is when you try to run the root application. It’s at that time when the SuperSU gives you a message on the phone’s display letting you know that the app is requesting root access. It asks what would you like to do. Here is where you take over with the decision, and that is why rooting is best left for the advanced Android users but does not create a less secure device by default.
Here is everything one needs to get root on Samsung Galaxy S6 Edge SM-G925W8 smartphones running on the Android 6.0.1 Marshmallow updates by flashing the CF-Auto-Root tool that Chainfire develops:
- You need the Samsung Galaxy S6 Edge phone that comes with the SM-G925W8 model number to use this guide.
- You need a computer that runs on the Windows operating system to run the Odin flashing tool in this guide.
BEFORE WE BEGIN
- Have the Samsung USB Drivers installed  on the computer before you try flashing the rooting file so the flashing tool can identify the device you are trying to connect to the computer.
- Turn on the USB Debugging Mode  on the Samsung Galaxy S6 Edge SM-G925W8 smartphone, so the Android software that is running on your device allows for changes to be made to it.
- Chainfire had the MMB29K.G925W8VLU3CPC5 firmware build number running on the Samsung Galaxy S6 Edge SM-G925W8 smartphone when the rooting file in this guide was developed. That does not mean you need to be running on the same firmware as he was when you follow this guide. It is there to be used as an indicator only.
HOW TO ROOT SAMSUNG GALAXY S6 EDGE SM-G925W8 RUNNING ON ANDROID 6.0.1 MARSHMALLOW UPDATES
- Download the CF-Auto-Root  tool for the Samsung Galaxy S6 Edge SM-G925W8 running on the Android 6.0.1 Marshmallow software updates.
- Open the Downloads folder on the computer and extract the rooting tool file to the same folder.
- Run the Odin flashing tool from the Downloads folder.
- Boot the Samsung Galaxy S6 Edge SM-G925W8 into its Download Mode  that is built into the device and then connect it to the computer with the USB cable.
- Do not change the default settings from Odin that it offers in the Odin Options tab next to the Log.
- Click the AP button and head to the Downloads folder on the computer to then click on the rooting file and have it uploaded to the Odin.
Click on the Start button from Odin to start the rooting and then check all of the information that is being displayed to you on the phone’s screen so you know what is going to happen over the next couple of minutes.