The Google Play Store is home to millions of apps that can be installed on the Android operating system that runs on the Samsung Galaxy Tab Pro 8.4 tablet. Many of those apps do not run unless it can get access to the root file system. Some apps are powerful enough to do amazing things but without access to the root file system, they do not have enough power to do what they need to do. Google had no intention of taking away the ability for these apps to run because they did not like the apps bur rather because the danger people can be in if malware gets access to that same root file system.
Chainfire, the man behind the CF-Auto-Root tool found in this guide, has created a way that people can become the root user while still blocking off access to the root file system from malware. It does this by installing and enabling a thing called SuperSU  (also developed by Chainfire), and the SuperSU blocks everything—from the apps you wanted to install the malware we are all afraid of installing—and it only allows through what you tell it to let through. Once you have the acquired knowledge of what is malware and what isn’t, using a smartphone or tablet that runs Android with root access is as safe as using Android without it.
- You must have a computer that is running a version of the Windows operating system before you can use this guide. The Odin flashing tool only runs on Windows.
- You must have the Samsung Galaxy Tab Pro 8.4 tablet that comes with the SM-T320 model number to flash the CF-Auto-Root file that is available in this guide. Flashing the wrong version can brick a device so make sure you know the model number.
BEFORE WE BEGIN
- Install the Samsung USB Drivers  on the Windows computer before getting started with the guide so that the Odin flashing app can detect the device when you plug it into the computer.
- You can leave a message on the CF-Auto-Root tool thread at XDA-Developers  if you find your device does not boot after flashing the rooting file using Odin. Chainfire asks if people can leave the new recovery images from the new firmware in the message because he needs it to update the rooting files, so they start working again.
- You need to unlock the Developer Options menu and enable USB Debugging  on the Samsung Galaxy Tab Pro 8.4 tablet so you can make developmental changes to the Android software as we are planning on doing in the guide.
- Chainfire had the KOT49H.T320XXU1ANAI firmware build number running on the Samsung Galaxy Tab Pro 8.4 SM-T320 tablet when he developed the version of the CF-Auto-Root tool that is found in this guide. You do not have to be running the same firmware build number. All you need is the SM-T320 model number and for it to be running on the Android 4.4.2 Kitkat software updates.
HOW TO ROOT SAMSUNG GALAXY TAB PRO 8.4 SM-T320 RUNNING ON ANDROID 4.4.2 KITKAT
- Download the CF-Auto-Root  tool for the Samsung Galaxy Tab Pro 8.4 SM-T320 running on the Android 4.4.2 KitKat software updates.
- Open the Downloads folder and extract the rooting file  to the desktop.
- Double-click on the Odin file that is now available on the desktop and the flashing tool opens.
- Boot the Samsung Galaxy Tab Pro 8.4 SM-T320 into the download mode  and then connect it to the computer with the USB cable.
- Check Odin shows a blue or yellow ID: COM port color and gives the added message which is both there to let you know that your device is connected, and the Samsung USB Drivers are working.
- Click the AP button from the Odin app on the computer and browse through on the desktop and select the MD5 file to upload to Odin.
- Click on the Start button and the rooting of the Samsung Galaxy Tab Pro begins.
- You know it is complete when the Odin user interface shows a green box with a pass message inside.
In conclusion, that is how to root Samsung Galaxy Tab Pro 8.4 SM-T320 running on Android 4.4.2 KitKat software updates by using CF-Auto-Root. The rooting tool by Chainfire has just installed a modified cache and recovery partition to install and enabled the SuperSU which is now available from the app drawer.