People enjoy becoming the root user on the Android operating system because it puts them in control over what is installed and what isn’t installed. The original idea behind Google not wanting to take any chances with allowing root access to the internal file system is fair enough, but sadly it is then exploited by phone carrier networks and manufacturers who then take advantage of the prison the root file system is in. They do this by installing their stock apps in the system partition where people cannot get access to without root access which means you have no choice but to leave them on there until flashing something like the CF-Auto-Root tool by Chainfire.
Chainfire is the guy who has created CF-Auto-Root—a one-click rooting tool for mainly Samsung devices—that installs and enables SuperSU. The SuperSU can allow any app that you choose to have root access. It does this by prompting the display with a message after you have installed an app that required root access before it can run and then it is up to you whether you grant that app root access or whether you do not.
Experienced Android users can dabble in things like installing the Xposed Installer  which is about as close to experiencing a custom ROM as you will ever get without actually having to install a custom ROM at all. Xposed comes with heaps of modules that people can install, and these modules allow for maximum tweaking of the user interface, including features and design.
- You need to have the Samsung Galaxy Tab Pro 8.4 with the SM-T325 model number to use this guide. The CF-Auto-Root files are almost made for one model number and flashing the wrong file can mean bricking the smartphone or tablet. You can check what the model number of your Tab Pro 8.4 is by tapping on the Menu > Settings > About Device > Model Number.
- You must have a computer that is running on a version of the Windows operating system to use this guide. The CF-Auto-Root tool is Odin-based, meaning that it is flashed with the Odin flashing tool. The Odin app is only available for Windows PCs and does not run on a Mac or Linux operating system. If you have no other option, try installing a Windows virtual machine on the computer that runs Mac or Linux and try getting the job done from within the virtual machine running the Windows environment.
BEFORE WE BEGIN
- Chainfire was using the Samsung Galaxy Tab Pro 8.4 SM-T325 tablet when is was running on the KOT49H.T325XXU1ANB7 firmware build number when he created the rooting file that is available in this guide. You do not need to be running on the same firmware build number as him. All you need to do is make sure you are running on Android 4.4.2 KitKat software updates and have the Samsung Galaxy Tab Pro 8.4 that comes with the SM-T325 model number.
- You need to unlock the Developer Options menu on the Samsung Galaxy Tab Pro 8.4 tablet if you have not got it unlocked already. You can do that by tapping the Menu > Settings > About Device > Build number at least seven times and don’t stop until it gives you a message on the display saying that you are using the device as a developer now.
- Turn on the USB Debugging Mode from the Galaxy Tab Pro 8.4’s Developer Options menu now by tapping on the Menu > Settings > Developer Options > USB Debugging. Leave the Developer Options menu once you have checked the box next to the USB Debugging and Android remembers your preferences for you.
- Some software updates bring new bootloaders with them, and a new bootloader can temporarily put the CF-Auto-Root tool out of action until Chainfire updates the file. That will be rare in our guides because usually these new bootloaders only come in new versions of Android. Still, if you find the Samsung Galaxy Tab Pro 8.4 is not booting after flashing CF-Auto-Root, leave a message on the CF-Auto-Root thread at XDA-Developers  with the new recovery image from the new firmware and Chainfire will update the rooting file, so it works again.
- Install the Samsung USB Drivers on the Windows computer  before starting with the guide so the Samsung Galaxy Tab Pro 8.4 can be connected with Odin.
HOW TO ROOT SAMSUNG GALAXY TAB PRO 8.4 SM-T325 RUNNING ANDROID 4.4.2 KITKAT
- Download the CF-Auto-Root  tool for the Samsung Galaxy Tab Pro 8.4 SM-T325 running Android 4.4.2 KitKat software updates.
- Open the Downloads folder on the computer (where the file you just downloaded ends up by default) and extract the rooting file to the Downloads folder.
- Double-click on the Odin flashing tool file that is now available from the Downloads folder after the extraction and the flashing tool user interface opens.
- Boot the Samsung Galaxy Tab Pro 8.4 SM-T325 into the download mode (turn it off and reboot it holding the Power + Home + Volume Down), and then connect it to the computer using the USB cable.
- Look at the Odin app on the computer and check that it shows a yellow or blue color coming from the ID: COM port which is telling you that the Samsung USB Drivers are installed and working.
- Click the AP button from Odin and then click through to the Downloads file and select the MD 5 file that is there to upload to the Odin app.
- Click the Start button from Odin and the rooting begins.
- Wait until Odin gives a green box from the interface with a pass message inside before unplugging from the computer.
In conclusion, that is how to root Samsung Galaxy Tab Pro 8.4 SM-T325 running on Android 4.4.2 KitKat software updates by flashing Chainfire’s CF-Auto-Root tool. The rooting package has just finished installing and enabling the SuperSU on your tablet so that everything is blocked and protected with root access and it is up to you what you choose to let through the SuperSU gates. That means be on your toes and take notice of what you are allowing through but also don’t worry about malware too much because it is not possible for malware to pass through unless you choose to let it in your system should you ever come across a threat.