You can become the root user of the Samsung Galaxy Tab 3 SM-T315T tablet when it is running on the Android 4.4.2 KitKat software updates by installing the CF-Auto-Root tool. The CF-Auto-Root installs and enables Chainfire’s SuperSU which is the same version of SuperSU that you normally get when you flash it from a custom recovery image. The hard part is getting it installed.

The CF-Auto-Root tool needs to install a modified cache partition and a modified recovery partition which then allows for the enabling of the SuperSU.

What Is Rooting the Android Operating System?

When you buy a new smartphone, you might not know it, but the Android operating system is in a “locked” state. For the most part, it will not make much difference to you: most apps are still available to use, and there are benefits to this locked state such as better security. When you root the Android operating system, you are gaining full administrative rights over the OS.

Why Would You Want to Root Android?

Gaining full administrative rights over the operating system has some perks to some people. For example, out of the millions of applications available on Google Play, some of them will not be able to run on your device unless it has root access. Until you have a specific need for wanting Android rooted, you probably want to leave Android as it comes out of the box. But if you need to unlock an app, then that is when you want to look into rooting methods. Using more apps is only one example of why you may want root access, here is the full list of benefits:

  • Unlock more applications. Some of the apps available for Android cannot run unless you have root access. This is because the app’s features cannot run without the root permissions because the features require the full system access before they can be useful.
  • Better battery life. Smartphones are great, but they have one caveat, which is each time you recharge the battery, it loses some of its overall lifespan. That means smartphones, in general, do not make great investments, and if your weekly paycheck is low, you will want to limit the number of smartphones you go through. One of the ways you can do that is by removing bloatware and creating a better battery life.
  • Bolster performance. If you are the budget-conscious shopper, you may want to increase the device’s performance. This can be done by removing the bloatware as well. The more processes you have running, the more memory that is used. By removing some of the apps, it can help lighten the load on your hardware.
  • Customize Android with themes. With root access, you can download and install any theme that’s at your disposal. That includes any customized theme you can find.

What Are the Risks of Rooting?

If you are buying a smartphone that is not running iOS, then it is probably the Android operating system that you want running as the ideal software to pair with your shiny new hardware. It is, in fact, the Android OS that offers you the chance to customize the OS considerably more than iOS: custom themes, run any app you know about, the works. For many users, the “openness” of an operating system is important, because it offers them more freedom which means running into fewer problems with their investments. But there is a reason iOS likes a far more locked approach: the ability to customize is not for everyone, and if you do not know what you are doing it can lead to a lot of problems which can define your time with the OS rather than freedom.

With power (full admin permissions) comes greater responsibility. Here are some of the main risk factors when it comes to rooting:

  • Malware becomes a larger threat. You might read the occasional news article about how new malware is wreaking havoc in parts of the world on Android. But the Android operating system with root access becomes considerably more vulnerable to exploits because applications are no longer prisoned off in their own sandbox environments. This means if you accidentally download malware, it can do more damage because it can spread throughout the operating system and even jump into other applications and potentially view sensitive data.
  • You can accidentally brick the smartphone. There is always a chance that you end up bricking the smartphone before you had the opportunity to use it with root access. That is because if you are going to brick it, it is going to happen during the rooting process.
  • You may void the warranty. Most manufacturers do not allow you to root the Android operating system and still get to bring it in for repairs under warranty. Whether they are legally meant to do that or not is another question, but it is now common knowledge that most do not want to help you if they find out you have unlocked the OS with root access.

Here is everything you need to root the Samsung Galaxy Tab 3 SM-T315T running on the Android 4.4.2 KItKat software updates.

Details We Should Know

  • Chainfire had the JDQ39.T315TDVUAMK5 firmware build number running on the Samsung Galaxy Tab 3 SM-T315T when he created the rooting file found in this guide. You do not have to be running on that same build number at all. As long as you have the Tab 3 that comes with the SM-T315T model number, and it is running Android 4.4.2 KitKat, then this guide should work for you.
  • If you follow the guide, and it does not work it is likely due to there being a new bootloader present in the firmware you are running. These cases are rare in our guides because of a new bootloader usually only comes after updating to newer versions of Android, but they can still happen. You need to let Chainfire know about the issue by leaving a message with the recovery image file from the new firmware on the CF-Auto-Root tool thread made at the XDA-Developers website, and Chainfire can update the file, so it starts working again.

Files We Need

  • Download the CF-Auto-Root tool for the Samsung Galaxy Tab 3 SM-T315T tablet when it is on Android 4.4.2 updates.
  • Download the Samsung USB Drivers on the Windows computer.

Rooting the Samsung Galaxy Tab 3 SM-T315T running on the Android 4.4.2 KitKat software updates

1. Open the Downloads folder and extract the rooting file to the Downloads folder.

2. Double-click on the Odin flashing tool file that is inside the rooting folder and the flashing tool opens.

3. Unlock the Developer options menu and then enable the USB debugging mode on the Samsung Galaxy Tab 3 SM-T315T so you can make changes to the Android software that is running on the tablet—a requirement before rooting.

4. Install the Samsung USB Drivers on the computer so that the tablet can be detected by the flashing tool.

5. Boot the Samsung Galaxy Tab 3 SM-T315T into the Download Mode and connect it to the computer with the USB cable.

6. Check that Odin shows a blue or yellow color coming from the ID: COM port and gives the added message from the log.


7. Click on the AP button and then browse through to the Downloads folder and select the rooting file found inside the extracted folder.

8. Click on the Options tab next to the Log and check that it shows Auto Reboot and F. Reset Time boxes checked but nothing else. Make sure you leave it the same as these default settings already show. Moreover, do not touch anything from the Pit tab.

9. Click on the Start button and the rooting of the Tab 3 begins. The first thing you notice is the modified recovery being installed.
10. The next thing that happens automatically is the modified cache is installed. You do not have to press anything at all.

11. You then get the reset message. The Samsung Galaxy Tab 3 can reboot a few times before it gives a pass message.

12. You know it is complete when you get a green box with the pass message available on the top left side. The Log also shows that it did not fail.


In conclusion, that is how to root the Samsung Galaxy Tab 3 SM-T315T tablet running on the Android 4.4.2 KitKat software updates. The SuperSU app is now available from the app drawer, and it is the app that makes you the root user. Don’t delete it or else you cannot install the root apps from Google Play and sources online. The root apps are now available to be installed right now. Anyone who decides that want to unroot the Samsung Galaxy Tab 3 can open the SuperSU app and visit the Settings page. Scroll down until you get to the option that says it will completely uninstall SuperSU from the mobile device.

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