Whether Android lovers have a smartphone or tablet, if it is from the Samsung range of devices then users probably get the chance to install CF-Auto-Root with the Odin flashing tool. The CF-Auto-Root tool is our favorite one-click rooting tool and it installs and enables the SuperSU on the Samsung Galaxy Tab A 9.7 tablet much the same way as it would if people were to install a custom recovery and then flash the SuperSU from the recovery partition. The CF-Auto-Root tool takes away much of the manual labor, and if we did not want to have a custom recovery installed in the first place, then it offers us a way to stay using the stock recovery and have root access to that internal system of our device at the same time.

Samsung devices are naturally a pleasure to root most of the time because we do not have to go to the trouble of getting the bootloader unlocked. The CF-Auto-Root tool can also play a role in unlocking it for us if we do have a device that needs it unlocked. All we have to do in those cases is make sure we have backed up the data because like with all unlocking the bootloader processes, it will perform a factory reset and wipe the data at the same time.

While the CF-Auto-Root tool looks like a breeze when it is operating, there is a good deal of craftsmanship that has gone into the tool. It will swap over your usuall recovery and install a temporary modified version that is capable of getting the SuperSU installed and enabled and then it removes that recovery and flashes the same stock recovery that was running on your device before you started, leaving you with the same device and the only difference being that you now have the SuperSU running.

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.


  • Chainfire was running on the LRX22G.T550XXU1AOJ1 firmware build number when he created the rooting package that is available in this guide. Nobody else needs to be running on that same firmware build number when they flash the rooting file. People just need to make sure that they are running on the Android 5.0.2 software updates and make sure that they have the Samsung Galaxy Tab A 9.7 tablet that comes with the SM-T550 model number.
  • Flashing Chainfire’s CF-Auto-Root tool always trips Knox security if people have a device that comes with Samsung’s Knox security. That means when people unroot the Samsung device with the Knox security; it does not restore the warranty conditions.
  • Users must have a computer that is running a version of the Windows operating system to flash the rooting package found in this guide using the Odin flashing tool. The Odin flashing tool is a great tool made by Samsung developers, but they only made it work on Windows PCs. People who do not have a Windows PC and need to running can try installing a Windows virtual machine on either Mac OS X or Linux computer and see if that helps.
  • Everyone needs to have the Samsung Galaxy Tab A 9.7 that has the SM-T550 model number to use this guide. We can find out the model number of our devices by tapping on the Menu > Settings > About Device > Model Number.
  • Chainfire’s CF-Auto-Root tool can sometimes work across multiple software updates,m but new versions of Android can also bring new bootloaders with them, and that is why we only write the guides based on what Android version we know that work. We only recommend following this guide on the Android 5.0.2 Lollipop software updates, and if you notice the file is not rooting the device, users need to leave a message with the new recovery image on the XDA-Developers forum page that is made for the CF-Auto-Root tool and Chainfire will see the message and use the recovery image file from the new firmware causing the problems to update the rooting tool so that it starts working again.

Download Samsung Galaxy Tab A 9.7 SM-T550 CF-Auto-Root and Drivers

How to Root Samsung Galaxy Tab A 9.7 SM-T550 on Android 5.0.2 Lollipop Using CF-Auto-Root

  1. Unlock the Developer Options menu on the Samsung Galaxy Tab S 9.7 tablet so we can open up the new menu and use the options that are presented to us inside.
  2. Turn on the USB Debugging Mode on the Galaxy Tab 9.7 from the Developer Options menu that we just unlocked so when we connect the tablet to the computer we can make changes to the Android software.
  3. Extract the rooting package to the desktop of the computer and the rooting file and the flashing file is on the desktop.
  4. Double-click on the Odin flashing tool file and the Odin user interface opens so we can see all of the buttons available that help us flash the rooting file soon.
  5. Install the Samsung USB Drivers on the computer so when we connect the Galaxy Tab A 9.7 to the computer the device can be detected by the flashing tool which then allows for the Android rooting to work.
  6. Boot the Samsung Galaxy Tab A 9.7 into the download mode and then connect to the computer with the USB cable that we usually use to charge the battery.
  7. Look for a blue or yellow ID: COM port that is available on the Odin flashing tool user interface and it is there to let people know that the Samsung USB Drivers are working, and the device is added correctly.
  8. Do not make any changes from the default settings that Odin gives people from the buttons and user interface after first opening it up or else users might end up with data wiped.
  9. Click the AP button found on the Odin user interface and then browse through to the desktop location for the rooting file.
  10. Click the Start button found on the Odin app on the computer and the rooting begins its quest to making us the root user of the Android operating system.

In conclusion, that is how we root the Samsung Galaxy Tab A 9.7 tablets with the SM-T550 model number when we have them running on the Android 5.0.2 Lollipop software updates by using Chainfire’s automatic one-click rooting tool he called CF-Auto-Root. Users can tell when it is finished by looking at the display of the tablet and checking out the messages stating that it is getting the SuperSU flashed, cleaning up the cache partition and then reflashing the stock recovery. As soon as those messages are up on the screen the Odin flashing tool shows a green box with a pass message inside and that is when people know they can unplug from the computer.

As soon as the Samsung Galaxy Tab A 9.7 SM-T550 reboots back into the normal mode they can open up the Google Play Store account and start installing any of the root apps that they have in mind. Anyone who does not have any that they can think of can try looking at our best root applications that work on the Android operating systems article for some ideas. The list gives roughly 60 of some of the best root apps that people can install to help their devices in some unique ways.