The Samsung Galaxy Tab S2 tablets, can get rooted a couple of ways. If there is ever a custom recovery image available for your device, then you can flash it and then flash the version of the SuperSU that is working for the tablet. That is the method that people who want to install a custom recovery usually follow because it ends up being slightly the quicker of the two ways to end up with both a custom recovery and the device rooted.

Nevertheless, there is another way we can root the Samsung Galaxy Tab S2 thanks to Chainfire and his CF-Auto-Root one-click rooting tool. Many people prefer using CF-Auto-Root because it is quick and easy. It is also the preferred method for anyone who does not want a custom recovery installed on the Samsung Galaxy Tab S2 tablet.

Samsung Galaxy Tab S2 9.7 SM-T815Y

In case you are not sure, a custom recovery is what you need if you want to start installing custom ROMs and change the version of Android. You do not need root access to install a custom ROM. Some people just like to do that for something extra. The act of rooting the Android operating system is what you need to do to be able to install all of the apps that are out there being developed that require access to the root file system before they can run. We see these applications all over the Google Play Store because Google does not mind that they are there, it just doesn’t want to give everyone root access automatically by default. Google prefers giving people a device that comes with the operating system locked and then it is up to you if you want to root it and unlock it so the apps can be installed. The kind of apps that I am talking about include popular titles like Titanium Backup, Greenify, ROM manager, Xposed, Dumpster, Game Killer,

Details We Should Know

  • Chainfire was running the LRX22G.T815YDVU2AOK1 firmware build number on his personal Samsung Galaxy Tab S2 tablet with the SM-T815Y model number when he came up with the rooting file that is available in this guide. Nobody else necessarily needs to be running on that same firmware build number that he was running when he created the tool. The following rooting file found in this guide should work for all Android 5.0.2 Lollipop software updates that have rolled out for the SM-T815Y model number.
  • You must have the Samsung Galaxy Tab S2 9.7 with the SM-T815Y model number when you use this guide. Flashing the rooting file on the wrong number can result in the device getting bricked.
  • You must have a computer that is running a version of the Windows operating system to use this guide. The CF-Auto-Root tool is an Odin-based one-click rooting tool that can only be flashed with Odin. The Odin app only works on a Windows computer. Anyone who cannot find a Windows computer can try settings up a Windows virtual machine.
  • If you are finding the CF-Auto-Root tool is not flashing, or it flashed, but the device now does not boot up again, it could be because a new bootloader is present in the firmware you are running. These times are very rare because they are usually only around in new versions of Android, and if you followed the guide on Android 5.0.2 Lollipop, then there are no new versions of Android to worry about here. Nonetheless, if you are facing the problem, you can leave the new recovery image found in the firmware on the CF-Auto-Root tool thread made over at the XDA-Developer’s website for Chainfire to see.

Files We Need

  • Download the CF-Auto-Root tool for the Samsung Galaxy Tab S2 9.7 SM-T815Y tablet when it is running on the Android 5.0.2 Lollipop software updates.
  • Download the Samsung USB Drivers for the Windows computer.

Rooting the Samsung Galaxy Tab S2 9.7 SM-T815Y running on the Android 5.0.2 Lollipop software updates

  1. Log into the Windows computer using the administrators password and details so that the Odin flashing app can run on the computer and allow for the flashing.
  2. Unlock the Developer Options menu on the Samsung Galaxy Tab S2 tablet so you can then enter that menu and make a change.
  3. Enable the USB Debugging Mode from the Developer Options menu so you can make some changes to the Android software on the tablet.
  4. Extract the rooting file to the desktop of the computer and the Odin flashing application and the CF-Auto-Root are available on the desktop now.
  5. Run the Samsung USB Drivers on the WIndows computer so the Samsung Galaxy Tab S2 tablet can be detected by the Odin flashing application.
  6. Double-click on the Odin executable file and the flashing tool user interface opens.
  7. Boot the Samsung Galaxy Tab S2 9.7 SM-T815Y into the download mode and then connect it to the computer with the USB cable.
  8. Check that the Odin user interface shows a blue or yellow ID: COM box now which is showing that the Tab S2 9.7 is connected.
  9. Click the AP button in Odin and then browse through to the desktop and the select the rooting file that shows the CF-Auto-Root in the file extension.
  10. Click the Start button from the Odin app on the computer and the rooting begins.
  11. Check the display of the Samsung Galaxy Tab S2 9.7 and wait until it shows it is flashing the SuperSU, cleaning up the cache partition and then reflashing the stock recovery.
  12. Check the computer once again and wait until it shows a green box with a pass message inside it.

In conclusion, that is how to root the Samsung Galaxy Tab S2 9.7 SM-T815Y tablet when it is running on the Android 5.0.2 Lollipop software updates. The rooting method makes use of Chainfire’s CF-Auto-Root tool, and it is the most traditional method that works on the Android 5.0.2 Lollipop updates. That means you can unroot from the SuperSU app or by flashing a stock ROM on the device. It does not unroot when you take a factory reset like the systemless root versions would.

Rooting is all about root apps, and now you can install any of them, You might be interested in checking out the best root applications available for the Android operating system if you do not already have them in the memory bank. Most of them are available from the Google Play Store, but there is no easy way to find them unless you already know the names. Google is your friend if you need to find out more information about more apps.

CF-Auto-Root on XDA-Developers

Chainfire, the developer of the CF-Auto-Root tool available in this guide, has created a CF-Auto-Root tool thread on the XDA-Develoeprs website. You can use the CF-Auto-Root thread on the XDA-Developers site for requesting new root methods for devices that are not currently available.


Note that flashing a CF-Auto-Root file (regardless of the device) wipes the data if the device storage is encrypted. For everyone else, there should be no data loss when rooting with the CF-Auto-Root tool.

Samsung’s Knox security

Some smartphones and tablets in the Samsung range come with Samsung’s Knox security. The CF-Auto-Root tool trips Knox which prevents you from unrooting and using the warranty again.

Flash Counters

Any device with a target flash counter is triggered when using the CF-Auto-Root tool. Chainfire’s Triangle Away supports many devices for this problem.