[Galaxy Tab S2 General] miguimercadob:
This guide has been made for sm-t710, but you can follow it for any model (t715, t810 and t815) by just

using the right Odin flashable TWRP file and Odin flashable firmware file for your device

.

Here you have the link(for sm-t710):

T710XXU2CPD9_T710BTU2CPD9_BTU.zip

Just downloaded from www.sammobile.com T710XXU2CPD9_T710BTU2CPD9_BTU/ and re-uploaded to MEGA.

Tested and working on my spanish sm-t710, in my case I had my device rooted and with TWRP, as well as a 5.1.1 Optimal Rom.

After following this instructions, somehow i didn't loose any personal data or installed aplication, so this guide will just update our device from lollipop rom to Marshmallow

BUT we will loose root AND TWRP

, just follow the guide to reinstall TWRP and root after update. If you didn't had root before following this guide, you can root the tab before of after it, but I recomend you to first install TWRP and backup personal data before following this guide.

Instructions:​

Requirements:​

->Root the tablet. (Recomended)

->Install TWRP (Recomended but I think it isn't needed)

->Enable USB Debugging on your tab.

->Make sure you have Samsung drivers installed on your PC.

->Download and extract the zip file to get the firmware file which is in .tar.md5 extension.

->Download and extrat Odin from here: Odin3_v3.10.7.zip

Installation:​

1->Turn off your tab and boot it into the Download Mode. To do this, turn off your device and then press and hold Volume Down + Home + Power buttons simultaneously for 2-3 seconds. When you see the warning screen with a yellow triangle sign, press the Volume Up/Down key to enter Download/Odin mode.

2->Download the required Odin.zip file and extract the file on your PC. You will get the Odin3_v3.10.7.exe file. Open it as the administrator to get to the Odin window.

3->Connect your Galaxy device to the computer using the USB cable.

4->When you connect the device, the ID: COM port on Odin will turn Blue. You’ll also see“Added!!” message to indicate successful connection. If Odin des not detect your tab, try to reinstall drivers, try another usb cable and another usb port.

5-> Check "AP" box and click on AP. A window will pop up, just go to the folder where you extracted the firmware and select T710XXU2CPD9_T710BTU2CPD9_HOME.tar.md5 file (name may vary according to device model)

6->Now Odin is checking MD5 and will freeze for a minute or so, but don't worry, just let Odin work.

7->Click on the "Options" section and make sure that only the Auto Reboot and F. Reset Time boxes are checked. (Do not, in any case, check Re-Partition box).

8->Now, click the Start button on Odin to begin firmware installation.

10->Once you get a PASS! message on Odin, your device will restart. It’s the green signal that indicates a successful installation.

11->Once our device restarts, you can disconect it.

12-> Enjoy Marshmallow :fingers-crossed: on our Tab s2 (First boot will last for some minutes, just be patient! :laugh: )

TWRP installation:​

1->Download TWRP from this THREAD according to your device (Lollipop 5.X.X just works fine). Thanks to ashyx.

2->Flash with odin following steps 2 to 11 from above.

12->Enjoy Marshmallow with TWRP!

ROOT:​

1->Download the SuperSu TWRP flashable ZIP from this THREAD (don´t extract it) and put in on the root of the internal sd by conecting the device to pc.

2->Turn off our device.

3->Hold HOME+VOL UP+POWER until TWRP screen apears.

4->If it says something about reading-only mode, just swipe that whtie triangles from below.

5->On the main menu, select "Install" and click on the SuperSu zip, then swipe to confirm flash.

6->Reboot and enjoy Marshmallow with TWRP and root! :highfive: :good: