[GUIDE] How to root Salaxy Tab S2 T817T

androidcues

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Mar 6, 2010
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Well thank you for making that attempt. It confirms we have work to do. My only modding attempts with this device (my first Samsung device after dozens of htc lg etc) has been petitions to Samsung to split with the source code so that (hopefully) ashyx can get busy.

This variant, T817T has got to get a proper root sooner rather than later.

In the meantime flash the source back using sammobile thats what ive done five times everytime i get to your position of that silly bootloop. (does it also say blabla Android is seaenforcing at top left)

Sent from my Nexus 5X using XDA Premium HD app
 
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ashyx

Recognized Contributor
Oct 14, 2012
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Well thank you for making that attempt. It confirms we have work to do. My only modding attempts with this device (my first Samsung device after dozens of htc lg etc) has been petitions to Samsung to split with the source code so that (hopefully) ashyx can get busy.

This variant, T817T has got to get a proper root sooner rather than later.

In the meantime flash the source back using sammobile thats what ive done five times everytime i get to your position of that silly bootloop. (does it also say blabla Android is seaenforcing at top left)

Sent from my Nexus 5X using XDA Premium HD app
Not sure what you're saying here. If you want to root your device just follow the instructions below.
Shouldnt matter if you install twrp for the t810 or the t815

http://forum.xda-developers.com/showthread.php?p=62899774
 
Last edited:

rj_rad

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I've also been following closely for a confirmed 6.0.1 root for the T817T (with LTE support). I'm currently rooted on 5.1.1 and very stable with LTE, but want the new OS features.

Sent from my SM-G935T using Tapatalk
 

k9spy

Member
Dec 29, 2014
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Well thank you for making that attempt. It confirms we have work to do. My only modding attempts with this device (my first Samsung device after dozens of htc lg etc) has been petitions to Samsung to split with the source code so that (hopefully) ashyx can get busy.

This variant, T817T has got to get a proper root sooner rather than later.

In the meantime flash the source back using sammobile thats what ive done five times everytime i get to your position of that silly bootloop. (does it also say blabla Android is seaenforcing at top left)

Sent from my Nexus 5X using XDA Premium HD app
No. It shows the first screen with no notation at the top, and then during the next screen with the animated "Samsung" it blacks-out at about "Sams..." Every. Time.

I DID get it back using a Sammobile image and Smart Switch. the toughest part was getting my SERIAL NUMBER as its not actually on the box anywhere!

I eventually found the boot screen with the SN on it and that allowed me to get the Smart Switch tool to work.

ON ANOTHER NOTE:
Can anyone tell me the hard reason WHY I cannot get this thing to do proper phone calls??

It has a 4G LTE radio. I get LTE data on the data-only card. Why cant I get data and phone when I pop in my smartphone LTE voice and data card??

Is it software or is it somehow actually not able to take regular cellular calls? I want CELLULAR not VOIP.

thx for the help!
K9SPY

---------- Post added at 02:13 AM ---------- Previous post was at 01:18 AM ----------

Right now what I'm trying to do is drop it back to 5.1.1

It boot loops no matter which version I try (of the 4 available T817T 5.1.1 images).

There has to be something that changed since Ashyx' big thread requesting someone to help test the root method. There is a guy on page 2 or 3 that says his T817T LTE works fine with Root and LTE... but I can't get mine past "Step 1"...

:(

---------- Post added at 02:24 AM ---------- Previous post was at 02:13 AM ----------

Not sure what you're saying here. If you want to root your device just follow the instructions below.
Shouldnt matter if you install twrp for the t813 or the t819

http://forum.xda-developers.com/showthread.php?t=3390627
INSTALL:
Boot to download mode.
Flash with Odin 3.10.7 using the AP slot.
Uncheck Auto-reboot.
When ODIN reports PASS, reboot to recovery immediately after flashing using POWER + HOME + VOL DOWN, as soon as the screen goes blank change to VOL UP whilst still holding the other buttons.
TWRP should now boot.



Ashyx,

I don't have to play finger contortionist on my tab... it goes to TWRP with no problem... even if I wait... even if I miss the first boot-loop or three. I just have to hold POWER + HOME + VOL UP... after like 10-15 seconds... the TWRP pops up. If the first splash screen starts before I press the buttons, I have to endure it for an entire loop cycle, but as long as I hold the buttons it will go into TWRP. I am not experiencing that need to Press the buttons quickly and then switch to VOL UP when the screen goes black.

This is why I suspect my particular device might have some different firmware or something odd going on???

Getting to TWRP is never a problem for me.

I can get into TWRP.

I can "Install" any 5.1.1 image or your "permissive" .img files... and they just have no effect. Boot loop. Smart Switch needed to recover to v 6.0.1

then I try again and eventually each iteration is giving me the same results...

I just can't get it to boot ANY ROM other than stock 6.0.1.

Open to ideas or what I may have missed.

K9SPY

---------- Post added at 02:41 AM ---------- Previous post was at 02:24 AM ----------

No. It shows the first screen with no notation at the top, and then during the next screen with the animated "Samsung" it blacks-out at about "Sams..." Every. Time.

I DID get it back using a Sammobile image and Smart Switch. the toughest part was getting my SERIAL NUMBER as its not actually on the box anywhere!

I eventually found the boot screen with the SN on it and that allowed me to get the Smart Switch tool to work.

ON ANOTHER NOTE:
Can anyone tell me the hard reason WHY I cannot get this thing to do proper phone calls??

It has a 4G LTE radio. I get LTE data on the data-only card. Why cant I get data and phone when I pop in my smartphone LTE voice and data card??

Is it software or is it somehow actually not able to take regular cellular calls? I want CELLULAR not VOIP.

thx for the help!
K9SPY

---------- Post added at 02:13 AM ---------- Previous post was at 01:18 AM ----------

Right now what I'm trying to do is drop it back to 5.1.1

It boot loops no matter which version I try (of the 4 available T817T 5.1.1 images).

There has to be something that changed since Ashyx' big thread requesting someone to help test the root method. There is a guy on page 2 or 3 that says his T817T LTE works fine with Root and LTE... but I can't get mine past "Step 1"...

:(

---------- Post added at 02:24 AM ---------- Previous post was at 02:13 AM ----------



INSTALL:
Boot to download mode.
Flash with Odin 3.10.7 using the AP slot.
Uncheck Auto-reboot.
When ODIN reports PASS, reboot to recovery immediately after flashing using POWER + HOME + VOL DOWN, as soon as the screen goes blank change to VOL UP whilst still holding the other buttons.
TWRP should now boot.



Ashyx,

I don't have to play finger contortionist on my tab... it goes to TWRP with no problem... even if I wait... even if I miss the first boot-loop or three. I just have to hold POWER + HOME + VOL UP... after like 10-15 seconds... the TWRP pops up. If the first splash screen starts before I press the buttons, I have to endure it for an entire loop cycle, but as long as I hold the buttons it will go into TWRP. I am not experiencing that need to Press the buttons quickly and then switch to VOL UP when the screen goes black.

This is why I suspect my particular device might have some different firmware or something odd going on???

Getting to TWRP is never a problem for me.

I can get into TWRP.

I can "Install" any 5.1.1 image or your "permissive" .img files... and they just have no effect. Boot loop. Smart Switch needed to recover to v 6.0.1

then I try again and eventually each iteration is giving me the same results...

I just can't get it to boot ANY ROM other than stock 6.0.1.

Open to ideas or what I may have missed.

K9SPY
UPDATE: TWRP for 813 and 819 BOTH fail.

TWRP for 810 is the one that works every time.

I am going to try killing the encryption using the T810 TWRP.

---------- Post added at 02:46 AM ---------- Previous post was at 02:41 AM ----------

UPDATE: Blowing out the encryption worked when I switched to TWRP T810 3.0.2

I was able to "install" the boot.img patcher.

Proceeding.

---------- Post added at 03:35 AM ---------- Previous post was at 02:46 AM ----------

How to Root Samsung Tab S2 T817T (Step-By-Step Guide)

Obligatory notices

  • This procedure is only for the Samsung Tab S2 SM-T817T
  • Performing any of the operations in this post risks bricking your device
  • Performing any of the operations in this post will irreversibly void your warranty
  • Performing any of the operations in this post will irreversibly trip Knox and make it unusable for Samsung Pay (and any other features which require Knox)
  • I am not using a SIM card with my device, so I have no idea how this procedure will impact that functionality. People on the XDA thread (forum.xda-developers.com/tab-s2/help/sm-t817t-root-t3206079) where I pieced together these instructions from suggested that the SIM card still works for mobile data. UPDATE: Later in this thread people have confirmed that mobile data DOES work after rooting. Yay!

Introduction

OK, so a brief story of how/why I was forced to figure this method out. I found a listing on eBay for the Samsung Tab S2 T810N, paid $300 for it and received it into my impatient hands. Without checking the specific version of the tab I push right into the rooting procedure I had thoroughly researched for the T810N. Suddenly my tablet is in a bootloop and I am panicking that it is ruined. In the recovery mode I see that I have the T817T. Anger towards the seller aside, I frantically research how to recover the T817T. There is virtually no documentation for this procedure, so I am forced to mix-and-match. After about 5 hours, the tablet is finally up, running, and rooted!

TL;DR - verify your model number before attempting root

Files

All the files can be found here (drive.google.com/folderview?id=0BxPb6XhrMsaoa01zdjVUVWMzQWs&usp=sharing). Let me explain what each file is:
  • T817TUVS2AOL1_T817TTMB2AOL1_TMB.zip (drive.google.com/file/d/0BxPb6XhrMsaoeGpmbnRoeFA5MUU/view?usp=sharing) - This is an Android 5.1.1 image for Samsung Tab S2 T817T. You may not even need this, but just in case. If you use this, unzip the file to get the .md5 file!
  • SAMSUNG_USB_Driver_for_Mobile_Phones_v1.5.51.0.exe (drive.google.com/file/d/0BxPb6XhrMsaoc09qNm41OFhKLWc/view?usp=sharing) - Necessary Windows drivers for Samsung devices. Install this!
  • Odin3_v3.10.6.zip (drive.google.com/file/d/0BxPb6XhrMsaoLWtkek9UYWZGNGM/view?usp=sharing) - A flashing tool for Windows. Unzip these files!
  • twrp_2.8.7.1_LL_5.1.1_t810.tar (drive.google.com/file/d/0BxPb6XhrMsaoN0N6V3JzX290aGc/view?usp=sharing) - This is a custom recovery tool for Android. Although designed for the T810 series, it does work on the T817T. Do not untar these files!
  • Tab_S2_t817T_boot.zip (drive.google.com/file/d/0BxPb6XhrMsaob0hyME0zV2EtSnc/view?usp=sharing) - A custom bootloader for the T817T which is required to root. Do not unzip these files!
  • BETA-SuperSU-v2.52.zip (drive.google.com/file/d/0BxPb6XhrMsaoNk9uWkxRZ0wwTE0/view?usp=sharing) - A newer version of SuperSu which works on the T817T. Do not unzip these files!

Preparation

  1. Download all the files above. Install, unzip, and untar (or not) as instructed.
  2. Settings -> About device - Verify that you have the SM-T817T
  3. Settings -> About device - Verify that you are running Android 5.1.1
  4. Backup all your files, contacts, apps, etc.
  5. Verify that your device has at least 80% charge

Rooting Procedure

(OPTIONAL) Flash Android 5.1.1 image. This step is not necessarily required. If you are running Android 5.1.1, then you should be fine. However, this is what I had to do, since I got into a bootloop by not checking my version number first (yes, stupid me). Further, if you have any errors or issues below you absolutely will need to perform this step to recover and restart the rooting procedure. Anyway:
  1. Turn off your tablet
  2. Boot into 'download mode' by holding POWER + VOLUME DOWN + HOME. Verify by pressing VOLUME UP
  3. Run program Odin3 v3.10.7.exe
  4. Plug your device to the computer with a USB cable
  5. Verify that Odin message window states "<ID:#/###> Added!!"
  6. Click the "AP" button in Odin and select T817TUVS2AOL1_T817TTMB2AOL1_T817TUVS2AOL1_HOME.tar.md5 file
  7. Press "Start" button and wait for Green "PASS" message to appear. This will take a long time since this is a large file
  8. Your device will automatically reboot
  9. Perform basic setup procedures on Android so that you can access the Settings menu

From this point onward your must perform every step in the exact order as stated. Not doing so seriously risks putting your device into a bootloop or bricking it. You should be able to recover from that, but still...

Enable developer options:
  1. Settings -> About device - click on "Build number" like 10 times until "Developer options" are enabled and button is added to Settings menu
  2. Settings -> Developer options - enable:
    • Developer options - ON
    • OEM unlock - ON
    • USB debugging - ON

Flash TWRP recovery software:
  1. Turn off your tablet
  2. Boot into 'download mode' by holding POWER + VOLUME DOWN + HOME. Verify by pressing VOLUME UP
  3. Run program Odin3 v3.10.7.exe
  4. Plug your device to the computer with a USB cable
  5. Verify that Odin message window states "<ID:#/###> Added!!"
  6. Click the "AP" button in Odin and select twrp_2.8.7.1_LL_5.1.1_t810.tar (drive.google.com/file/d/0BxPb6XhrMsaoN0N6V3JzX290aGc/view?usp=sharing) file
  7. Press "Start" button and wait for Green "PASS" message to appear
  8. Your device will automatically reboot, verify that the tablet boots properly

Copy bootloader and SuperSu to tablet:
  1. With your tablet on, attach it to your computer with a USB cable
  2. Navigate to the root directory of the tablet storage
  3. Copy Tab_S2_t817T_boot.zip (drive.google.com/file/d/0BxPb6XhrMsaob0hyME0zV2EtSnc/view?usp=sharing) and BETA-SuperSU-v2.52.zip (drive.google.com/file/d/0BxPb6XhrMsaoNk9uWkxRZ0wwTE0/view?usp=sharing) files to the root directory
  4. Detach tablet from your computer

Flash custom bootloader with TWRP:
  1. Turn off your tablet
  2. Boot into 'recovery mode' by holding POWER + VOLUME UP + HOME
  3. Select "Install"
  4. Select Tab_S2_t817T_boot.zip and click "Install"
  5. Verify install with slider
  6. STOP HERE!!! READ THE NEXT STEPS CAREFULLY!!!
  7. TWRP will now offer to install SuperSu for you. DON'T DO IT!! Doing this will cause your tablet to bootloop because it is not the right version of SuperSu
  8. Decline the SuperSu installation and restart your tablet
  9. Verify that the tablet boots properly

REPEAT "Flash TWRP recovery software:" instructions. This is a necessary step. Without it your tablet will go into a bootloop and you will need to start the root procedure over. Weird, I know. Just do it.

Flash SuperSu with TWRP:
  1. Turn off your tablet
  2. Boot into 'recovery mode' by holding POWER + VOLUME UP + HOME
  3. Select "Install"
  4. Select BETA-SuperSU-v2.52.zip and click "Install"
  5. Verify install with slider
  6. Reboot the tablet
  7. DONE! Assuming your tablet boots properly your should now be rooted and see the SuperSu app installed on your tablet.

Recovery

If you need to recover from some error you will need to start over completely. Use the Android 5.1.1 image file T817TUVS2AOL1_T817TTMB2AOL1_TMB.zip (same as above) to perform this. You can also use this Android image to restore the device to an unrooted version. This will not restore your warranty or Knox.

Extras

  • To get rid of the pesky KNOX security notification which will persist, use a program like ROM Toolbox Lite (play.google.com/store/apps/details?id=com.jrummy.liberty.toolbox&hl=en). In the App Manager select the following apps and 'freeze' them:
    • SecurityLogAgent 4.1.4 (this one is critical to freeze!)
    • KNOX 2.3.0
    • KNOX 2.3.1
    • KNOX II 2.3.0
    • KNOX SetupWizardClient 2.3.0
    • KnoxFolderContainer 2.4.0
  • To get rid of the "No SIM card inserted" notification (if you aren't using a SIM card) use the build.Prop Editor in ROM Toolbox Lite. Add the following entry:
    • Property Name: ro.config.donot_nosim
    • Property Value: 1

Conclusions

I put this guide together for people who are having trouble finding a simple and easy-to-follow guide for rooting the T817T. Hopefully this can save you a number of frustrating and worrisome hours (not that rooting your Android device is ever a calm undertaking).

Please let me know if there are any errors in the procedure or if you have any suggestions regarding the steps or presentation of the material. Enjoy being a super-user!

Original content: blog.mchristian.co/blogs/post/How-to-Root-Samsung-Tab-S2-T817T/
OP:

the step that you missed appears to be the part about wiping encryption out. once Ashyx directed me to his last link, that is the part that was missing that opened up everything.

I am making good progress now.

K9SPY
 

ashyx

Recognized Contributor
Oct 14, 2012
15,110
9,823
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UPDATE: TWRP for 813 and 819 BOTH fail.

TWRP for 810 is the one that works every time
Whoops, my bad. Getting myself confused now as to which model is which. Of course T817T is actually the T815.
Twrp for T810 or T815 should be used.

http://forum.xda-developers.com/showthread.php?p=62899774

This thread has started to over complicate things and confuse people.

All the info you need to root is in the link above.
Nothing else is required.
 
Last edited:

MERICA'!!

New member
Oct 29, 2014
4
0
0
Los Angeles
Rooting T-Mobile Galaxy tab s2?

I don't really know how to use these forums but i'm basically trying to root my T-Mobile Samsung Galaxy Tab s2 7.0 Nougat device build T817TUVU2BQE2. I'm searching through various forums but can't quite pull the trigger because i don't know if any of them would work on my device. something always seems to be different from mine either that or there's not enough information and I heard that some might brick my device so i'm just taking extra precautions. Can anyone put my mind to ease once and for all with a sure method?
 

ashyx

Recognized Contributor
Oct 14, 2012
15,110
9,823
0
I don't really know how to use these forums but i'm basically trying to root my T-Mobile Samsung Galaxy Tab s2 7.0 Nougat device build T817TUVU2BQE2. I'm searching through various forums but can't quite pull the trigger because i don't know if any of them would work on my device. something always seems to be different from mine either that or there's not enough information and I heard that some might brick my device so i'm just taking extra precautions. Can anyone put my mind to ease once and for all with a sure method?
The answer is literally in the post above yours.
 

MERICA'!!

New member
Oct 29, 2014
4
0
0
Los Angeles
Samsung Galaxy Tab s2 Nougat 7.0 T817T

Hey so i'm looking over the prep section of the guide and it say "Verify that you are running Android 5.1.1" but i'm running Android Version 7.0.
What does that mean for me? my apologies if my questions seem basic bear with me i'm still figuring out how to mess with my android and i'm a noob.
 

ashyx

Recognized Contributor
Oct 14, 2012
15,110
9,823
0
Hey so i'm looking over the prep section of the guide and it say "Verify that you are running Android 5.1.1" but i'm running Android Version 7.0.
What does that mean for me? my apologies if my questions seem basic bear with me i'm still figuring out how to mess with my android and i'm a noob.
The thread is out of date. You need to consult the original twrp thread.
 

MERICA'!!

New member
Oct 29, 2014
4
0
0
Los Angeles
Samsung Galaxy Tab S2 T817T 8.0 (display) Nougat 7.0 T817TUVU2BQE2

Hey, so, ive been trying to find info on a rooting procedure
For my device and theres been a couple things off about this
One which leads me to believe that theres more of a Tia
Of bricking my device or something. I don't know too much about what goes into finding the the right files to root.

Can you possibly help me out?