yashsingh1/xdaforums huggingface dataset:
[Galaxy Tab S2 Android Development] hga89:
CF Autoroot not sticking after installing CM 12.1

I bought the T-810 model which downloaded 5.1.1 while I was trying it out. Per the instructions in the first post, I installed the permissive kernel, rooted it, installed TWRP, used it to make a backup on a SD card and proceeded to install the latest version of CM 12.1, latest gapps and then reinstalled all my apps and data from a previous tablet.

Everything seemed to go well but root does not seem to have stuck. Any ideas what I should check too see what might be wrong? Can I fix it without losing CM, gapps, and my own apps and data?

Thank you!
[Galaxy Tab S2 Android Development] ashyx:
Root is wiped when you flash a different os.

Just root again using twrp.
[Galaxy Tab S2 Android Development] damador:
triping knox dont break warrantry
[Galaxy Tab S2 Android Development] Coronado is dead:
Once Knox is tripped, it's tripped for good (at this point in time)
[Galaxy Tab S2 Android Development] InsayneShane:
Okay, this tut is all over the place. I'm on the Canadian model (T817W). Is root even available for this model?
[Galaxy Tab S2 Android Development] fantasylovevn:
did it work with t715C??? mine with "C"-chinese version
[Galaxy Tab S2 Android Development] flupke02:
Hi there, I could really use some help here, did root some phones before, but consider myself still a noob. Tried flashing my 810 (android 5.0.2) just to root it, not to install custom roms. It did not succeed, though I did follow the guide. First Odin gave back a fail 2 times, but the third time it passed (maybe a bad usb cable). But after finishing the process apparently successfully, the tablet rebooted in a bootloop. I tried some other things, like this one from Rockyp49 (http://xdaforums.com/showpost.php?p=64635194&postcount=79), but that didn't work out either, though all seemed to be successful. Only thing I did different was flashing SuperSu Beta v-2.67 instead of SuperSu Beta v-2.66, as I assumed that would be the better one...

I can only get to the download screen or to Twrp. Don't know what to do next. Should I try to flash a rom, although I did not wanted to do so? Or is there another thing I could try?

[Edit] just read about 'Enable OEM unlock' in developer settings. Never heard of that one before; never needed to do that either rooting other devices. Could this be the cause of the problem and if so, what to do now?
[Galaxy Tab S2 Android Development] hga89:
Rerooting after installing CM 12.1

Not sure what you mean. Do you mean: (1) using TWRP to again install the same release of CF-autoroot I used to originally root the phone, (2) using TWRP to restore an entire partition, or (3) doing something else using TWRP? I could not find an option similar to "restoring root" in TWRP...

Thank you.
[Galaxy Tab S2 Android Development] RoelAFCA:
SuperSU beta 2.67 is for systemless root and requires some different proceedings; it's all there in the SuperSU thread. I myself am on SuperSU 2.48 beta, should work for LP 5.0.2 as well.
[Galaxy Tab S2 Android Development] hga89:
Not sure what I was thinking... All I needed to do was enable root as a developer option in the phone settings in CM 12.1...
[Galaxy Tab S2 Android Development] flupke02:
Ok, thanks. Tried flashing that one, did not resolve the bootloop problem. I did manage to flash stock rom though, so that's an improvement :) Don't know if the supersu version helped, because I did not try flashing anything before just now. Now I am back where I started; tablet not rooted :( Could I try flashing the supersu again to unroot or should I try the cf-autoroot thing once more?
[Galaxy Tab S2 Android Development] ashyx:
All systemless root versions can be used on any device including system root only devices.
[Galaxy Tab S2 Android Development] RoelAFCA:
Thanks for clearing that up!
[Galaxy Tab S2 Android Development] IngoPan:
is there a way to root yet without triggering knox to 0x1?
[Galaxy Tab S2 Android Development] Riigel:
Hello,

i have rooted my Tab S2 715 (5.0.2) with this method and it works great.

Is it save to update 5.1.1 and is the tab still rooted after the update?

How i know if the knox flag is triped? Is there a software which can read the knox byte?

thx.
[Galaxy Tab S2 Android Development] danyvw:
Yo can see it when booting in Download Mode but you can use an app too like Phone Info from the market
[Galaxy Tab S2 Android Development] Henri67:
My tablette SM-T810 has a bootloop after rooting with cf autoroot I reinstalled the rom so the tablette work but I can't root it

I tested all method on internet nothing work I have the T810XXU2AOL6_T810OXA2AOL6_HOME rom on my tablette can you help me to root my tablette plz !
[Galaxy Tab S2 Android Development] halloarno:
Are you sure your android version matches the cf autoroot-android-version?
[Galaxy Tab S2 Android Development] Henri67:
yes I have 5.02 android version and I use 5.02 cf auto root for sm-t810

and my buid version is LRX22G.T810XXU2A0L6
[Galaxy Tab S2 Android Development] ashyx:
Root it with twrp instead using the supersu v2.65 zip
[Galaxy Tab S2 Android Development] Henri67:
I test this methode but I had a bootloop so I go to the recovery and do factory reset and when I start the tablette I have root acces thanks ! :)
[Galaxy Tab S2 Android Development] ashyx:
Something else like a bad app was likely causing the bootloop if factory reset solved it.
[Galaxy Tab S2 Android Development] Lambetts:
Sorry to ask, but is the Y variant supported? And what roms and kernels can I use with the Y variant? I don't think I've seen any yet. Haha.

Thanks!
[Galaxy Tab S2 Android Development] mankvl:
hello everyone, ordered 710 today and will OFC root it the first day I will get it because living without root is just painful. Looked all the treads and didn't found any information about OTA. In mine experience after root OTA is not working anymore unless you unroot your device. Is there a way to unroot if I use this root method?. Or maybe there is a non-knox tripping root method that works with 710? With my S4 the biggest pain of rooting was that I had to manually flash a new firmware every time it's released and do a clean flash :/ Is there a way to have root and get latest updates and root the phone again?
[Galaxy Tab S2 Android Development] DeeXii:
I keep getting a "unauthorized actions detected" after I flash recovery, root, and the kernel.

Any idea what this is? Knox? How can I fix it?
[Galaxy Tab S2 Android Development] mankvl:
Just searched the xda and found this at S6 formu. Disable "Security Log Agent". This app shows the notification. It's a common problem in samsung devices and I beleve it have to do smth with Knox, so if u are rooted just freeze it totally. Dunno how many files are in tab S2 with knox
[Galaxy Tab S2 Android Development] mitchpstreet:
Worked like a Charm on my S2 Wifi tab; SM-T810; Andriod version 5.1.1

Im a complete noob, so it took a few hours of reading forum posts and watching basic youtube videos before i was ready to give this a try. Once I had all the proper information and was familiar with the software it took less than 5 min from start to finish. Thanks everyone for your posts and keep up the good work!
[Galaxy Tab S2 Android Development] DroidManIc:
Hello, I'm looking to return my sm-t810 to stock so I can return it to the store. I'm having trouble finding the north america/US stock firmware, I have the wifi version. Any help is appreciated!
[Galaxy Tab S2 Android Development] ashyx:
Look for XAR cellular south.
[Galaxy Tab S2 Android Development] iteam:
Since you posted a "new" autoroot for LOLLIPOP 5.1.1 Is there still a need to flash the LOLLIPOP 5.1.1 custom kernel? Just want to be clear before I indulge:D
[Galaxy Tab S2 Android Development] TBX911:
Not working !!

Hi, I did every think like described... :)

Problem :crying: : When I start my SM-T810 Tab I get on the left bottom display "Kernel is not seandroid enforcing" .... after that it ask like normaly my pin code ... it seams to start normaly but after +/- 10 sec it restart again.... times & times. Can somebody help me ?
[Galaxy Tab S2 Android Development] ashyx:
I assume you are running 5.1.1 and didn't install the permissive kernel or you did but something went wrong?

Install supersu via twrp.
[Galaxy Tab S2 Android Development] Josephigloe:
Yeah sounds like kernel

If I have helped, please hit the like button.
[Galaxy Tab S2 Android Development] TBX911:
I will try todau and let you know if it works. In any case thank you ;):laugh:
[Galaxy Tab S2 Android Development] michaubpl:
Is it a safe way? Is this the way without flags KNOX?

Wysłane z mojego SM-T815
[Galaxy Tab S2 Android Development] msprenger:
Its quite save, but it trips knox..

Lg msprenger
[Galaxy Tab S2 Android Development] vepman:
Is it possible, that cf-autoroot also works with MM 6.0.1?

Since yesterday there is a DBT-version called T810XXU2CPD9.

Knox was also triggered in version 5.0.2
[Galaxy Tab S2 Android Development] ashyx:
No, just flash supersu with twrp.
[Galaxy Tab S2 Android Development] ianmacd:
Yes, there is an official CF Auto Root for this firmware.

I've just installed the BTU (UK) Marshmallow on my PHN (Dutch) T710 and then rooted the device with the new CF Auto Root put up by Chainfire yesterday, so my tablet is now happily running systemless root with SuperSU 2.74.
[Galaxy Tab S2 Android Development] vepman:
To late for me.

I've done it by ashyx's advice.

That's also a good way to root.
[Galaxy Tab S2 Android Development] riane9:
Is there a way on how to reset knox? I can't check for updates via OTA.
[Galaxy Tab S2 Android Development] edan1979:
unfortunately... knox cant be reset.
[Galaxy Tab S2 Android Development] msprenger:
Hi [MENTION=535343]all[/MENTION],

How can i root my tab 810 on german 6.0.1, when it was not rooted before?

Blessings msprenger
[Galaxy Tab S2 Android Development] whynottoday:
T813N is here. Anyway to root it?
[Galaxy Tab S2 Android Development] riane9:
How will I check for updates?
[Galaxy Tab S2 Android Development] mikle_01:
Also want to update my (still rootet) T810 with TP 5.1 to MM 6.0.1 - but ist semms, that there isn't any way to root now?

---------- Post added at 11:53 AM ---------- Previous post was at 11:53 AM ----------

Also want to update my (still rootet) T810 with LP 5.1 to MM 6.0.1 - but ist seems, that there isn't any way to root now?
[Galaxy Tab S2 Android Development] ashyx:
You guys need to look just a little bit harder:

http://xdaforums.com/showthread.php?t=3205686
[Galaxy Tab S2 Android Development] OdinsAuge:
I also have a rooted t710 LP 5.1, is this the correct workflow to update?

1. flash stock rom MM 6.0.1

2. flash new TWRP

3. flash SuperSU wit hTWRP
[Galaxy Tab S2 Android Development] lewmur:
I won't guarantee it will work for you, but I'd installed MM and rooted it on my T810 so Knox was tripped. When the cellular south version became available this morning, I used ODIN to revert to stock 5.1.1 and then the update from Samsung worked.
[Galaxy Tab S2 Android Development] cavalier666:
hi all followed this guide and was perfect, but no i have tried to factory reset my tablet from within settings and now its got stuck at samsung screen, i have managed to boot into download mode with showing knox void, but drivers not showing up in odin, i need to reflash this back to stock, is this possible ? how can i fix please
[Galaxy Tab S2 Android Development] ashyx:
It takes around ten minutes to boot after factory reset
[Galaxy Tab S2 Android Development] cavalier666:
tried a diif usb cable and managed to get connected and restored stock. waited like 20 mins and nothing, all good now. thanks anyway :)
[Galaxy Tab S2 Android Development] sausje85:
Which one should I be picking for the 813 model?

(surprises me how little info there is for that model :eek: )
[Galaxy Tab S2 Android Development] ashyx:
Neither see the relevant thread.
[Galaxy Tab S2 Android Development] sausje85:
All I can find about the T813 is the TWRP topic.

If I understand it correctly, I can just flash TWRP and root from there with the 813 model?
[Galaxy Tab S2 Android Development] ashyx:
Correct, that's what is stated in the OP of that thread.

You might want to read the whole thread though first.
[Galaxy Tab S2 Android Development] jaume600:
Hi guys, will there be a root for sm-t810 running 6.0.1?

Thx!
[Galaxy Tab S2 Android Development] cabecadeaco:
root sm-t810 6.0.1

Hello,

root for sm-t810 running 6.0.1!

I have my tablet with Android 6.0.1!

But I can not root!

It is possible to help ?!

Thanks

Hug
[Galaxy Tab S2 Android Development] ashyx:
Use twrp and supersu
[Galaxy Tab S2 Android Development] alexeyp:
I'm trying to install TWRP 3.0.0-1 on t815y, using Odin. Installation goes fine - Odin finishes correctly. But when I'm rebooting to recovery, it shows 'Installing system update' for around 20 seconds, then draws error picture, followed switching to standard recovery.

My developer menu in Settings doesn't include OEM option.

What is it I'm missing here?

Without TWRP, I can't install CM13 - standard recovery fails to verify zip file.
[Galaxy Tab S2 Android Development] pocky7653:
Samsung Galaxy Tab S2 SM-T710 stuck in boot loop after trying to root it using Odin.

SOLUTION FOUND: This is what worked for me, may not work for others. I must have missed a step or something but I was supposed to load t710_5.1.1_boot into odin and press start. It got me out of boot loop and got my device rooted. Sorry if confusing, noob rooter.

From this site, I followed the instructions.

http: //android central.us/20 15/10/how-t o - ro ot-ga laxy-tab-s2-sm-t810-sm-t710-sm-t715

I don't know if I messed up somewhere.

Here's what I tried to do to resolve the problem.

1. Wiped cache partition

2. Reset to factory settings/wiped data

3. Turned off device for 5-10 minutes

All did not work.

Some sites say to wipe dalvik cache by going to advanced settings in recovery but I can't find any option. I am not an expert in Androids so don't be too technical. What else should I do...?
[Galaxy Tab S2 Android Development] alexeyp:
I've got through the following steps:

1) Install TWRP with Odin: failed.

2) Install CF auto root with Odin: success. Boot to recovery - failed to install update, then switched to original recovery.

3) Install TWRP with Odin: success. Boot to Android: boot loop

4) Boot to TWRP: success. Installed CM13: success, booted (microphone problems with calls).

5) Installed Dirty Unicorns: success, same problems with microphone.

6) Restored original Samsung image with Kies 'Update firmware'.
[Galaxy Tab S2 Android Development] almahix:
Is it possible to tell if fast charge is enabled in the kernel on my sm t-813? I looked w/ kernel adiutor but I can't tell. It seems to charge very slowly. I understand that the battery capacity is considerably greater than a phone, but it is very slow.
[Galaxy Tab S2 Android Development] deanobro:
Does this work for mm 6.0.1?
[Galaxy Tab S2 Android Development] ianmacd:
Yes.
[Galaxy Tab S2 Android Development] deanobro:
Cannot for the lifeof mefigure out how to do it without a pc.
[Galaxy Tab S2 Android Development] ianmacd:
No, you do need a PC.

You didn't quote anyone when you asked if "this" was possible, so I assumed you were referring to the subject of the thread, namely rooting using CF Auto Root. That works on 6.0.1, but you do need a PC.
[Galaxy Tab S2 Android Development] vichet007:
Sm-t719y

I just bought SM-T719Y. Will this work with this device?
[Galaxy Tab S2 Android Development] ashyx:
Lollipop only, for Marshmallow use twrp and flash supersu.
[Galaxy Tab S2 Android Development] vichet007:
Thanks. Now successfully flashed twrp and supersu.
[Galaxy Tab S2 Android Development] rajiv.1007:
Root SM-T815Y on 6.0.1

Hi,

Don't mean to sound like a broken horn, but if anyone could help on how to root Tab S2, SM-T815Y(Indian version) on 6.0.1, that'd be great?
[Galaxy Tab S2 Android Development] XxPotionMasterXXL:
root my

roooooooooooot plssssssssss​
[Galaxy Tab S2 Android Development] msprenger:
Okay, Flash latest twrp via odin than Flash latest supersu via twrp.. And voila root[emoji106]
[Galaxy Tab S2 Android Development] TheEndHK:
so the 5.1.1 root also works with 6.0.1?
[Galaxy Tab S2 Android Development] ianmacd:
No. 6.0.1 has its own CF Auto Root.
[Galaxy Tab S2 Android Development] TheEndHK:
Can you kinda give me the link?
[Galaxy Tab S2 Android Development] Csetoue:
I'm on T810 and also would like to root my 6.0.1 tab.

Can someone help? Thanks
[Galaxy Tab S2 Android Development] harise100:
Flash TWRP via Odin, flash SuperSU, done!
[Galaxy Tab S2 Android Development] ianmacd:
He doesn't even need a custom recovery. He can simply use CF Auto Root.
[Galaxy Tab S2 Android Development] ashyx:
Which also uses a custom recovery. 6 of one half a dozen of the other.
[Galaxy Tab S2 Android Development] ianmacd:
CF Auto Root doesn't leave a custom recovery behind when it's finished its work. It's a single click root tool.

Why would the user go to the trouble of manually installing TWRP, flashing root and then manually restoring a stock recovery when CF Auto Root automates the whole rooting process?

Most people prefer automation over manual labour and its inherent risk of human error.
[Galaxy Tab S2 Android Development] ashyx:
I said cf-autoroot uses a custom recovery. That is all.

I know full well how cf-autoroot works considering I've ported enough of them to several devices.

Seeing as having stock recovery is completely useless on a modified device why would anyone want to keep it?
[Galaxy Tab S2 Android Development] ianmacd:
To maintain as unmodified a system as possible in the context of a rooted device. Systemless root users frequently aspire to this.

My point was simply that the user asked only how to root his device, so I felt that an answer that merely rooted the device without leaving other areas of it in a changed state was the cleaner solution.
[Galaxy Tab S2 Android Development] msprenger:
Is there a way to root our tab without tripping Knox

Lg msprenger
[Galaxy Tab S2 Android Development] ashyx:
Without wanting to get into a debate about it I would consider that most root users simply use whatever is suggested without actually having any understanding of the process involved.

While cf-autoroot maybe a one click solution it is not by any means the best way to go at the moment.

CF-AUTOROOT is even by CF's admission lagging behind in updates and is soft bricking devices left right and centre.

Due to CF concentrating on getting SuperSU stable for all devices.

Something which is proving difficult even for the God of root due to the recent increases in security with the latest OS updates and GOOGLES activities lately.

Considering cf-autoroot will always lag in updates behind supersu because of the monumental task it must be to continually update it for each and every time a security update breaks it, it makes sense to stay up to date by flashing SuperSU with TWRP.

Having said this I'm sure you'll be on hand to help out when CF-AUTOROOT potentially boot loops someone's device.
[Galaxy Tab S2 Android Development] ianmacd:
Not true of the S2. This device scarcely ever sees an official Samsung firmware update and I can personally vouch for the latest CF Auto Root still working perfectly with the latest 6.0.1 firmware for the T710. I wouldn't have suggested CF Auto Root if I hadn't been 100% certain of its safety.

It seems you can't tolerate other viewpoints and now desire a pointless argument as a vent for your frustration. You'll have to look elsewhere, I'm afraid, because I'm not interested. Thanks for the offer, though.

I leave it up to the user who asked the original question to decide whether to perform more or less work when rooting his tablet.
[Galaxy Tab S2 Android Development] ashyx:
Great. [emoji6]
[Galaxy Tab S2 Android Development] Csetoue:
Houston, we have a problem.

I used the CF-autoroot for my T810 with the proper files and Odin.

When I boot the device, I got this message on the top of the boot logo "RECOVERY IS NOT SEANDROIND ENFORCING".

What gone wrong? What should I do?
[Galaxy Tab S2 Android Development] ashyx:
Are you running Marshmallow?
[Galaxy Tab S2 Android Development] Csetoue:
Yes, and the CF autoroot that I downloaded is for 6.0.1
[Galaxy Tab S2 Android Development] ashyx:
From where did you download it?
[Galaxy Tab S2 Android Development] Csetoue:
This site.

https://dottech.org/198028/how-to-root-samsung-galaxy-tab-s2-sm-t810-on-android-6-0-1-marshmallow/
[Galaxy Tab S2 Android Development] ashyx:
Well the link is for the official cf_autoroot. You have confirmed exactly my point in post #275.

Maybe someone else in particular should take note. [emoji6]

I would suggest you install the latest Supersu via twrp. You shouldn't have to restore your stock boot.img, just flash supersu v2.78 sr3.

If you still get issues you may have to flash the stock firmware and then twrp + supersu.
[Galaxy Tab S2 Android Development] Csetoue:
OK. I should I had done that.

Now, my tab is stuck on the bootlogo screen with this text on its top.

It doesnt turn off.

Im waiting until the battery is over, to recharge it and try to enter on download mode.
[Galaxy Tab S2 Android Development] ashyx:
You can enter download mode any time, whatever state the device is in. No need to let the battery drain.

Press and hold POWER + HOME +VOL DOWN until your device restarts and download mode appears.
[Galaxy Tab S2 Android Development] Csetoue:
Everything went fine by now. Thanks a lot! :D:D:D

Entered download mode, installed TWRP, and superuser.

No need to unlock bootloader?

Anyone can suggest me a stable and fast rom? Always use my tab to work (heavy PDFs, and some daily multimedia).
[Galaxy Tab S2 Android Development] msprenger:
Hello to you,

You have nothing done wrong… its normal that this appears. I have it too on my Phone. Its a bit annoying but thats it.. It will cause no further prob on your Device. I dont know if there is a Kernel that fix this..

Lg
[Galaxy Tab S2 Android Development] oroboros74:
So if CF-Autoroot isn't the way to go to root (in my case the T810 on Marshmallow), what would you suggest (maybe a link would be great)?
[Galaxy Tab S2 Android Development] Pr0je3ct:
Sorry mistakly posted in the wrong thread ,but got it fixed anyway , CF really apologize for this , love ur work , keep it up, will continue to donate ??
[Galaxy Tab S2 Android Development] bazzanaja:
is there CF autoroot for 719??
[Galaxy Tab S2 Android Development] tsquad:
Any plans for a way to root the newer version of the tab s2? The sm-t818v? I would love to root this bad boy but can only find up to 817.
[Galaxy Tab S2 Android Development] justibasa:
I've been asking about the T818T also. It's the T-Mobile version. I've never heard an answer back. I think that's probably bad news. Kinda sucks that no one will answer the question to be perfectly honest.
[Galaxy Tab S2 Android Development] IngoPan:
Can i use this to root my T810 CPK1 device and/or do i have to install a permissive kernel prior ?
[Galaxy Tab S2 Android Development] rholm:
It looks like the 818 has a snapdragon CPU. You'll need to ask in the 813 thread.

Cheers,

Rich
[Galaxy Tab S2 Android Development] fabe0334:
Which, if any f these will work on T817T
[Galaxy Tab S2 Android Development] andyroidking:
Hmmm, Don't see that model in the title of the post....
[Galaxy Tab S2 Android Development] fabe0334:
Simply asking because sometimes there is cross compatability
[Galaxy Tab S2 Android Development] andyroidking:
I'm sorry too. I've just been seeing so many people posting without even looking. It's not this thread even, just so many others. I'll keep my comments to myself (or on /r/angry...lol).
[Galaxy Tab S2 Android Development] fabe0334:
No harm friend, could you point me toward a root/recovery/rom for t817t? By any chance lol
[Galaxy Tab S2 Android Development] Alpha1BA:
Any compatible for a T813?

Thank You

runnin 7.1.1
[Galaxy Tab S2 Android Development] eax666:
How about S2 T819 ? any news?
[Galaxy Tab S2 Android Development] ccris:
Hi, is there CF autoroot for SM-T719? Thanks!
[Galaxy Tab S2 Android Development] andyroidking:
Only this...https://xdaforums.com/tab-s2/development/twrp-3-0-2-1-galaxy-tab-s22016-sm-t713-t3390627
[Galaxy Tab S2 Android Development] SamRedrum:
Is the CF-autoroot not available for T817V?