yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] sunluck8:
I am new to rooting my Tab s3 so pardon me if any of my questions are redundant. I will be following the directions from post "Newbie-friendly: TWRP and Root for Samsung S3 Tablet". Can someone please confirm the following for me before I root -

1. I am running on the most recent firmware T820XXU2BRL1, do I need to complete process #3 REFLASH ORIGINAL FIRMWARE?

2. After I complete root process will my Tab s3 automatically be set to recognize SD Card as internal storage or will I need to complete another setting or process? This is my main reason to rooting.

3. Second reason is to remove bloatware. Does anyone know of a post advising which bloatware on Tab s3 to remove safely and which ones to leave alone?

4. After completing root process following directions from post "Newbie-friendly: TWRP and Root for Samsung S3 Tablet" has anyone experienced any Tab s3 functions or app not working properly? Is USB-OTG working?
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] jd1639:
1. You don't need to flash the firmware.

2. The external sd card will not be recognized as internal, if you're asking about adaptable storage. I'm not sure you'll ever get that working.

3. You're on your own here.

4. I've had issues with usb-otg working. But others have not. Rorymc928's rom got my otg working.
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] datoy:
Ok I screwed it up and rebooted with OEM on and now I am bricked. Looking for latest SM-t820 stock firmware. I think it is 8.1. I have searched high and low and I have been unable to find.
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] jd1639:
Go to updato.com
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] datoy:
Just what I needed. Thanks.
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] xilacnog:
If all I want is root on stock ROM, do I need to allow System Modifications and wipe+format data?

I don't want to format the tablet, lose adaptable storage or encryption.
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] ashyx:
Nope just install magisk.
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] xilacnog:
Just flash it without allowing system modifications?

Will it void warranty?
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] ashyx:
If you flash it without system modifications you will probably have to reinstall twrp every time you want to boot to it.
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] SirPeterIII:
Uber Noob messing it up here.

SM-T820 Oreo and latest firmware.

Flashed to 3.2.1-1 and now its only boot looping. Resetting to factory setting only give failures messages. 0 storage space and no Sd card.

What to do?
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] jd1639:
Flash the stock firmware with Odin and start over.
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] SirPeterIII:
Will do. But before I mess this up also. Original firmware has a HOME file. Were do I place that in Odin?

And do I need to flash it with the older twrp file if stock firmware worked. Any idear what I did wrong. Again your talking to a noob.
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] jd1639:
Use the home CSC and put it in the csc slot. So you'll use BL, AP, and CSC in Odin. I'm not sure what you did wrong. But after you flash Odin ( make sure repartition is not checked) make sure the device boots. Then boot back into download mode and then in Odin make sure auto reboot and repartition are not checked. Use the TWRP tar in AP. After it does it's thing hold the power, home, and volume up keys until it starts to boot into recovery. Then follow the guide. Formating data is important.
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] SirPeterIII:
Stock formware worked. Installed twrp again. However same problem. 0 space and so no apps to install in recovery. Rebooting makes it boot loop again. Im probably missing a simple step.
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] jd1639:
I'm assuming you're on Oreo. I'd download the TWRP tar again, it's possible you have a bad download. You'll have to flash the stock firmware again with Odin.

Does the device boot properly after you flash the stock firmware?

If yes then get the encryption disabler and magisk on your device, then boot back into download mode.

Flash twrp in AP slot of Odin, don't have auto reboot checked and don't allow it to boot into system. Boot into recovery. Does it get to this step?

Flash disabler in twrp.

Go to wipe in twrp and format data.

Go back to install in twrp and install the magisk zip. I'm not sure what version the link in this thread is but 18.1 is the latest zip and 7.0.0 is the latest apk.

Then boot to system.
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] SirPeterIII:
Oreo user here. Downloaded a fresh twrp_3.2.1-1_T820_28518 (changed the .img to correct format with the tool). Flashed it back to stock and its booting correctly and working.

Transferred the encryption disabled and magisk zips from laptop to the tab. Booted back into download mode.

Flashed the twrp with only f. reset time. Booted into recovery.

Going to install button in twrp but cant install any apps or files since it says 0 mb internal storage. Don't have an external card.

Stuck at the same point again :(
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] ashyx:
You need an sdcard.

Alternatively you can push the files to /cache using ADB.

Until you've installed all the patches the internal storage will remain 0mb.

You need to complete all steps, there are no shortcuts.
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] darkarchon72:
Pc

Do I need a pc for this root to work?
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] jd1639:
Have you ever used Odin? Yes, you need a pc. It might be best to learn how to use Odin before you try this. You may need it for more than twrp.
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] Allstar007:
hello I have a problem in TWRP can no longer integrate the data partition after a restart. There stands then 0MB with internal memory. I have loaded the newest version here, so slowly I do not know what to do next.

I need your help, please. :(
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] carlo67:
I flashed the Oreo on the galaxy tab 3s SM-T825 and I followed information to root it and it went ok but the Magisk 18.1didn't installed

what I should do now
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] ashyx:
Install magisk manager apk.
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] carlo67:
thank you very much, it is working well
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] Chevalier1000:
Hellow! Can exist root for samsung sm-t820 android 8 T820XXU1BRE2. I flash TWRP using odin. Flash dmverity_patched_boot, forced encryption_disabler and Magisk-v18.1. All flashed successfully but root checker write - "Sorry! Root access is not property installet on this device" . May be mistake in version of my t820 (T820XXU1BRE2) and dmverity_patched_boot (file T820XXU1BRE2_dmverity_patched_boot)?
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] ashyx:
Install the Magisk manager apk.
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] Chevalier1000:
Ok! I install Magisk. Root works.
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] nex86:
Do I really need to install this encryption patch?

I only want to install Magisk and don't want to wipe my tablet since I spent days on setting it up.

And if I have to, can I backup my stuff with TWRP and then restore it after patching?

So from my understanding its only needed if I want to write to data right?

But since root only goes into system I don't need it?
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] cartman56:
Can t825c flash this recovery
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] diehard2013:
sm-t820 panicked this afternoon.

a reboot after entering twrp recovery mode brought it back.

Everything is ok now.

I'm checking logs to find out what happened.

hw_binder thread.

note: yes, the display is cracked from an old incident in which gravity and concrete are to blame.

_______

Ashyx,

What do you mean by running the eng boot from the combo firmware?

I have installed what your instructions set.

But I do have instaelled modules such as bash-androoId, viper-android, gnu core-utils, etc.
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] ashyx:
UPLOAD MODE is a feature of the factory engineering binary when a kernel panic happens. I've never seen or heard of it happening with a stock boot image.

Stock kernel would just reboot with a kernel panic.
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] Reechings:
Did I need to factory reset before trying to install TWRP? Can't mount data so can't flash disable dm verity zip and got bootloop now.
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] whoosename:
Have a look in OP:
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] davidk21770:
Along with reading the above post from whosename - remember that the files that you need to flash can be on external sd or be downloaded from usb from your computer after you format data.
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] Reechings:
Yeah I found the button that let me format data finally and all good after that, thanks.
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] jesbu:
Hi please will this root work for sm-t827v Verizon?

Thanks
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] ivanox1972:
Off topic [MENTION=4899305]ashyx[/MENTION]

Hi, boss. I know you from past as twrp King. I bought tab s5e recently, no any support, of course no any development also. Is it possible for you to make twrp for it?

Than I can install magisk probably... Thanks
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] diehard2013:
comrades,

I accidentally the 'OEM unlock' option under Developer Options.

If I enable OEM unlock again, will the tablet be reset?

Everything is in working order: magisks, root, etc....

thanks.
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] buddybin:
Sorry can i ask about how to back to stock firmware (SM-T825Y)

now i'm in stock rom+ TWRP recovery+magisk (Oreo)

I need to revert back to stock

I try to flash Stock firmware via odin. It' said "fail",, Then i try to format data to mount data partition, It's look pretty worked but !! Odin auto close

Any suggestion ?

Thank you
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] jawalexander:
secure folder

after rooting, the secure folder works or not?:o
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] diehard2013:
I believe it should not because Knox was knocked.

note: would magiskhide make a difference here?
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] jawalexander:
tangled to choose

I am tangled to choose between rooting and the security folder

and more,

struggling with the choice between waiting for tab s5 or buying tab s4 now.

what makes me despondent is that no bixby on tab s4.

hope for a more powerful tab s5
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] OPO13R:
The S5e is weaker in both cpu and gpu, everyone should know this by now. Check it on gsmarena.com, if you wanted detailed information.
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] diehard2013:
Suggestion: tab s4 now and root it.

It' s very fast.

Secure folder is a good feature, but I prefer root because of the many advantages it provides.
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] diehard2013:
......

has anyone applied the May secu/rity update?

if using ODIN then there is no need to reset the tablet, right
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] diehard2013:
No one updated?
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] diehard2013:
with a modified bootloader, will ODIN reject applying updates to the device?
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] davidk21770:
I have had no issues, but I typically don't use odin - I use either twrp or flashify.

And, I updated to a tweaked rom in may and am finding it stable.
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] haygij:
I'm on an unrooted 8.0.0 device.

Will flashing TWRP 3.2.1-1 via ODIN and flashing a custom rom or just Magisk.zip root my tablet?

Thank you people :)
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] whoosename:
TWRP and magisk are enough.
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] haygij:
Thank you very much!

Do I flash Tabs3_oreo_forced encryption_disabler.zip right after I flashed Magisk.zip?

Do I also need to disable dm-verity or the encryption_disabler does both?

From what I understood, I must flash it once I flashed the twrp, on first boot after ODIN is finished flashing, right?
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] whoosename:
Follow OP:

After flashing TWRP:
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] Theone@57:
Can you explain the steps in using flashify?

Thanks
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] Reneval:
Hi,

got a updated t-820 with the latest stockfirmware (BSD1). TWRP is latest, too.

With Magisk 19.x the tab stucks at samsung logo when its booting. With Magisk 18.1 everything works fine, so i use this one.

Mabe a magisk problem?

Thanks for answers!
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] jd1639:
Using magisk 19.3 on my t-820 without a problem. Use magisk uninstaller then install the 19.3 zip with twrp.
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] Reneval:
yes, you're right. complete uninstall and reinstall with magisk 19.3

no more boot-errors so far. i will observe that.

i had tried this before, maybe with the wrong magisk uninstaller.
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] drt054:
Deleted
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] jerome_m:
TWRP is now on version 3.2.3-0 for several devices. All I can find for the S3 here is 3.2.1-1. Is there a newer version I missed?
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] ashyx:
Latest version on TWRP Web page is actually 3.3.1.0.

What seems not to be working?
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] jerome_m:
The present version of twrp does not appear to support OTG.
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] whoosename:
The search function will lead you to page 176. From there onwards you'll find a solution.
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] jerome_m:
I have read pages 176-177. They seem to discuss a different problem with USB-OTG, namely that the normal OS would not support USB-OTG after TRW was installed. The reason was, if I understood correctly, that the OS kernel had been exchanged on the boot partition. The fix on page 177 concerns the boot partition.

TWRP sits in the recovery partition and includes its own kernel. TWRP normally supports USB-OTG, to allow firmware updates to be loaded from an USB stick.

The present version of TWRP will not mount an USB stick. This is a problem with TWRP which will not be changed by any fix on the boot partition, as that partition is not active when TWRP is loaded.
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] skippy1331:
Thanks [MENTION=4899305]ashyx[/MENTION]

I did run into 2 problems, after flashing TWRP onto the device I was then trying to get twrp to load the encryption patch but the device was showing 0mb storage on any partition.

tried to reboot but of course that puts it into bootlooping.

but somehow after a few bootloops and then i put back into TWRP it found storage and so I loaded both the patch and magisk.

I loaded 19.3 magisk but as anther user on here found it bootlooped.

I let it do this 3 times and then it just worked fine with no further inputs.

So anyhow we got there after a full hour of figuring it out.

I legitimately hate this tablet as im trying to see if a different rom will help. so this is my first time rooting a device. :)
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] booyakasha22:
Does this work with the latest firmware and U3 binary?

The answer is YES -- I just rooted. I am running into graphics problems though games are playing worse on lower settings than my S2 (pubg)

Ive dropped resolution and settings still really bad. I have been reading maybe thermal CPU throttling looking into it, that makes sense maybe ill try and underclock CPU and see what happens. I am running Rory's Rom and some other performance tweaks and this thing FLYS

EDIT -- Vulcan 7 runs like garbage. Open Gl 2.0 and this thing FLYS.
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] dagrim1:
Do you mean it works on android 9.0 Pie?
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] Nick1Man:
Why there is no official TWRP for T825 after 2 years?
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] ashyx:
Who cares?:rolleyes:
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] Nick1Man:
Those who understand..........
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] ashyx:
Understand what exactly? :confused:
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] ISS81:
Hi [MENTION=4899305]ashyx[/MENTION], are there plans to twrp on android pie?
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] ashyx:
The current version doesn't work on Pie?
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] rorymc928:
Yes,it works on pie, as does the encryption disabler,:)
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] LedgendaryEpics:
It works.

---------- Post added at 06:13 PM ---------- Previous post was at 05:18 PM ----------

It works, I got proof!

[IMG="#1"]

https://drive.google.com/file/d/1iUos5sIT8kQX1dOkOaeWdsICf6MjlDBj/view

[IMG="#2]

[url]https://drive.google.com/file/d/1FH2KVKRLZYG-xlq9VeQ8dFwHhWM9iXBU/view[/url]

[IMG="#3"]

https://drive.google.com/file/d/1WrwCN8S34Mgl85ioD7tydSTM5TXGguQO/view

[IMG="#4"]

https://drive.google.com/file/d/1fe1BGYOdGZmxYffGBDWPwhH2MKA7tCWs/view

I had to use both ashyx encryption disabler, plus the dm-verity disabler online; I have successfully made a backup of my 9.0 pie stock SM-T820 firmware using TWRP unadulterated(Just download the magisk manager online, and you should be ready to roll), and if anybody can help me create a drive download link of it, it should be better than waiting hours to download the software off some third party site.

Also, new to this site, if anybody can help me post actual images instead of links to the images, that would be nice too.

Also, Also, sorry for so many edits, but the images that I've linked are all split screen images.

Sorry, last edit - also hit thanks if this post helps!

Took me a while to figure out how not to trip knox with the new kg(knox guard) state trip, if anybody still needs help with the seven day lockout here's this video to help you guys out ---> https://www.youtube.com/watch?v=o0T-CR-KpfM
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] Stogie87:
I can not flash latest twrp via odin on Pie. Is there any workaround or needs this an update?
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] ISS81:
Yes, it works perfect! But as the partner [MENTION=9236238]LedgendaryEpics[/MENTION] says, apart from flashing your encryption disabler, you must also flash the dm-verity disabler online.
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] drharder:
How did you do the dm-verity disabler online?
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] LedgendaryEpics:
You have to flash right after ashyx's encryption disabler.

---------- Post added at 05:15 PM ---------- Previous post was at 05:14 PM ----------

Make sure you did not trip knox kg guard. It should say "checking" when flashing twrp.
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] drharder:
Sorry, should have asked where did you find the dm-verity disabler online
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] ashyx:
For Android 9 you need both the patches below:

RMM V3 bypass

https://xdaforums.com/samsung-a-series-2017/how-to/guide-root-install-twrp-samsung-t3747535/page63

Dmverity and encryption patch:

https://androidfilehost.com/?fid=6006931924117938708
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] drharder:
Awesome, thanks !!!!
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] Soccerdad91016:
Possibly the wrong thread, but it's TWRP related. I install TWRP fine on Android 9 but when I attempt to install Magisk it's not working as expected. The Magisk zip installs fine in TWRP, success messages etc.

However, when I reboot the device I don't have the Magisk icon and root checker says the device is not rooted.

Installing Magisk 19.3 via TWRP 3.2.1 on Samsung Galaxy Tab S3 (SM-T820).

This was all working fine before I did a clean install of the Android 9 ROM via Odin

Thoughts?
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] rorymc928:
I've found with some apps the request for super user doesn't seem to process, the root check app is possibly being denied, but if you go to the magisk manager app, look under super user they're their with the switch off, so just switch it on there. Occasionally they won't trigger the request, so you can temporarily select "always grant" for super user in the settings section of the magisk app. Till it gives the app access then put it to something safer, "request" afterwards.

---------- Post added at 01:39 AM ---------- Previous post was at 01:37 AM ----------

Ps. If there's no magisk app try manually downloading it and installing it from the magisk thread
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] Soccerdad91016:
Thanks for the hint, I manually installed the Magisk Manager APK, and voila! Already showed that Magisk was installed too.
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] corumuk:
So just to check, from a stock pie device, we follow the steps in the first post and flash

abs3_oreo_forced encryption_disabler.zip

RMM V3 bypass

Dmverity and encryption patch

or just

RMM V3 bypass

Dmverity and encryption patch

An update of the OP for Pie would be great for those of us with as yet untouched devices.

Thanks.
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] ashyx:
Just the last 2 patches only. No need for the oreo encryption patch.
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] Duvel999:
I installed twrp & rooted pie the same way as oreo.

No problems.
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] diehard2013:
_________________________________

sm-t820

oreo

build ID: R16NW.T820XXU2BRL1

kernel 3.18.71-14977309

magisk 19.4

________________________________

I'd like to update to Pie and I don't mind losing data, so the any method is ok with me.

I just downloaded T820XXU3CSH9_T820XAC3CSH2_XAC.zip.

1) do I have to unroot or uninstall magisk first?

2) can I go straight to odin and reflash?

Thank you.
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] ashyx:
You won't lose data or need to uninstall anything.
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] diehard2013:
I just reaIized I don't have a PC with windows.

can I flash Pie with TWRP or using adb from a PC running Linux?

thank you very much!
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] ashyx:
No.

You could try a Windows VM.
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] auspigdaddy:
Boot loop - my screw up.

Deleted - installed stock from sammobile
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] diehard2013:
If i uninstall magisk, the tab s3 becomes unrooted again, right?

in that case OTA would kick in with pie.
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] ashyx:
Of course.
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] diehard2013:
after successfully updating tab s3 to Pie, I can finally root it back with MagisK.

Thanks!
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] klaberte:
getting the dreaded "OOPS! no mirrors found." Can anyone with the latest T820 TWRP file post a temporary mirror?
[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] diehard2013:
I uninstalled Magisk and rebooted. It did give two options, the first one offering to restore images. I wasn't sure so I chose option 2.

After rebooting I entered TWRP and did a factory reset. It started to boot loop.

I was able to boot into recovery mode (TWRP) again. If I install Magisk, will it restore the the previous setup?

Can I flash Pie with Odin?

There's no data recovery needed here, to any option is good.

thanks again.