yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Chrisjjj:
So I'm on Android Version 8.1.0 and when I follow the guide I get 'Only official released binaries are allowed to be flashed' every time I try to flash TWRP through ODIN. From what I seem to have read we need to wait for a compatible TWRP for 8.1.0. Is this correct?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Talich52:
If you just flashed TWRP and reboot the machine, then there should be such a message,since the stock kernel has protection,this protection is disabled when you install Magisk.zip.

you can not install only a custom recovery, you also need to root the device by installing Magisk.zip and it should be done immediately, without restarting the device

P.S. and we should start with on developer mode and it has option Unlock OEM.

and TWRP to choose for the model T380 or T385
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Chrisjjj:
No TWRP is not flashing as I stated.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] ashyx:
Check your RMM status.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Talich52:
In the Downloading mode on the display of the device what is written? Is there a line RMM Status: Prenormal? If there is such a line, then do not flash TWRP :(
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Chrisjjj:
Thanks for that I didn't know how to check my RMM status. Yes it does say Prenormal. What does this mean?

Also is it possible to root without TWRP?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Talich52:
what model Do you have? for the model T380 is not possible to downgrade the firmware to 7.1.1 and status Prenormal clean :( .

For the model T385 is T385DDU1ARH1 firmware version 7.1.1 ,but with the 2 version of the bootloader and it can be installed to achieve the disappearance Prenormal and updated back to 8.1.0

Root access from the Magisk you can get an alternative way,through the kernel patch at Magisk Manager. However, the Prenormal status prohibits the installation of any unofficial (custom) file :(
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Chrisjjj:
I have T385. So if I flash stock 7.1.1 it will remove this status? Then do I do OTA Update or flash 8.1 manualy?

Also is there info somewhere for the kernel patch at Magisk Manager? Not to worried about custom roms for this tablet.

Thank you for this information.

Update: downloaded my boot.img and patched it will try and flash it with ODIN tomorrow morning.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Talich52:
First you need to return to firmware 7.1.1, as described here:

https://xdaforums.com/galaxy-tab-a/...10-02-2018-t3747564/post78578657#post78578657

Reset to factory settings through the device Settings.

then either wait 7 days (168 hours), or vary the time a month ago,month ahead, checking the update each time, but refusing it

and reboot.

Then we turn on time auto-detection, reboot, check for updates.

Status Prenormal will disappear when the OEM Unlock option appears in the developer’s section.

We turn on OEM Unblocking, enter Downloading mode.

If there is no line RMM Status: Prenormal, only then you can flash through ODIN on firmwares 8.1.0

Install TWRP and get Root rights

Root rights can be obtained by flashing the patched kernel

P.S. in the current state of Prenormal installation of custom recovery and the kernel (it is patched) is prohibited
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Chrisjjj:
Thank you for that. What a nightmare, damn you Samsung.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Chrisjjj:
Been playing with this having 0 success.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Talich52:
Success will be, if you do this:

Make a reset from the device settings.

Disable Auto Download Updates.

Disable auto-detection of time and set the date a month ago, check the update and reboot the device. On the offer to upgrade choose Later.

Change the date to a month in advance, check the update, restart the device.

Enable time detection, check update, reboot device ...

Along the way, look in the developer’s section for the appearance of the OEM Unlock option.

If the OEM Unlock does not appear, do the above described again.

As soon as the OEM item appeared,turn on the option OEM and turn off the device and enter the Downloading mode.

If the line RMM Status: Prenormal is not, then flash firmware 8.1.0.

f it does not work today, it will work tomorrow, 7 days will not have to wait ...

Good luck!
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Talich52:
ashyx,

Do not understand anything! (c)

I install an update for my TabA LTE T385 device through recovery twrp_3.2.3-1_sm-t385_oo_5119 , I get error 7.

For some reason, recovery believes that I have a Wi-Fi model ;)
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Chrisjjj:
FFS now /data will not mount in TWRP. Spent countless hours on this now and it is doing my head in.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Talich52:
Are you already on firmware 8.1.0 and installed TWRP?

The data will be mounted if you make format data (not wipe data),

and before that you need to install a patch to disable memory encryption:

https://xdaforums.com/galaxy-tab-a/...10-02-2018-t3747564/post78626163#post78626163

P.S. The current version of TWRP does not work with the exFat format, in which 64GB and more cards are formatted by default.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] ashyx:
What are you attempting to install?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Talich52:
This is an OTA update for the T385 model from firmware RI8 to SA2 for India and Bangladesh (INS & BNG)

P.S. Installed an update from stock recovery ...
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] ashyx:
As far as I know it's not possible to install stock OTA updates with TWRP. You need stock recovery for that.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Talich52:
Actually, I did, but the TWRP error surprised me :)
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] ashyx:
OK. I will address the device model error however.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Chrisjjj:
Finally seems like everything is working OK. The process has been traumatic to say the least. One road block after another and the whole time jumping to get OEM unlock working is unreliable and almost unbelievable. Thanks to everyone who help this happen and special thanks to Talich for walking me through it. Would have given up without your confident advice.:good:
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] geronracing:
Hey everyone- thanks for all the knowledge here. I feel like I'm on the cusp of getting this thing rooted, however I can't get it to be successful.

I am using the 2017 Tab-A with the latest Android 8.11

The steps I followed are:

Put Magisk 18.1, RMM bypass, Tab_A_Oreo_forced+encryption on a Fat32 8Gb SD card

enable developer mode/ OEM unlock/ USB debug

Reboot into download mode

Use odin to install TWRP

Reboot into TWRP

flash the encryption file

format the device

install magisk from sd card

install RMM

reboot.

The device restarts and goes into setup of android. However I have to install magisk manager, and it tells me there is no magisk installed and that there is no root.

Any ideas?

EDIT: WOW- looks like I am an idiot, all I had to do was reboot the device after installing magisk manager- Looks like I now have root access.

Anyway- to make it easy for people at least on my device that is the order of installation that worked for me!
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Talich52:
What model do you have? T380 or T385?

RMM patch does not work on our device and is not needed for firmware 8.1.0, this option RMM Status is disabled Samsung on firmware 8.1.0.

Already wrote and I will say it again - after the initial installation Magisk requires an additional reboot to see Root-rights
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] geronracing:
T380

Hard to get all the processes straight by skimming the thread. Thanks for all the help!
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] CrimsonKnight:
Bought a T380 refurbished from eBay and did a factory reset and enabled dev options after I received it.

It's been running for a week now and no OEM unlock option has appeared? Any advice?

Should I have flashed the stock firmware from Odin instead of doing a factory reset from the device itself?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Talich52:
What version of android firmware installed?

If firmware 7.1.1 is installed, then do not rush to upgrade to 8.1.0

Is the RMM Status: Prenormal row in the Downloading mode?

if there is current 8.1.0 firmware, then you are very unlucky :(
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] CrimsonKnight:
Still 7.1.1. I'll get back into download mode when I get home and see what RMM status says but I'm pretty sure it was normal. The only strange thing I see is if I go to settings->tablet info I see something about outstanding device payments.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Talich52:
Do not install firmware 8.1.0 before determining the status of the device. It makes sense to install firmware 7.1.1 of your region with CSC_ (not HOME_CSC), that is, with data reset and additionally reset from the settings menu
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] CrimsonKnight:
I'm US so you're saying I should go grab the XAR 7.1.1 version of my current firmware from somewhere like sammobile and flash with Odin using the CSC_ (not HOME) so that it's a full wipe.

After that is done do a factory reset from within Android?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Talich52:
Yes exactly!

Download the firmware from here: https://updato.com/firmware-archive-select-model?record=61A7FC21281811E89F15FA163EE8F90B

Flashing the specified firmware and after the pre-setting, make a reset from the settings menu.

Disable update autoload and refuse from update, choose Later.

Then either just wait 7 days (168 hours), or vary the time, check for updates, reboot the device ...

You need to enter the developer mode and wait for the appearance of the item Unlock OEM and select it :)

P.S. Is there no RMM Status line in Downloading mode?

P.P.S. Only after enabling the OEM Unlock option and the absence of the RMM Status line can the device be updated to firmware 8.1.0
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] CrimsonKnight:
Wow the download is going to take 2 days it's so slow. The RMM status in DL mode says Normal.

How do I vary the time to skip the 7 day wait?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Talich52:
You can download it from here:

https://samfrew.com/ru/download/GALAXY__Tab__A__/53w8/XAR/T380DXU1ARB3/T380XAR1ARB3/

I posted the firmware on Google.Disc: https://drive.google.com/open?id=1Vb9yP7zxCxxHQz7wpGHg9FYd7oDVukkf

He described how to speed up the process:

https://xdaforums.com/showpost.php?p=79066033&postcount=433

P.S. Specify - is the line RMM Status: Normal or Prenormal?

Everything we do will help remove RMM Status: Prenormal.

line RMM Status: Normal appears when an unpaid credit for the device and the device is blocked by S / N & IMEI :(

I do not know the solution ...

I think you need to solve the problem with the seller who sold the device with an unpaid loan...
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] CrimsonKnight:
RMM status is definitely normal. I'm flashing the FW now. We'll see how it goes.

---------- Post added at 07:20 PM ---------- Previous post was at 07:07 PM ----------

Ok the flash worked but just for the hell of it I tried to flash TWRP and I expected the "only official firmwares" error but I actually got "blocked due to remaining installment balance". Does this mean I'm out of luck until whoever bought the thing originally finishes paying it off?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Talich52:
Return the unit to the seller, if possible.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Matty1993:
The person whom you have bought it off has fraudulently sold you the device that lock means it has been shut down due to non payment, the firmware installed to the device is different from normal FW it has been modified by a 3rd party Vendor to incorporate theyre non payment lock,

What it actaully does after the non payment period is over and its still not been paid they iniate the lock from theyre servers in return this lock on the device is activated and put a lock on it much like an FRP lock the bootloader shutdown from all 3rd party and even stock samsung FW not containing their bootloader key,

If i were you i would file a complaint with Ebay & you will get your money back, have you tried flashing a combination FW to the device though ?? ,

Not saying i endorse anything of that nature however ive been stung like you far to many times,

A combination FW is a factory HW testing custom but official binary designed by samsung for use with the factory technicians, Flashing a combination FW should not trigger any of the bootloader locks due to the boot.img being official, if you can get it to flash it should completely wipe the entire EMMC chip complely if not do a factory reset in combination FW settings menu also check the developer options for oem unlock, ive had a few 8.0 + samsung devices that have been prenormal no amount of stock flashing would do anything to change it i flashed combination roms to them and whala in dev options was the OEM unlocking button havent comfirmed this on the T380s though i sold mine lol didnt like the feel of it im getting a 10" but it in theory should also work as they are Samsung, :D enjoy your day/ night everyone
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Talich52:
Combination firmware for model T380 with firmware 7.1.1 can be downloaded from here:

https://boxwares.net/b6cdbae8c5b9b4...NATION_OLB_FA70_T380DXU1AQK1_BoxWares.tar.zip
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Chrisjjj:
WOW never heard of this issue before. That really sucks.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] CrimsonKnight:
Yeah I contacted the seller and they didn't give me any problems with starting a return. It's a big eBay power seller with a 30 day return policy so oh well. I'll buy another one.

Maybe I'll try this I have some time before the 30 day return period expires.

---------- Post added at 09:30 AM ---------- Previous post was at 09:10 AM ----------

Not that I don't trust you, but how do I know this is legit and won't brick my tablet? Does Odin do any sort of check before allowing it be flashed?

The filename contains the string T380DXU1AQK1. Mine is currently running T380DXU1ARB3, is this combination FW compatible?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Talich52:
A modern device from Samsung cannot be turned into a brick by flashing, since the bootloader will not allow flashing the same bootloader from another model or a PIT file from another model or a modified ...

There is protection in ODIN ...

Current firmware T380DXU1ARB3, firmware T380DXU1AQK1 is offered, the same version of android 7.1.1 (letter A) and the same version of the bootloader - number 1 ,

Accordingly, the firmware T380DXU1AQK1 will be installed, but I do not know whether this will give a solution to the blocking issue,I did not have to solve the issue of blocking with the non-payment of the loan.

Can prompts user Matty1993

Anyway, then you can flash back T380DXU1ARB3
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Matty1993:
Combination firmwares provided by shell.boxwares are 100% safe to use i use them myself as i run a phone repair shop :) anywhere else though i wouldnt trust it

When you flash it the UI will be very different as the firmware is for factory technicians but it has privledged permissions over what a normal firmware would for exapmle, try seeing if oem unlock is available in developer options if it is enable it if its not skip it now factory reset the device through the settings menu to see if it wont get rid of the payment lock as seller will be replacing or refunding you anyway so nothing wrong with trying to remove it

BUT if you are going to flash it you will need a copy of stock firmware to reflash after youve used the factory binary to restore the original OS to it you can download for free at sammobile.com you need to register an account but its free & downloads are free also, select your country then select a firmware that has "U1" as you are 7.1.2 DO NOT flash "U2" 8.1 firmware stay on 7.1.2 trust me youll have nothing but problems on 8.1

Will factory binary trip the warranty fuse =

No the binary is samsung official & will not blow your knox security efuse

If you need any more info just holla
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] CrimsonKnight:
Thanks, but it didn't work. I flashed the combo FW but didn't see OEM Unlock in the options. I went to settings and did a factory reset. Once it booted after that OEM Unlock still wasn't there. I re-flashed the original FW.

Somehow it remembered it was linked to a Google account and made me verify myself before it would fully boot up, and in settings -> about tablet -> status underneath "Device Status: Official" I can still see "Installment payments: Outstanding".

I think i'm just going to wipe it and return it and buy another one from a different seller. Thanks for your help with this.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] zfk110:
WTF going with Samsung!!!!!, I just bought this t380 with Nougat running tablet and now I can't turn on OEM unlock since its not there, this has so many bloatware and junk running on it I couldn't believe it also I got RMM: is prenormal, its same nightmare I had with S8+ after three months I couldn't get OEM unlock on that international S8+
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] rtfm1777:
Don't Panic - This Works

Thanks Acogu, your little boiled down procedure here really helped me out. Thought I was following OP directions but somehow got myself into a bootloop. I found this right before I really started to panic

So I took a deep breath, went back to stock, and then navigated through your 6 lines here. Apparent success with my V8.1.0 T385M. Just looking for basic root and so far AdAway is happy. Total Commander not so much so I'm looking for a new file manager but I'm happy the box is rooted. Thanks again

rtfm1777
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Talich52:
The method is not perfect, but it works ... sometimes you have to clean the device clean again and reset the settings again ...

In no case do not upgrade the device to 8.1.0, since then RMM Status: Prenormal is not removed and rollback to 7.1.1 is impossible. :(
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] zfk110:
to disable forced encryption and mount internal storage (/DATA):

1. Boot to Twrp

2. Format the Data partition (NOT WIPE) using the FORMAT DATA button under Wipe options.

(Note: This will wipe the internal storage)

3. Check /DATA is mountable.

4. Install Magisk

OREO ONLY:

5. Flash the RMM bypass zip

https://xdaforums.com/att...3&d=1524258795

6. Reboot

I follow these steps disable forced encryption, and it works, but when I go back to TWRP encryption comes back again? how to fully disable forced encryption I'm on Oreo
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] ashyx:
Install the zip below:

https://xdaforums.com/attachment.php?attachmentid=4682858&d=1547011951
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Acogu:
Glad it worked for you mate!
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] CrimsonKnight:
So I got another one of these, waited the week for OEM Unlock to show up, then followed the OP.

I got TWRP installed and booted, wiped data, installed Magisk, wiped cache/dalvik, and rebooted.

Once it was up I installed Magisk Manager and it said that Magisk wasn't installed?!

I tried to boot into TWRP again but the thing wouldn't boot at all, not to recov. not normal boot, nothing. I kept getting "only official boot" or some error.

Went back to download mode and I'm in Prenormal now......Reflashed the official FW to get it to boot at least, but am I out of luck for another week?

What happened to my Magisk install? It disappeared? I'm on 7.1.1 so I didn't use the RMM zip in OP because it was labeled for Oreo.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Talich52:
First do it

and after applying Magisk, replace the file build.prop:

Copy file /system/build.prop to computer,open the build.prop file in a text editor and fix the line ro.security.vaultkeeper.feature = 1 to ro.security.vaultkeeper.feature = 0

it should do the RMM patch,but it is on our model is not working :(

after applying Magisk.zip ,copy the build file.prop using TWRP in the system section and set the rights 0644, only then you can do a reboot into the system.

P.S. This only applies to 7.1.1 firmwares ,on 8.1.0 firmwares there is no vaultkeeper protection and edit the file build.prop no required.

P.P.S. Remember - firmware 8.1.0 go only when there are no rows RMM Status: Prenormal because it's not clean at firmware 8.1.0
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] CrimsonKnight:
Thanks. I guess I'll wait a week and try this. Why isn't this information in the OP?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Talich52:
What is the current firmware? You can extract the build.prop file from the firmware and patch it, and then when you receive Root rights, copy it from the memory card to the / system partition and set the rights to 0644 by the TWRP File Manager.

This has to be done manually since the RMM patch does not work.

P.S. You can not wait for 7 days,and do so:

https://xdaforums.com/galaxy-tab-a/...10-02-2018-t3747564/post79066033#post79066033
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] DessertArbiter:
Its not working, right after I install TWRP when I reboot to recovery it shows the "Samsung Galaxy Tab A" logo but still says "download mode !!" in the top left

Even if I just reboot with power + volume down it still says "download mode !!" wtf im stuck

Edit: nvm im an idiot i was flashing the one for t385 lol i have t380
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] CaptainChris2018:
TWRP keeps failing to Install.

Device: T380 (Android Oreo)

PC: Windows 10 Build 1809

I am Using the Version of TWRP for the Tab A T380

I am Using The USB-C cable that comes with the Tab A T380

I Have:

Turned on OEM Unlock (I had my Tab A T380 ever since Early December 2018)

Switched USB ports

got a new copy of TWRP

got an old version of Odin

Yet, every time i try to flash twrp, it is Fail! on Odin, and on the Tab A, it Says "Only official images can be flashed"

I need some help.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Talich52:
Enter Downloading firmware mode,

Is there a RMM Status: Prenormal line on the display?

if the line is present and the firmware version is 8.1.0, then on this version the android RMM Status cannot be removed, and a rollback to 7.1.1 for the T380 model is impossible :(
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] CaptainChris2018:
It just says Only Official released binaries are allowed to be flashed., but i see a blank status bar that is not moving on the bottom of the screen
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Talich52:
and yet, what is written on the top of the device in Downloading mode?

or attach a photo of the screen ...

P.S. You do not need to flash anything, I'm interested in the picture of the display in the Downloading mode
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] CaptainChris2018:
Here You Go

https://postimg.cc/3dmyMVsK