yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] ZeroZorro:
Just follow the OP to the letter until you get to the part installing Magisk, you don't need that to get root. Read carefully from first sentence so you don't miss any step or warning. Good luck,,,
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] numbb:
Yes. For this.

Samsung SM-T280	SM-T280	XEF	T280XXU0AQA4	Android	5.1.1	18.01.2017	10429622
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] ashyx:
I'll see what I can do, can you post up the boot image?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] numbb:
Sure!

http://www47.zippyshare.com/v/Kt4cL43a/file.html
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] AgentJz:
Okay cool cool root worked, looks like I had a bad boot image before, thanks...does this ROM fix the WiFi issues? Or I'll have to make some changes to my router if this can't be fixed by Rom. Maybe I should just install this rom anyways because I'm sure it's probably a lot more lightweight
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] _mone:
Hi [MENTION=4899305]ashyx[/MENTION]

Do you mind to share your device tree and kernel for this build? I can't see see it in your github.

I've just bought a t280 and starting to work on it.. I've just started with the kernel: android_kernel_samsung_gtexswifi and I would love to have some reference to guide me through.

Anyway, thanks for your work on this device. I've flashed your twrp build and kernel as soon as I got home with the t280 from the shop.

Hopefully you and [MENTION=649003]jedld[/MENTION] will join me to bring some aosp on this device (I can't stand samsung's touchwiz).

Regards,

_mone

----------------------------------

EDIT:

This: android_device_samsung_gtexswifi is my starting minimal repo for building twrp for the T280. Any help is more than welcome! ;)
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] ashyx:
I don't have any broadband at the moment, so unable to upload right now.

Your device tree seems fine for compiling twrp, but not sure why you need to create another?

What direction are you taking the kernel, is it for an aosp build?

Samsungs current source won't boot the stock rom.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] _mone:
For many reasons.. to learn; make sure that the kernel works; keep my recovery up to date.. if sharing another build bothers you, no worries, I won't.. anyway it doesn't boot yet.

For twrp and a future lineageos build.

I thought that the best way was starting with the kernel, then trying it out w/ twrp builds and then starting to work on a lineageos tree.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] ashyx:
No that's fine, it's open source so anybody can do what they want.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] _mone:
Did you apply any patches to be able to build a recovery that boots up?

No matter what I try but my recovery doesn't boot.

Any hint?

Should I do what you've done here? If yes, could you please explain it?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] ashyx:
Yes you will need to follow the info in that thread to patch the header and footer. You will need to create a sha256 checksum from the payload and then hex edit the header and footer with the new value. Plus you will need to convert the payload size in bytes to hex and patch the header and footer with that too.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Sidebandit:
Many thanks all working :)

Xposed framework use wanam and not the others from main thread

https://xdaforums.com/xposed/unofficial-xposed-samsung-lollipop-t3180960
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] vayavalla:
Hi! Do you have any info about your progress with T-280?

Enviado desde mi Moto G 2014 mediante Tapatalk
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] zenful:
Just wanted to thank the OP and any contributors for the time and effort put into the development for this device ♡

WI'll happily leave feedback when possible.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] staygreen420:
i flashed trwp fine but instead of magisk v7 i tried flashing v11.1 (latest) and got stuck on the boot screen, is v7 still valid (does it pass safety net)

edit:

i forgot to falsh boot img. can i use v7img with v11.1 magisk? cant seem to find a v11.1 boot img for the t280
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] ashyx:
No, the boot image has to compiled with magisk v11.1 support.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] staygreen420:
Been searching all fourms and can't seem to find a boot.img for 11.1 or a custom kernal for sm-t280. Do you know how I can get this to work. Magisk v7 wasn't passing
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] ashyx:
I have to build it.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] staygreen420:
Oh. I hope it wouldn't be too hard for you to do. Would be much appreciated:) do you have a donate page?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] ashyx:
Open the page in the browser and it should be on there the left.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Planktron:
Has this been tested on the AQA4 build?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] andrescm:
Pardon my ignorance but this device is new to me. How do I make TWRP recovery to stay?. It loads fine right after flashing but reverts to stock on next reboot.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] ashyx:
Make sure you 'allow modifications to system' when booting to twrp.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] sej1971:
Sorry for this newie question here but will following this method to root the T280 allow me to move downloaded apps to the external SD Card? I bought the T280 for my son but as I'm sure everyone here knows already... it's way too small to hold/install all his games :( I've been reading a ton about rooting this device for the last few days and I keep coming across the odd post where someone mentions SD card issues but they don't elaborate on it... like this one: https://xdaforums.com/galaxy-tab-a/development/rom-samsung-galaxy-tab-7-0-lte-2016-sm-t3455788

I also noticed that there are more recent versions of SuperSU, which I found here: https://xdaforums.com/apps/supersu/v2-64-2-66-supersu-mode-t3286120

Another site recommends SR1-SuperSU-v2.78-SR1-20160915123031.zip

Should I just stick with SuperSU-v2.78-SYSTEMMODE.zip or is it safe/better to use one of the newer ones?

Thank you in advance,

sej
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] ashyx:
That's a custom ROM. There are no sd card issues in stock firmware. Once you have root you have control. Also I'm not sure where you're getting your version numbers from. Supersu provided in the op is 2.78 sr1 which is new enough.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] sej1971:
Thank you ashyx. I did it, it all worked. Do you have a custom ROM you'd recommend for the T280? I'm looking for something that can remove all the bloatware and move apps (including updates) to SD by default.

I tried installing an app called ROM Toolbox Lite to give it a try, I managed to uninstall or freeze a lot of apps and it seemed to free up quite a bit of space but it's "app2sd" feature doesn't work. I'm not sure if it's because I was using the free version and not the paid/pro version. Anyhow, I'm not sure if an app is really best or if a custom ROM would be?

Thank you again,

sej
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] ashyx:
Can't recommend a rom at the moment as Jed is the only one making custom roms so far.

You can use link2sd pro. Dont use patched knock off versions as they don't work properly.

Or try Foldermount, works for me.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] golditrdp:
stuck on NAND Write Start!! , please help me. my device was bootloop for about 4 months and i was trying to recovery with this twrp. i try to install with stock firmware but stuck on system.img
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] ashyx:
If the stock firmware doesn't install then it's not right for your device/region.

Also make sure you have the usb drivers installed then boot to DOWNLOAD mode.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] _mone:
Hi [MENTION=4899305]ashyx[/MENTION]

I've managed to port twrp-3.1.0-0 to the t280, thanks to the really helpful ideas exchange between you and jedld in various xda threads.

I still have to make some adjustments.. everything seems to work fine but sometimes I have slow touchscreen response (really annoying).. It probably depends on the kernel, I've asked samsung to release an updated version of their source and they did, but I think this source is more broken then the previous one! lol..

I wanted to ask you if in your first builds you had any similar issues (slow touchscreen response) and if you compiled the kernel from source.

EDIT#1:

by mistake I've set TARGET_RECOVERY_PIXEL_FORMAT := "BGRA_8888" (that's why the orange colour in the 1st and 2nd pictures)

Setting it to "ABGR_8888" restore the original twrp colour (3rd picture) and seems to help the touchscreen issue, so I'm thinking that maybe it's not the kernel but I'm missing some flags.. any thoughts?

EDIT#2:

Solved with "RECOVERY_GRAPHICS_FORCE_SINGLE_BUFFER := true"

:D:D:D
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] andrescm:
Thanks, rooted perfectly on Android 5.1.1. For some reason I thought step 2 was unnecessary (and frankly I was afraid because there was no explicit confirmation that the bootloader was compatible with Android 5.1.1). A stuck boot logo proved me wrong :D so I flashed the boot image via Odin and all went smoothly then. Thanks Ashyx!!!

By the way, when I first flashed TWRP I chose *not* to allow system modifications, so it reverted back to stock recovery. However, next time I flashed TWRP it didn't ask me to allow modifications. To fix this, just erase the /TWRP directory in the internal memory, resetting this way all its settings.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] dtp4578:
mount warning link2sd

Went through the process to get the sm-t280 tablet rooted and seemed to have success, thank you for the information! I am a newb and just doing this for my daughters tablet so that I can use link2sd.

Running into an issue with link2sd getting the mounting warning every power on. I have the sd card partitioned primary fat 32 and primary ext4. It will work on the quick reboot but would be nice to get past that issue. I have been trying to research how to fix it but have been coming up empty. Anyone else have this issue or know something to try to fix?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Nolimits87:
unroot

Sorry guys, I don't know if it's the right place but I have a problem on t280.

I rooted the tablet and now I'm not able to unroot it and change to stock firmware.

I tryed with odin but when I try to add the file (downloades from sammobile) on ap "odin not respoding". And I have to force close it , same problem on windows 10 and 7. There is another way to factory reset the tablet? Thank you
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] trefrog:
SetupConnection...

just trying step 1, TWRP install at this point. sticks on "SetupConnection...", and eventually "FAIL"

<ID:0/003> Added!!

<ID:0/003> Odin engine v(ID:3.1203)..

<ID:0/003> File analysis..

<ID:0/003> SetupConnection..

<ID:0/003> Complete(Write) operation failed.

<OSM> All threads completed. (succeed 0 / failed 1)

Kies not installed. Samsung driver installed. OEM Unlock checked. USB Debugging checked (also tried unchecked). tried different USB ports, and unplugging other peripherals. tried different versions of Odin, and running as Admin. Disabled antivirus. Considering trying in Safe Mode...

Windows 10 x64

latest OTA updates (could there be a version problem since last OP edit?)

any advice?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] ashyx:
Put your device in Download mode.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] trefrog:
well dang! could have been explicit, but yeah it's all good

[EDIT] new thread here: https://xdaforums.com/galaxy-tab-a/help/sm-t280-ive-huge-mistake-t3591660
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] sssscary:
I forgot to do "ENABLE OEM UNLOCK FIRST OR YOU MAY ENCOUNTER 'BLOCKED BY FRP LOCK' WHEN FLASHING. " this. Now I am stuck on boot logo, can't get into twrp, or boot into Android. Any advice?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] sssscary:
I flashed the original firmware and am back in business.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] 140.85:
Hey thanks for this. It seems to be working fine.

Should I update magisk to v12? is it possible/advisable? or completely useless and harmful?

Thanks.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] ashyx:
It's not possible to update without patches.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] 140.85:
Thanks for the answer. I get the "There's a new version! Update to v12 now!" but I'll follow your advice. I'll try to disable that update notification.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] joam280:
Some rom 7.1 for this model (t280)?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] ngvhoang96:
I flashed this twrp. Odin said PASS. But when trying to boot to Recovery mode (twrp), it had a red text on the top of the screen showing "Recovery is not seandroid enforcing.

What does that mean?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] sk2:
Do I need to be on stock? Currently on tinker edition and having bootloops after installing.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] ashyx:
Depends on what you installed? Too lean on details.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] sk2:
I got everything working, thank you.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] scttydb411:
Does this work on wifi version or just LTE version?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] ashyx:
T280 is the wifi model not LTE
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] scttydb411:
Thanks!

Does it matter which firmware I'm currently on?

APC5 (original US firmware) is what's on it now.

I keep delaying the update in case it closes root exploit.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] ashyx:
It's best not to update unless you really need to.

Best thing to do is make a full backup after installing TWRP.

You then have a way to restore should there be any issues.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] scttydb411:
What firmware has this been successfully executed on?

Newest US firmware is QA4 that I've found.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] zenful:
I have personally used this on the *AQA4 (newest) US firmware though I currently use a different TWRP for this device (3.1.1.0) found in another thread. Thanks again to [MENTION=4899305]ashyx[/MENTION] for the hard work involved with this and the device as well.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] mohosmaan:
I want to return to the original recovery and remove the TWRP recovery because i rooted my phone. Please help
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] JG420:
is there a magisk boot image for magisk v14? I managed to get TWRP installed, and I managed to get magisk installed, but your link to magisk automatically goes to magisk v14...and your boot image is for magisk v7...having issues here....
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] poo706:
Is Magisk required to root the SM-T280? I just want to root, it really doesn't matter to me whether it's systemless or otherwise. If it is required, could someone please share a link to v7? The link in the OP goes to the current v14 thread, and it looks like they've removed downloads to v7. Thanks.

[poo]
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] ashyx:
No, just follow the instructions to install SuperSU.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] mingkee:
There's no way to install Magisk without bricking the device.

Kernel for Magisk must be v14 to match the latest version or it won't work (no root or bricking).

Flash SuperSU is the only option for now.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] struct:
try to download supersu_2.78_SR1_systemless_boot_t280.tar but get this from androidfilehost.com "OOPS! No Mirror Found."
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] struct:
Does anyone here have a copy ?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] SilverLyricDragon:
Long story short, is it currently safe to flash magisk v14 on this device, or do I need to go down to v7, and also, what is the difference between them?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] mingkee:
Do not update to V14.

Install patched kernel will result in bootloop.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] dgriffi:
I can't get TWRP to install on this device. When I upload the TWRP installer via the AP button, the tablet reboots as expected, but the stock bootloader remains when I try to bring it up. Additionally, after a reboot to get to normal usage, the lock screen will accept one swipe and then lock. A minute or so later, the tablet will reboot itself and then things seem to be okay. What am I doing wrong?

Whoops! I had to untick the box to automatically reboot the tablet.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] SilverLyricDragon:
Noted.

So only flash v7 then?

If so, that's all I got to do then, already have TWRP flashed, don't remember the version exactly, and am rooted.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] bloodfawn:
is there a link to magisk v7, ive been trying to do this but since i read the new version doesnt work i cant find a link to magisk v7 anywhere
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] ashyx:
This really needs an update, things have moved on. If I get time this weekend I'll update to the latest version.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] bloodfawn:
thank you so much
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] test011a:
Thank you, ashyx

I hope the patched boot image for Magisk v14 come soon. I have been preparing my SM-T280 for this. Backing up everything on it, stocking up the stock images for emergency, etc.

(BTW, a noob question, I thought Magisk is doing the patch on boot.img when it is installed. SM-T280 is different?)
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] ashyx:
Magisk updated to v14.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] vin255764:
Hi guys,I'm kinda new to flashing,last flashing did few years ago..I get "fail" message in Odin,trying to flash twrp_3.0.2-1_sm-t280_261016 please help,what am I doing wrong?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] ashyx:
You haven't enabled OEM UNLOCK as clearly stated in the OP.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Arceus99:
So if i root this way will i loose all data in internal storage?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] SilverLyricDragon:
In my experience, unless something goes wrong, or you're flashing a pre-rooted ROM, it doesn't wipe the internal storage.

Although, correct me if I'm wrong.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Arceus99:
I rooted my tab following your method. Later is used link2sd to link apps to second partition(EXT2) of sd card. it worked but after restart apps disappear and i get mount error. Sreenshot is attached. Please help me with this problem or give som other solution to move aal apps to sd card. Btw I believe this root method does not give right root. Link2sd blamed root and i cant use /system /app mover app also(second screenshot).

Secondly, can i install su v 2.82 by this method?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] ashyx:
Why don't you use Magisk root instead, it's more up to date?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Arceus99:
I have flashed magisk along with super su.

Thanks for quick reply
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] b63:
had the same problem. the solution for me was to use the mount script from app2sd and not from link2sd to mount the secondary partition. then it survived the reboot and i uninstalled app2sd. it was not a root problem.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Arceus99:
Ok so mount script from app2sd and then uninstall it and use sd card with Link2sd in future?

Ps give me link to app2sd app because im confused with apps/app2sd
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] b63:
https://play.google.com/store/apps/details?id=in.co.pricealert.apps2sd

and yes, i did exactly as you said.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Arceus99:
Thanks bro it totally works. The problem was giving me headaches for two days. Now it works fine and i have restarted multiple times without any problem.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] ashyx:
You shouldn't use both as they conflict. You don't need SuperSU with Magisk and Vice versa. .
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] SilverLyricDragon:
Probably already answered, but is it safe to update the Magisk Manager app?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] ashyx:
Sure.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] SilverLyricDragon:
Thanks

Also, I've been having issues installing modules from the app itself, as it crashes at "Processing zip file".

I'm probably doing something wrong, aren't I?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Xyphoseos:
In which partition I must flash it ?

EDIT: It's ok, I was put twrp in french, so I had "amorcage" and no "boot"

thank you ^^
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] mrcraigawilson:
Super SU ate my UI

Same thing happened to me after a reboot - system UI wiped out
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] ashyx:
UPDATE: TWRP updated to build 3.2.1-1

.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] vayavalla:
When I try to add an app to the hide section on magisk, it doesn't get saved.

Does it work for you?

It works for me on other devices.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] ashyx:
Apparently Magisk hide doesn't work in v14. Looks like I'll have to update.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] angelus_kun:
When i try to add a module and reboot it dosent work :( magisk keep saying "module will be activated after reboot, even if i reboot :(
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Simmo1:
[MENTION=4899305]ashyx[/MENTION], Sir you are a genius! In fact there a great many members here that certainly know their stuff!!

I came here a few days ago looking for a solution to a problem with my Tab A 6, but Ive been getting distracted and wandering all over the site reading stuff, I'm blown away when you guys start talking coding and stuff! Shoot when I was a boy they just invented binary...

Anyway, maybe you can help or please direct me to a suitable forum or thread if needed.

Back to my problem...

I fly a Mavic Pro which is a quadcopter, it uses a device to run an app that gives more information and live video feed from the aircraft to the pilot.

I bought the Tab A in May last year and it has been flawless in its operation. Lots of useless apps deleted etc.

After an update from DJI, (the drone maker), the TabA started to fail. DJI said its the device...

I say its something like Secneo??

So, as a last resort I read up on rooting the device. All the files on hand, SD card ready and away we go.

Odin3 says added, AP loaded, start, PASS!

Button push again and vol UP. into twrp, choose storage, SD card, SuperSu, (I actually did your updated one 'systemless_boot' today)....

Comes up with the slider, reboot, and then I have the bootloop and Samsung screen....

WTF am I doing wrong???

(Oh, the only thing I didnt do at the start, was install any drivers on the PC, because I assume if Odin is working, and I can see this Tab in my file manager, I wouldnt have to?)

Sorry for the drawn out post, I'm simply frustrated!
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] ashyx:
You must install the systemless boot image AFTER installing SuperSU or your device will boot loop.