yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy Tab A series Guides, News, & Discus] thex2:
My personal problem was bouncing around all of the install guides. On the Nexus Custom ROM guide, it tells you:

I followed those directions. It never mentions wiping data prior to flashing the custom ROM to AP with Odin. I wiped the data after installing the custom ROM to AP with Odin. Had the directions told me to install the custom ROM again after wiping, I'd have done that.

Also, per this thread, it mentions "For later versions of TWRP you should wipe the encrypted data partition before flashing TWRP so that TWRP can access the data partition." How do you wipe the encrypted data partition prior to flashing TWRP? Is that done through Odin or fastboot and if so, how? Thx.
[Samsung Galaxy Tab A series Guides, News, & Discus] lewmur:
The instruction to "wipe" the data partition the first time TWRP starts, is misleading. As I instructed, you need to FORMAT the data partition by selecting the "Wipe" option and then select "Format data". There is a difference between just wiping the data partition, which does NOT remove the encryption, and formatting it, which does.
[Samsung Galaxy Tab A series Guides, News, & Discus] redhonker:
TWRP 3.3.1-5

The main page has a button called Wipe. Click into it has 2 buttons: Advanced Wipe and Format Data. What's required here is Format Data.
[Samsung Galaxy Tab A series Guides, News, & Discus] lewmur:
Don't tell me. I know it does. Tell the person that claimed there was no "Wipe" button.;)
[Samsung Galaxy Tab A series Guides, News, & Discus] redhonker:
OK. There is a wipe button

The instruction was

If you do that, it won't work as stated above. Need to Format Data
[Samsung Galaxy Tab A series Guides, News, & Discus] lewmur:
JThat's exactly what I've been saying all along. I'm NOT the one who needs this info.:laugh:
[Samsung Galaxy Tab A series Guides, News, & Discus] dev.null.vw:
Is linux only boot possible? If so software mirrors?

Do you know if there is a way to install linux in sm-t510 and use as a laptop(I will connect a usb-c to usb-b/hdmi hub and connect keyboard, mouse and a monitor)? Another choice is fire HD 10.

1. Any light weight or preferable ubuntu or mint are my choices.

2. Will the GPU work and other peripherals have linux compatible driver?

3. If I manage to install ubuntu will I be able to install all software that are hosted by ubuntu repositories(by getting source and building it). Here I am wondering about the x86 to ARM software compatibility for libre, chromium browser, GIMP and some remote desktop app.
[Samsung Galaxy Tab A series Guides, News, & Discus] elliwigy:
theres is a button that says "wipe" that you select then inside that menu yheres a button that says "format data"

the instructions are clear enough.. any time a user has an issue (resulting from user error) they tend to blame the dev/op for some reason lol
[Samsung Galaxy Tab A series Guides, News, & Discus] elliwigy:
not sure why anyone would use this tab as a laptop but theres apps you can install that will allow you to run linux within a container..

for anything else if its not posted on xda then i doubt ull find anythimg better

as far as apps are concerned the os would need to be the same arch as the device which is arm.. so w.e os u install ull b able to use whatever software they have available on arm

AndroNix and termux works fairly decent

good luck
[Samsung Galaxy Tab A series Guides, News, & Discus] MossyTC:
I've added the referenced guides inline in the OP, so not so much bouncing around.

My mistake. That should have read: "wipe the encrypted data partition after flashing TWRP".

I was sure that I did a factory reset each time. Must be wrong about that. Corrected, thanks.
[Samsung Galaxy Tab A series Guides, News, & Discus] lewmur:
A factory reset does NOT format the data partition. It merely erases PART of the data. And it doesn't get rid of the encryption.
[Samsung Galaxy Tab A series Guides, News, & Discus] dev.null.vw:
SM-T510NZSAXAR or SM-T510NZKWXAR

Is SM-T510NZSAXAR or SM-T510NZKWXAR easier to unlock or root boot loader? Or are they same procedure?

Also, does any one know the difference between these spec wise?

---------- Post added at 01:20 AM ---------- Previous post was at 01:06 AM ----------

Why tablet as laptop: Its light weight(1.7 lbs with keyboard) to carry around, cheap(<200$) without compromising build quality(only in some case). If I can get samsung linux on dex with root and no corporate stuff(i.e bloatware from samsung and google). That will work for me. If I need more compute I can get from some cloud service.
[Samsung Galaxy Tab A series Guides, News, & Discus] ijustwantlineageos:
I think I messed up!

Hello!

I'm not sure if this is the place to ask my question, but I think I did something stoopid and I want to be careful how to proceed, or I fear I might completely brick my device. Any pointers would be very appreciated!

I tried to change the Nexus boot logo by modifying the tar param file (in /dev/block/mmcblk0p12) on my newly rooted SM-T510 with LOS (thanks for the LOS port Magendanz).

My attempt didn't work, and now I can't boot, and I also can't boot to recovery. I can only boot to download mode.

This is what I tried to get myself out of this pickle:

1) I tried to use Odin to replace only the param file with the original backup (using the AP field and the param file named param.tar). Odin crashed.

2) I tried to reinstall all of LOS with Odin from the download mode. Odin does the whole installation thing, but the device does not boot after, the problem remains whole

Now the last thing I can try by myself is to lock the bootloader so that it does a factory reset. My worry is that if the factory reset does not replace my modified param file with the original one containing the original boot logo, then I don't know if I can unlock my device again to do a clean install of LOS or try other things.

So I'm here to ask 3 questions:

1) Does anybody know: If I do a factory reset, will that replace the param file which contains the nexus logo, solving the issue?

2) If I lock the bootloader to do a factory reset, will I be able to unlock it again only using download mode? Or will unlocking again require to boot (which I cannot do)?

3) Any other suggestion, perhaps using Odin in a more proper way?

Many thanks!

EDIT: I figured out my solution :)

I extracted the param.lz4 file from the stock BL file, TAR'd it and flashed it using odin. I now have the old samsung boot image, but I can boot!
[Samsung Galaxy Tab A series Guides, News, & Discus] Sarzeck:
I'm getting "Only official released binaries are allowed to be flashed (Recovery)" Anyone else having this issue?
[Samsung Galaxy Tab A series Guides, News, & Discus] elliwigy:
u did something wrong.. i suggest start over from the beginning.. its not letting u flash custom recovery so i assume ur bl isnt properly unlocked
[Samsung Galaxy Tab A series Guides, News, & Discus] Sarzeck:
I get the boot warning screen saying that it is unlocked. I no longer have the OEM unlock option under developers options.
[Samsung Galaxy Tab A series Guides, News, & Discus] holicalco:
Another confirmation on T515 unable to downgrade.

Tried to go like this:

Downgrade stock firmware in order to get matching TWRP

TWRP

Custom rom Nexus_Stock_T515XXU1ASEH-20190909.tar.md5

Any other custom roms to make T515 bit lighter? I can go without sim stuff.
[Samsung Galaxy Tab A series Guides, News, & Discus] lewmur:
Deleted.
[Samsung Galaxy Tab A series Guides, News, & Discus] mulperi:
Why not update stock rom to latest version. Install twrp and magisk to root it and then start to lighten up the system by disabling all the bloatware. I use nova launcher and it is very nice.
[Samsung Galaxy Tab A series Guides, News, & Discus] DigitalRaver:
Update and check again :cyclops:
[Samsung Galaxy Tab A series Guides, News, & Discus] Danizer:
I have build no. T510XXS2ASH3. Can I use

twrp-3.3.1-5-T510XXS2ASK1-20191207.tar.md5
[Samsung Galaxy Tab A series Guides, News, & Discus] jerepo:
I followed this guide and have now an unlocked SM-T510 with TWRP and Magisk. At this point what I do with Android devices is encrypt the internal data from the Security (Safety?) menu in Android, but the process didn't work, the encryption starts and after a minute the tablet reboots. Can I even have a rooted encrypted SM-T510? Like, to avoid someone from accessing the personal files from the TWRP.
[Samsung Galaxy Tab A series Guides, News, & Discus] Danizer:
Same problem. If you finds any solution then please let me Know.
[Samsung Galaxy Tab A series Guides, News, & Discus] SamKook:
Very informative guide, thanks for that, but I'm having an issue with my SM-T510 and I really don't know where I've gone wrong so I'm hoping someone here can help.

I unlock the bootloader with the bootloader guide(after the first time, I just make sure the OEM unlocking appears in dev options rather than locking and then unlocking it again) and the tablet indeed tells me it's unlocked and OEM lock is set to off once I reach download mode.

Then I flash the TWRP.zip.md5 matching my version(ASK1) with odin and 5 sec later it succeeds and reboots the tablet and I immediately hold power and vol up to launch TWRP.

Then I install multidisabler 2.2 from my sd card, format the tablet with the wipe menu and reboot, do the android first time config and then power off the tablet.

But once I power on the tablet again, I get the "Only official released binaries are allowed to be flashed" red message on the top left and the tablet power off after a couple sec.

I can flash the official binaries back and the tablet is fine but I have no clue what I'm doing wrong that renders it useless.

First time I tried I flashed magisk from the sd card after I formatted the tablet and before I rebooted. Tried to boot with vol up + power after reboot to launch android with it activated or at least get into TWRP but it never booted anything and then I got that error.

The second time, I omited magisk and just did what I mentioned above and still get the same error so I'm stumped. I'm hoping it's something obvious my newbie self can't see and a veteran will notice immediately.

Also, unrelated to the question but might be a good idea to mention you need a more up-to-date version of windows 7 than SP1 if you're having issues with odin not recognizing the device and you indeed have the drivers intealled.

Took me so many hours/days to figure out that's why odin was refusing to recognize my tablet when I connected it at first and it detected it immediately after I installed the aggregation of updates they kinda call SP2(updates till sometimes in 2016).
[Samsung Galaxy Tab A series Guides, News, & Discus] Danizer:
Can anyone upload systemui.apk of t510. I messed up with the file and also dont have any backup.
[Samsung Galaxy Tab A series Guides, News, & Discus] sinedoke:
Is there anyone that could use a Custom ROM on SM-T515? I only found roms for SM-T510.

Thank you
[Samsung Galaxy Tab A series Guides, News, & Discus] elliwigy:
im sure everyone could use more custom rom options lol..

your question sounds like youre offering to make one, go for it!
[Samsung Galaxy Tab A series Guides, News, & Discus] Rotom128:
Edit: Nvm.
[Samsung Galaxy Tab A series Guides, News, & Discus] Chaosghoul:
Downgrading possible at all?

Hey there,

thanks for compiling all of this. After hours of trying to get everything to work and running into a lot of issues, I managed to at least root my SM-T510 with Magisk.

This seems to be my main problem. I am on the March update T510XXS3ATB4 since unpacking my device (I just got the 3gb Ram, 64gb internal storage variant). Most (if not all, I couldn't really find any different) custom roms are based on the November update T510XXU2ASK5 about which Odin throws a bunch of Revision errors in my face when I try to install them :(

Anything you can help me with/point me towards a guide for downgrading my SM-T510?

Thannks in advance and kind regards

Jakob
[Samsung Galaxy Tab A series Guides, News, & Discus] arvee011:
Hello! I', New to rooting and planning to buy this tablet. Im quite confused on some of the statements and just wondering if anyone could enlighten me.

1.) Does clicking wipe/format data on the TWRP deletes everything including the android OS? Do I have to install a custom firmware to be able to use the tablet?

Im ok with the installed OS and just want to have a root access. Thank you very much.
[Samsung Galaxy Tab A series Guides, News, & Discus] coolbeans2016:
Samsung

Getting back to Samsung devices for 1st time in years, noticed setting up my A305G that during the process your describing it stated in OP on that "do not setup user info during process"... like don't put in your google email, etc... just skip all of that to get in & do the developer options. I'm here cause always check XDA b4 purchasing a device. Seems like 9 is the last version of Android thats going to have TWRP...

Hope that helps.....

zach
[Samsung Galaxy Tab A series Guides, News, & Discus] papagalus:
I have a Samsung Galaxy Tab A10.1 (2019) SM-T515 T515XXS4ATB4 tablet and want to install TWRP on it. I searched the web and found nothing for this model. I don't know what to look for or a TWRP is not available for my tablet yet. I want to know if I have to wait or look for more. For rooting what application can I use without needing TWRP?
[Samsung Galaxy Tab A series Guides, News, & Discus] Baked9500:
Late answer but in case anyone else need help with this you just need to connect to the internet on the tablet and go search for system updates once, then the OEM option will appear and be enabled again. Also remember to enable usb debugging because it all gets disabled after unlocking bootloader.
[Samsung Galaxy Tab A series Guides, News, & Discus] macromicro:
Lineage+MicroG??

Thanks for all the detail the went into this post, great collaborative effort!

I have a hypothetical question in regards to this build: Would this build possibly be compatible with MicroG?

I know Lineage doesnt support signature spoofing BUT on other devices I have achieved Lineage+MicroG by root+smali pactcher for SigSpoof..

Is there any reason (technical or otherwise) why this could not work on the Samsung SMT510??

I am interested in purchasing this tab..

Thanks everyone!
[Samsung Galaxy Tab A series Guides, News, & Discus] fateleap:
Tablet stuck rebooting!

Help I think I ****ed up :(

I was able to follow the steps to install TWRP and I installed Multidisabler. Then I did Wipe->Format Data. Now my tablet only goes to the screen saying "Samsung Galaxy Tab A - Secured by Knox" "Powered by Android" There is also red text at the top saying "Only Official released binaries are allowed to be flashed" and then reboots and goes back to that screen and loops doing that. I cannot even enter the recovery mode by pressing Power + Volume Up anymore.

I hope I didn't permanently brick it. :crying:
[Samsung Galaxy Tab A series Guides, News, & Discus] elliwigy:
a permanent brick is when its completely dead n doesnt even turn on.. so ur good, u prolly just didnt follow all the steps.. fyi thats all normal behavior except the bootloop of course
[Samsung Galaxy Tab A series Guides, News, & Discus] holicalco:
I gave up with this tablet for couple months. I wasnt able to root it. Dont know if it's some timing issue for pushing buttons or if i have wrong version of magisk or twrp. Every time i started from beginning with stock rom had no luck with root. Now i start this project again and try to find failure point. Was there specific root guide for t-515?
[Samsung Galaxy Tab A series Guides, News, & Discus] SRK1979:
Odin hanging at recovery.img

I follow the instructions but I only get as far as trying to flash TWRP in Odin. Odin stops at installing recovery.img. Any ideas? Thanks!
[Samsung Galaxy Tab A series Guides, News, & Discus] klemen241:
same, recovery doesnt support androdi 10
[Samsung Galaxy Tab A series Guides, News, & Discus] lewmur:
The TWRP kernel has to match the kernel of the ROM you have installed. If you have the stock BTFN ROM installed, the only version of TWRP that works, AFAIK, is the one included in the BTFN Nexus ROM. So, if you flash that ROM with Odin, it will install TWRP with the BTFN kernel.
[Samsung Galaxy Tab A series Guides, News, & Discus] elliwigy:
i never had problems but reason is because older twrp is using android 9 sources and 10 is using 10 sources.. i just patched boot.img and flashed it and it rooted just fine if anyone just wants root
[Samsung Galaxy Tab A series Guides, News, & Discus] -=ApA=-:
About to root SM-T515 with buid number PPR1.180610.011.T515XXS4ATE3

So as i understand, i should stay on Android 9 at this time and not update to Android 10?

Want to root only.

Last device i rooted was Galaxy Tab 4 SM-T535 so this new stuff is a bit confusing. Do i patch stock rom with Magisk

only like here https://topjohnwu.github.io/Magisk/install.html#samsung-system-as-root or do i still have to

go through all the TWRP-multidisabler-format mambo-jambo?
[Samsung Galaxy Tab A series Guides, News, & Discus] lewmur:
You make that sound simple. Assuming you've updated to stock Android 10, BTFM, how does one "just patch boot.img" in the TWRP md5? Or do you somehow patch BTFM before flashing it? If so, how?:confused:
[Samsung Galaxy Tab A series Guides, News, & Discus] Cindysmith0994:
Rooting this tablet is an exercise in frustration. Not a newbie to rooting, have rooted every Samsung device I've had since my Note 3. So thought it might be helpful for anyone else who want to throw this tablet out the window when trying to root.

Consider this a PSA announcement for anyone who buys in 2020 and tries to root with instructions posted a year+ ago. This was my experience, ymmv:

1. Do not update to Android 10 - you will never be able to boot the system with root. With or without the key combo.

2. You will need TWRP. Other posts say you can just magisk patch the AP file. It will appear to be successful, but no root when you reboot.

3. I could not use the most recent version of magisk. Only 19.3 worked.

4. If you use Post #77 from https://xdaforums.com/galaxy-tab-a/...wrp-3-3-1-2019-galaxy-tab-10-1-t3934805/page8 be aware that everytime you wipe/format data and reboot into system you must go through the full setup process and connect to the internet. If you don't, when you reboot KG State will go back to prenormal, you'll get the red message about official binary and have to start over again

4. All other instructions including unlocking the bootloader are required, just skipped here because that part went fine.
[Samsung Galaxy Tab A series Guides, News, & Discus] lewmur:
Removed
[Samsung Galaxy Tab A series Guides, News, & Discus] bedwere:
I couldn't. My SM-T515 upgraded to Android 10. Sure, I can flash and run TWRP, but I cannot reboot into system any more. My only option was to reinstall the exact Android 10 Stock ROM.
[Samsung Galaxy Tab A series Guides, News, & Discus] lewmur:
Sorry. I have two Samsungs. "Post #3" is actually for the T720. To get the T510 working from Android 10, you have to have the BTFN version. Do a search for BTFN in this thread and you'll see several post.:o I don't know if that same will work for T515.
[Samsung Galaxy Tab A series Guides, News, & Discus] pheraspu:
See that post:

https://github.com/topjohnwu/Magisk/issues/3262
[Samsung Galaxy Tab A series Guides, News, & Discus] Cindysmith0994:
Thanks, I did try this on Sunday, but didn't work for me. Satisfied to have root, not sure I want to mess with now. Will try again when I have more time.
[Samsung Galaxy Tab A series Guides, News, & Discus] AtlanGon:
Hi,

I am at the same position. [MENTION=9992977]Cindysmith0994[/MENTION] Can you confirm that it works?
[Samsung Galaxy Tab A series Guides, News, & Discus] lewmur:
You CAN flash TWRP from the BTFN version of Android 10 stock. But it has to be the TWRP extracted from one of the BTFN custom ROMs. I extracted it and uploaded it to Google Drive and shared this link. I don't know what versions of magisk work because I use the Nexus custom ROM and it has magisk built in.
[Samsung Galaxy Tab A series Guides, News, & Discus] AtlanGon:
I tried, but it's not working. I'm stuck in download mode and it says invalid recovery :(.
[Samsung Galaxy Tab A series Guides, News, & Discus] 4929york:
That statement is about as ambiguous as any I've seen posted. Mind giving a hint as what it was you tried?:confused:
[Samsung Galaxy Tab A series Guides, News, & Discus] Cindysmith0994:
What worked for me was flashing stock firmware and starting over. But I'm still on Pie; I could not root Android 10 using any method and not on custom ROM. For whatever reason, on this device KG State will go back to prenormal (and give you 1 of 3 error messages) if you don't go through the full setup and connect to internet everytime you reboot to system. You will need to check it in download mode before flashing anything & do the 7 day software update check thing to get it to checking if it reverts. Also still on magisk 19.3. Still trying to get 20.4 & 21.0 to worked based on posts here and in github, but no luck.
[Samsung Galaxy Tab A series Guides, News, & Discus] Karim Kahale:
Odin just hangs at magisk_patched.img when I flash boot.img md5. Can you please provide some help?

Thanks a lot.
[Samsung Galaxy Tab A series Guides, News, & Discus] AtlanGon:
Sorry yes of cause.

I successfully

- unlocked bootloader

- installed TWRP

- unencrypted partitions

- installed Magisk

- patched AP

after installing patched img. with Odin, no luck :(

stuck in bootloop
[Samsung Galaxy Tab A series Guides, News, & Discus] J.Michael:
What file did you specify in the AP slot in Odin? The TAR file "magisk_patched.tar"? Or an IMG file you extracted from magisk_patched.tar?

The opening post of the thread says you don't need to use Odin to install Magisk, you can use TWRP. That post does say you have to use Odin once, to flash the stock ROM.
[Samsung Galaxy Tab A series Guides, News, & Discus] AtlanGon:
- at first I extracted boot.img.lz4 used lz4 to change to boot.img patched that in magisk manager and installed it with Odin -> no luck

- then I patched the whole AP_T510XXU3BTH4....tar.md5 with magisk manager and installed with Odin -> no luck

(here the magisk_patched.tar has 3 changed files: boot.img.lz4 -> boot.img; recovery.img.lz4 -> recovery.img and vbmeta.img.lz4 -> vbmeta.img)

Somewhere I have seen to change all files in the AP to .img files, but I have not tried that jet.
[Samsung Galaxy Tab A series Guides, News, & Discus] piro.lito:
Hey guys,

how can i unlock my bootloader after having it relocked?

I'm on stock rom, tried to go to developer tools, but now i don't have the oem unlock option anymore.

Is there a trick to get it again?
[Samsung Galaxy Tab A series Guides, News, & Discus] Thiiibs:
Almost 2021 and People still get stuck following this tutorial. Is there any up to date guide for t510 and Android 10 ?
[Samsung Galaxy Tab A series Guides, News, & Discus] lewmur:
Look at the position of the OEM Enable switch. If it is greyed out, it is probably because it is already enabled. And you don't need it to unlock the bootloader anyway. All the OEM Enable does is turn off the FRP lock and all that lock does is require you to put in your Google Account info after a Factory Reset. If you don't recall your Google Account info, just add another account, write down the info, then delete the old account.
[Samsung Galaxy Tab A series Guides, News, & Discus] Clamtacos:
It sounds like what you might be dealing with is the RMM lock. There are tricks around it, but it can be difficult as there's lots to know. You can learn all about it here:

https://xdaforums.com/t/guide-17-06...ll-twrp-on-exynos-samsung-after-2018.3760975/