yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lewmur:
First of all, you have to understand you are dealing with two different "locks". Unlike earlier Samsung tablets, they have added a lock on the bootloader. This is NOT the same as the OEM enable in Dev mode. The OEM enable merely keeps the FRP lock from enaging. Also, to flash anything from Odin, Dev mode MUST be enabled. So the first step is to do that and enable OEM mode. Once you have done that once, OEM will remain enable but Dev mode WON'T. So each time you boot, you MUST connect Wifi but skip all of the rest of the setup, and the enable Dev mode again. The new bootloader lock must now be unlocked. You can't do that using the Power and Vol up buttons. You have to use the power off and cable plugged into the PC, then, while holding vol up and vol down, plug the cable into the tablet. Now you have the choice of the long press or short press of the vol up. By choosing the long press, you will get the option to unlock the bootloader. Short press goes to download mode.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] rw_on_xda:
thanks, I forebode ( wording ?) it that there are 2 locks.

Now LOS is flashed without errors, but since ~ 10 minutes I only see the LOS logo running.

I guess there is one (the last) step I'm missing ... ???
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lewmur:
How did you flash LOS and did you FORMAT, notice FORMAT not wipe, that data partition prior to flashing LOS?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] rw_on_xda:
I didn't format data, that could be my fault.

flash:

ROM from 1st page in AP with odin3_v3.14.4

on Download screen:

...

- FRP Lock: off

- OEM Lock: off(U)

...

EDIT:

there is no option to "format" data in my stock recovery, only "wipe data/factory reset".

I will try this and report later

- being afraid resetting OEM unlock with this ... -
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lewmur:
When your flash includes TWRP, as this one does, you need to hold the vol up while the ROM is flashing so that the tablet boots into recovery instead of the system. Then use the file management tool in TWRP to look at the internal storage. If the folder names all look wierd, it means the data partition is still encryted and must be formated, not wiped, to get rid of the encryption. If this is true, which it probably will be, then you'll also need to reflash the ROM with the zip file in TWRP. Do NOT reflash it with the md5 file with Odin.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] rw_on_xda:
I have to admit that can't pick what you mean.

I know TWRP from LOS 17.1 on my Galaxy S4.

I guess I need to try to flash TWRP only first to get a "format data" ..., read that somewhere in this thread ...
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lewmur:
You shouldn't need to do that. TWRP was included in the LOS ROM. At this point try booting into TWRP. Turn the tablet off, or if it is stuck trying to boot, hold vol down and power for about ten seconds. As soon as the screen turns off, switch from vol down to vol up and it should boot to TWRP. Then check the internal storage with the file manager under the Advanced button.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] rw_on_xda:
I was 2 or 3 times able to launch TWRP, but it seems it triggers a automatically script what runs very fast for ~3 seconds.

What I could see was : first line something failed and some lines later ~formating cache~, then the tab reboots...

I need a break I have tried since yesterday evening ~5 pm until ~5 am this morning and now again 5-6 hours...

next (maybe this night) I would try TWRP only or the nexus Rom (same maintainer) to get TWRP correct running on the tab.

anyway thanks for support !
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] andronikal659:
How long does it usually take for first initiation? I waited 10 to 20 min and still at lineage logo boot up? Am i missing gapps to load?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] andronikal659:
Thanks man, do you know any other site for android 10 firmware with modem/ cp? Samfirmware has no cp at all. Your site takes 3-4 hrs
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] rw_on_xda:
https://www.sammobile.com/firmwares/

click "Download Lastest Firemware" and key in your device (with modem should be SM-T515, this thread is for SM-T510 (Wifi Only)

you need to register there.

yesterday download took ~10 Minutes at a 50 Mbit internet line.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] rw_on_xda:
for the record:

I got it running and I was true as I said "I feel I'm just one step away ..."

from the guide:

https://xdaforums.com/galaxy-tab-a/how-to/guide-unlock-twrp-root-odin-howto-t3989361

=> Buttons

=> "Boot to Recovery (After unlocking bootloader) Power On and then press Power and Volume Up as soon as you see the unlocked bootloader warning. No need to hold."

this done and format data, bingo.

ping [MENTION=903232]Magendanz[/MENTION]

care to link the above guide to your install instruction on the first page ?

it would dramatically reduce headache, broken walls, overheated heads, suicides and maybe cardiac infarction for elder people like me !

:cowboy:
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] andronikal659:
No, modem/cp for Odin. There's no CP for Sam's firmware.

Edit: nvm, no CP either on Samfrew and it worked. third time was a charm. Running lineage now.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lewmur:
The link you give would appear to be for the Android 9 stock and not Android 10. ATE3 instead of BTFN.

edit: This matters because the ATE3 won't allow you to install the latest versions of either the LOS 17.1 or Nexus ROMs, so you won't get the latest security updates.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] bedwere:
Hi,

I've been following rw_on_xda's ordeal with a little apprehension. I ordered this tablet . Shall I follow his instruction or just stick to what is written in the first post? Thanks!
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lewmur:
The problem is that there are a lot of intructions that deal with Android 9, but which don't work with Android 10. And if you want to get keep getting the latest update and security patches, you need to start with the stock version of Android 10. You can follow the instuctions for unlocking the bootloader but after that, it depends upon which version of Android came with the tablet. Let me know and I'll tell you how I would proceed. (Which may or may not be the best way, but I know it works.)
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Magendanz:
Done.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] rw_on_xda:
many many thanks !

and one "many" more for the ROM :o

===

one (maybe OT) question to the round:

I usually sync calendars und contacts via DAVx⁵ (with Thunderbird and radicale on linux).

It works with my LOS-Galaxy-S4.

on the Tab setting up DAVx⁵ only sees and syncs the contacts.

no calendars.

while Etar (calendar) is default in LOS I installed it manually, but again: no sync or calendars from the server found.

for contacts and calendars it's the same account-data (URL, username, pwd)

I guess I miss some rights on the Tab ...

Idea's ?

EDIT

previous app version (at.bitfire.davdroid_302010401) fixed it !
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] bedwere:
Thanks! It seems to me that the most convenient course of action is to upgrade to Android 10/ BTFN first and then proceed from the instructions on post 1. Does the following apply to the SM-T510 without modifications?

https://gsm-flash.com/how-to-install-samsung-stock-rom-using-odin/

I would have preferred to use adb from Linux, but that's life.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lewmur:
Be sure to enable Dev mode and then OEM before flashing. Depending on your country, your tablet might upgrade to 10 OTA. If not , I'd use Frija to download for BTU, the UK version. Saints game has started, so I'll be busy for the next few hours. BTW, there is no CP for this tablet. Use AP, BL and Home for CSC.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] andronikal659:
Hi, i tried to install YouTube vanced but it keep force closing... anyway to make it work?

Edit: clean format again and tried to install a standard 64 but version of vanced and it worked. Weird bc this device is not 64 bit and i had to use microg + vanced legacy version to install. Everything is working now.

Great Rom BTW. Clean. No useless running services. custom feature like double tap and gesture. Really smooth. Minor issue is sdcard sometimes doesn't detect when plugged with USB and sound seems lower but it's all minor. Thanks for the work. Will play with it for a few weeks to see.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] rw_on_xda:
play with AudioFX and I meant I have something seen related to audio under Settings => "Phh Treble Settings"...

it seems I have found a bug ?

running music:

when the screen lock kicks in the music stutters (known from damaged mp3 or so).

can anyone reproduce it or is it just me ?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] SupaSiblings:
Gapps not working.

The links that OP provided above give Error 20. I'm using TWRP 3.0.2.0 because it's the only version I could find supported. Can anybody provide links to working Gapps? Or TWRP 3.4.0.0 for this. I'm stuck with it saying I need an android 9 rom. then 10
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] rw_on_xda:
TWRP is buildin into ROM and I guess it should be 3.4.x, so not need to install it.

And to install the ROM from this thread here you need to update stock to Version T510XXU3BTFN first.

AFAIK a requirement.

no gapps user here, but the Develper also provides a Rom with gapps buildin:

https://xdaforums.com/galaxy-tab-a/development/rom-nexus-stock-2019-galaxy-tab-10-1-t4056233

maybe this might fit your needs ?

btw.

there is a new stock: T510XXU3BTH4 - at least for some countries -

https://samfrew.com/model/SM-T510/

or

https://www.sammobile.com/samsung/galaxy-tab-a-101/firmware/#SM-T510
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] SupaSiblings:
It's not available in my country but I figured the problem. I dont know how but my Tablets CPU architecture was ARM. not ARM64 I used the ARM gapps version and it worked.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lewmur:
Your tablet is no different from anyone else's. The gapps version needs to match the ROM version, not the hardware. If you installed a 32bit ROM, you use the ARM gapps. If the ROM is 64bit, you use the ARM64 gapps. All T510s have ARM64 hardware, but ARM64 hardware will still run 32bit ROMs. The stock ROMs are all 32bits.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Zippy Dufus:
Hello,

I'm attempting to install this ROM for the first time on this device using Odin:

I have a Tab A (SM-T510ZKAXAC) from a Canadian Bestbuy which recently received the over-the-air upgrade from Android 9 to Android 10.

I followed the instructions in the OP and have the bootloader unlocked. I get the unlocked bootloader warning upon boot.

My flash with Odin (v3.14.1) failed. See attached images.

My device can be still booted but it appears to have done a factory reset of the stock ROM so it needs to be set up again.

Is there a checksum available for the downloaded tarball? I think that it OK because adding a .tar extension allows me to look at the contents in the Linux archive manager program.

Any ideas?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Magendanz:
The signed tarball (.tar.md5) file has a MD5 checksum built in and Odin won't flash it if the checksum doesn't match.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Zippy Dufus:
Yes, I now notice that the MD5 is successfully checked in the Odin dialogue.

I tried twice with Odin v3.11 and it hung after it apparently started to write the ROM (see dialogue below).

Both times, I had to break out after about 5 minutes using power/VolumeDown for 7 sec. Fortunately I haven't damaged the device, yet, and it can reboot to stock. I saw no activity indicating any progress.

Questions:

What is a proven version of Odin to use?

I see on the tablet screen in Uploading Mode the text Secure Download : Enabled. Does this suggest that there is a security feature preventing the installation of a an unauthorized ROM? Screenshot from previous post

Is there some trick or step that I might be missing in the flashing workflow? I.e The sequence to start odin, plug in the device, start downloading mode, select the ROM in Odin, etc?

Approximentally how l long does a typical flash take?

Is the procedure to re-lock the bootloader the reverse of the unlock?

In advance, thanks.

BTW - I've built and flashed hundreds of ROMs for many devices so I am comfortable with flashing from TWRP.

But I have only performed the initial flash from Odin a few times and always find it a harrowing experience particularly when I am very uncomfortable using MS Windows.

<OSM> Enter CS for MD5..
<OSM> Check MD5.. Do not unplug the cable..
<OSM> Please wait..
<OSM> Checking MD5 finished Sucessfully..
<OSM> Leave CS..
<ID:0/011> Removed!!
<ID:0/011> Added!!
<ID:0/011> Odin engine v(ID:3.1101)..
<ID:0/011> File analysis..
<ID:0/011> SetupConnection..
<ID:0/011> Initialzation..
<ID:0/011> Get PIT for mapping..
<ID:0/011> Firmware update start..
<ID:0/011> SingleDownload.
<ID:0/011> boot.img.lz4
<ID:0/011> NAND Write Start!
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lewmur:
LOS 18

I just got LOS 18 on my T720 and was wondering if it is being worked on for the T510.:fingers-crossed:
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] rw_on_xda:
[MENTION=3651088]Zippy Dufus[/MENTION]

to 1.

3.14.4 or 3.13.3. I'm not 100 % sure, but I mean I succeded with first one.

to 3.

it seems so. I got similar problems some weeks back.

The part what helped me was what is now linked on the first page in this thread, named "Unlock bootloader" and there under "Custom ROM..."

After an unsuccessful flash it also helps to reflash with stock (the version on the 1st page:T510XXU3BTFN) first.

boot and let the device connect to the internet (it downloads something; it was mentioned some pages back) and start over with unlock, LOS-flash, reboot to TWRP, wipe (stock recovery has no format), reboot

to 4.

~3-5 minutes.

to 5.

AFAIK, yes.

a stock flash should do too.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] rintinfinn:
Thanks Magendanz, for the great ROM! I've been using it for a week or so and it seems to be working nicely. I just found some minor quirks:

1. The LIvedisplay (blue-light filter) function does not seem to work . The color temperature settings are grayed out and the main setting can not be switched on (it reverts back to off by itself).

2. The second thing I noticed is the device reboots when enabling usb file tranfer. The adb bridge setting also forgets allowed devices upon reboot and therefore does not seem to work in twrp as well. Sometimes after booting to twrp or maybe having connected to usb before booting the OS the login screen (where you enter your pin) cannot be passed. (Screen turns off and on again back to login screen after entering the correct pin). It seems to work again after booting to trwp without usb connection to desktop. These later issues might have to with installing magisk, because I remember the usb connection stuff worked well right after flashing the rom. I don't wanna lose superuser rights, maybe there is another workaround?

3. Is there not haptic feedback on this device? It seems very odd to me...

Cheers, Rintinfinn
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Zippy Dufus:
Success!

I'm delighted that I was able install this ROM.

Excellent work [MENTION=903232]Magendanz[/MENTION] and others!

This ROM even feels snappier than the stock ROM.

For the record, here's what I did to overcome my woes:

I used Odin3 v3.14 running a really old, unmaintained Windows7 partition on a fairly old Dell Latitude laptop. (I normally run Linux)

Always use the original cable when flashing with Odin (Googling reveals that Odin is a very sensitive program)

Do not have your laptop connected to a docking station. This is what I believe caused my problem. I suspect that the USB drivers were confused with all the possible drives.

Be sure to run Odin as Administrator.

Upon first flash, it appeared stuck in the Lineage "smile" bootloop. I broke out of that and rebooted to TWRP to reformat data and wipe/reset. I also performed the dangerous-looking format data where you type in "yes" to proceed. This resulted in the device not being able to reboot to Lineage at all (not even the smile).

So I reflashed with Odin and the device booted straight into Lineage with surprisingly a few iterations of the smile. I've seen some of my other Samsung devices needing a second flash to be functional.

My next step is to figure out how to build this ROM myself. :cowboy:

Thanks again!!
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] elliwigy:
you cant flash custom binary in a kg prenormal status
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] elliwigy:
its cuz his kg status is prenormal.. when its prenormal u need to boot into rom and connect to internet.. if he follows instructions for twrp or most other instructions he wont have kg status issues
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Zippy Dufus:
Thanks for the info!

This screen image of my first attempt from the prior post of my first attempt definitely shows that it is in Prenormal state.

Are you saying that you must reboot the ROM that is running while connected to WIFI? If going to Downloading Mode from a cold start, it is in Prenormal state?

I didn't look that closely at the Downloading Mode screen on my second and third failed flashing attempts.

I'm still fairly sure that unmounting my laptop from the docking station, removing any other devises from USB, using a different USB slot, and rebooting the laptop caused my successful forth attempt.

I've only ever flashed a couple other smartphones years ago from Odin and I think that I can remember similar problems on my now fairly-old laptop.

BTW, I've been (disappointingly) following your posts about the doomed Samsung hack to enable the OEM bootloader on my new a10e phone. :crying:
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] rw_on_xda:
kg is what ?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] jaladhjin:
Think I made an error at some point.

This is the first time I've actually ever ran into trouble rooting & flashing on any device. :-/

I flashed lineage-17.1-20200812-UNOFFICIAL-T510XXU3BTFN.zip (TWRP update) in TWRP from I want to say an April maybe build of this same LoS 17.1 rom.

I saw a lot of successes all looked well did that Wipe Cache for good measure 'cause I always do & rebooted.

Well it's just chillin' on the initial Lineage boot logo & has been for so long I went & plugged it in so it wouldn't die during this what appears to be unsuccessful process :(

I don't understand I downloaded the zip & flashed it in TWRP.. from an existing LoS 17.1 I thought dirty flashes on the same ROMs was usually pretty acceptable.

How long does it take that first run of the latest & greatest 17.1 to boot ? :(

I'm going to leave it for awhile but if it doesn't start.. will flashing that same version via Odin maybe yield more success ?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] rw_on_xda:
Don't jump from a roof or out of an cellar window :cool:

You're not alone !

follow the link named "unlock bootloader" of the first page of this thread

< 5 minutes, IIRC, but only when the "lastest & greatest" flash is done successful :angel:
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lewmur:
You can't flash the BTFN version from the Android 9 TWRP. You have to do it from the BTFN version of TWRP flashed via Odin. But to do that, you have to either extract the recovery.img from one of the BTFN md5 files and then make a tar file from the image, or flash the entire md5 file. Flashing the entire file takes a little longer but is easier. Unfortunately, you will still need to flash the zip file again from TWRP because you have to also format the data partition to get rid of the encryption. Clear as mud, right?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] jaladhjin:
I got it to boot again by flashing the original image & going back to unmodded.

Now I have a new issue it seems.

I downloaded the newest rom from post 1 3 times in 3 different browsers & Odin gives me an md5 error when loading it.

I've tried running Odin as admin as well which I didn't think would help & it didn't.

Any advice on that or re-uploads / mirrors of the download I could try?

The stock firmware I loaded is also ending in TFN for the build.

---------- Post added at 05:34 PM ---------- Previous post was at 05:32 PM ----------

I can't though since when I flash TWRP it seems all the files I moved over to tablet storage are gone.

And I get an md5 error in Odin when attempting to flash the rom :(
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] 4929york:
You have to put the zip file on the external sd card because formatting the data partition deletes EVERYTHING on it. I just added a post in the kernel, ROM and recovery that has a link to TWRP for the BTFN ROMs. I don't know if flashing it will encrypt the data partition but it is to late for you to worry about that unless you have a TWRP backup you can restore before proceeding.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] jaladhjin:
I don't have an external SD though.

I need to put an SD in?

I don't did that when I was running the April build.

What's BTFN?

I also hear another guy keep saying KG like we all know what it means do you know what it stands for? Haha

I just downloaded the Android File Host version as well md5 error! Binary is invalid

---------- Post added at 06:08 PM ---------- Previous post was at 05:52 PM ----------

I've downloaded the newest Odin version of the rom 4 times now on 3 different browsers this 4th time just now from Android File Host instead of the One Drive & Odin keeps telling me md5 error! Binary is invalid :(

Not sure what to do next.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Magendanz:
I just downloaded this latest version again from Android File Host and it passed the MD5 check fine. Don't know what to tell you.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] jaladhjin:
Well shucks alrighty.

Truthfully I'd be okay with stock rooted but flashing recovery appears to wipe the files like Magisk I transfer over.

External SD the only way to achieve that do you know ?

--- 5th time was a charm apparently since you confirmed it checked out for you I tried again in IE over Chrome & it worked to flash but now it's looping on the Lineage OS logo :(

I followed the OEM stock firmware instructions & TWRP didn't launch after the flash.

Do I need to launch that & wipe data?

It says "if" Twrp launches which it did not it went right to booting up.

It all worked so great on the April install of the ROM I feel dumb this upgrade is going so poorly.

---x2 finally got the tablet to boot again.. that was the issue maybe it may be worth adding a common obstacles section to the OP.

With some wording like after an upgrade & clean flash boot into TWRP & wipe data.. not maybe not possibly but definitely.

Might save a lot of issue posts from people like me lol

And a giant red "Do not dirty flash these builds" on the ones that can't be.

Giving us too much credit thinking we know lol

Thanks again for checking the download too I think I'm in the clear.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] wombatch:
Spoofing

Did you try FakeStore or was it not of interest to you? It installs but the spoofing support in this ROM requires that you authorise each app, since FakeStore is never started I have not found a way to authorise it (for microg check). It may be that there are very few apps that actually need it in place but it would be good to find a way to tidy this up, is it possible?