yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy Tab A series Guides, News, & Discus] punteruk:
i've tried to use heimdall on arch linux to install TWRP but it ain't working so slight bummer :poop:

for the sm-t700 I used the luisrom for klimtwifi.......not sure what to go for on this TAB A7.....need to look at another way to get TWRP installed first :confused:
[Samsung Galaxy Tab A series Guides, News, & Discus] shorty9210:
Sorry I have been out of the rooting seen for a bit, but I have a issue with TWRP not letting me back up my stock rom, am I the only one having this issue, I would like to try lineage rom but don't want to have to reflash the stock rom if anything goes wrong!!

Thanks in advance
[Samsung Galaxy Tab A series Guides, News, & Discus] lewmur:
TWRP can't backup stock because it can't handle the encrypted data partition. You have to use some other backup tool.
[Samsung Galaxy Tab A series Guides, News, & Discus] Arno_Nuehm:
Did anybody try this TWRP recovery on T505 (the LTE version)?
[Samsung Galaxy Tab A series Guides, News, & Discus] mystifuzz:
I've seen someone try it out and no, it won't work. The recovery will just crash.
[Samsung Galaxy Tab A series Guides, News, & Discus] drsanusi:
Hi mate i am here to see any progress for the same tab as u

For the recovery i used skyhawk for 500 worked fine on my tab . But crash .and i never use it again .cause i want working rom .still nothing ..i was happy for that gui .but ...thats it ....hope u have some luck
[Samsung Galaxy Tab A series Guides, News, & Discus] Arno_Nuehm:
Hi, you got me a bit confused there :D

Did skyhawk work or did it crash?
[Samsung Galaxy Tab A series Guides, News, & Discus] drsanusi:
It worked very nice. But i was unable to do anything because of encryption.that time i dont have SD card i want to root at least....then ...i reboot.i stuck on bad message of unsupported file ....so. Flashed the stock ..keep visiting here to see if any rom came out

So it's working but my steps may be not the right one.. if u had luck to do it right plz give feedback.....my fault is the recovery get lost after reset.. good luck
[Samsung Galaxy Tab A series Guides, News, & Discus] mystifuzz:
Good to know you got it to work!

The fix for the recovery getting lost after reseting is to flash Samsung Multidisabler (you can find it on XDA).
[Samsung Galaxy Tab A series Guides, News, & Discus] EdwardTCM:
So wait it boots into TWRP and crashes?
[Samsung Galaxy Tab A series Guides, News, & Discus] mystifuzz:
That's what I think happens, yes. It seems like Skyhawk does work on the T505 model though. 🤔
[Samsung Galaxy Tab A series Guides, News, & Discus] EdwardTCM:
Oh wow but it's gonna need some mods for it
[Samsung Galaxy Tab A series Guides, News, & Discus] mystifuzz:
What mods specifically? If fastboot properly on that recovery then I'm pretty sure you can flash a GSI without any issue.
[Samsung Galaxy Tab A series Guides, News, & Discus] Navani:
Thanks for this! Everything works and is compatible, but I get EXTREMELY bad lag no matter what I do. Is there a way to reduce this? It's almost impossible to browse Reddit or anything.. I can watch videos and stream fine, it's really just lagging when loading anything or navigating..

Sorry if there's a common solution to this, couldn't find anything in searches and I haven't rooted a device in years prior to this :)
[Samsung Galaxy Tab A series Guides, News, & Discus] mystifuzz:
I don't think there's anything you can do about it. There were no updates for this ROM in quite some time and I don't think it'll change anytime soon.

Did you try to install the GSI Lineage though? It works a bit better imo.

Here's a guide on how to flash a GSI onto this tablet (if you don't know how to do it): https://xdaforums.com/t/guide-sm-t5...flash-lineageos-or-any-other-gsi-rom.4378017/
[Samsung Galaxy Tab A series Guides, News, & Discus] EdwardTCM:
Mods to the device tree so it works fine with it
[Samsung Galaxy Tab A series Guides, News, & Discus] drsanusi:
Coming from tab2 roms which was perfect thanks to androidandi. The main thing for me was battery draining in Samsung's rom.and here also when i let my tab for few days i found it drops too much..i use it in reading only study .so here again to fix this problem...which is pure software thing.

First think is the processor resting frequency may lead to this .put my phone which is realme more powerful but nodrain at rest.leave it few days no any drop in battery level.......so here we go again samsung things. And. Waiting for any suggestions? roms ?
[Samsung Galaxy Tab A series Guides, News, & Discus] agreenbhm:
Hello all, I have released a version of LineageOS 19.1 for the SM-T500. You can find it here: https://xdaforums.com/t/rom-sm-t500...4-2020-lineageos-19-1-and-twrp-3-6-1.4421365/

And a quick note since I see the discussion here: the ROM from this thread and the new one are both from GSIs. All you need to do to update is technically flash your system partition with a GSI of your choosing. Easier said than done, but the easiest approach I've found for this device is to build a new super partition with lpmake consisting of odm, product, vendor, and system (with system being the GSI).
[Samsung Galaxy Tab A series Guides, News, & Discus] LOR3NZO_33:
i installed this rom but the wifi isnt working, i literally cant see any wifi appear on screen, it auto-disables. please how do i fix this??
[Samsung Galaxy Tab A series Guides, News, & Discus] mystifuzz:
You'd have to download the official firmware ending in 3BUF3, then install LOS 18.1 again. It's the only solution as far as I know.
[Samsung Galaxy Tab A series Guides, News, & Discus] LOR3NZO_33:
do i have to flash opengapps too?
[Samsung Galaxy Tab A series Guides, News, & Discus] mystifuzz:
In LOS, right? If you care about GApps, then yes. OP recommends NikGapps, BTW.
[Samsung Galaxy Tab A series Guides, News, & Discus] Ahmed Salama 127:
hello can any one have a SM-T505N send to me the build.prop

from system> build.prop

with any root file manger

and thx
[Samsung Galaxy Tab A series Guides, News, & Discus] Alcante100:
Hi guys I have a questio please need help. I have a Samsung tab A7 2020 looking for the best customs roms with no problems. Do you have one in mind. When look people struggling sometimes better stay with the stock. Please help guy.
[Samsung Galaxy Tab A series Guides, News, & Discus] linuxlonestar:
Hey, I know this is an old forum, but is there a reason Wifi won't turn on in lineage 18.1? i can't seem to get it to enable and connect. and another thing, is there any way to get google service certification?
[Samsung Galaxy Tab A series Guides, News, & Discus] Jim in CA:
Yes, there is a reason. This procedure requires that you start with the same stock rom as posted in first post. If you start with any other version of the stock firmware you apparently will have the wifi issue. I did, trying multiple times and different instructions. To make matters worse, once you load a UI4 stock firmware you can't go back to a UI3 firmware to avoid it. Odin won't allow it. You are screwed!

But I found a procedure that works with the SM-T500 with the latest UI4 firmware!!!

I started over following the procedure I found in this thread, and it seems to work fine on my SM-T500. (The thread was written for the SM-T505, so substitute the stock SM-T500 firmware.) I have used it for a week+ and no issues, other than the charging issue while turned off. The Magisk module does fix the brightness slider.

I have a SM-T500 that had the latest stock firmware, T500XXU4CWA1. I used Andy Yan's lineage-19.1-20230508-UNOFFICIAL-arm64_bgN-vndklite.img GSI. I did the optional step to turn off the encryption. This GSI includes Gapps, so no additional step was necessary to flash Gapps.

I did not experience the triggered reboots that Hausemaster documented in step 15. Just a smooth setup. The procedure is actually pretty straight forward once you try it, although longer than the previous procedures I had tried. It does work as written.

[SM-T505,T500,T507] Samsung Galaxy Tab A7 LTE GSI flashing guide [UPDATED] [Android 13 GSIs]

Just before we get started, I would like to say that you will not brick your device if you follow the steps as is without any, and I mean any deviations. Read what works and what doesn't first! Okay, enough preface, let's jump right in! Firstly...

xdaforums.com
[Samsung Galaxy Tab A series Guides, News, & Discus] Jim in CA:
I forgot to add, no issue with Google service certification using this procedure.
[Samsung Galaxy Tab A series Guides, News, & Discus] Jim in CA:
You are making progress! If you used the Andy Yan GSI, pay very close attention to which variant you used. I used the lineage-19.1-20230508-UNOFFICIAL-arm64_bgN-vndklite.img. Make sure you are using the arm64, and the bgN version. The "g" in bgN means it has gapps built in. No need to flash gapps. You should get the Google Play Store to install apps.
[Samsung Galaxy Tab A series Guides, News, & Discus] linuxlonestar:
Thanks for the reply, but I should have elaborated. I have the google play store and all other gapps, however, when I try to install any apps via the google oaky store it tells me to free up space, despite the storage being almost entirely free.
[Samsung Galaxy Tab A series Guides, News, & Discus] LegoLivesMatter:
How did that happen?
[Samsung Galaxy Tab A series Guides, News, & Discus] agreenbhm:
The fstab I used incorrectly pointed to the on-board flash as the external SD card, so when I attempted to format an SD card it wiped the entire device. Only thing I was able to do was get to EDL mode and since there are no publicly available files to recover this device from that, I was SOL.
[Samsung Galaxy Tab A series Guides, News, & Discus] EdwardTCM:
Oh, Dang that sucks is it finally repaired?
[Samsung Galaxy Tab A series Guides, News, & Discus] agreenbhm:
Still waiting for it to be returned. I'm hoping it'll be this coming week though.
[Samsung Galaxy Tab A series Guides, News, & Discus] EdwardTCM:
Yeah I'm very lucky that I didn't wipe the External SD card (NAND) can't wait for TWRP B2
[Samsung Galaxy Tab A series Guides, News, & Discus] agreenbhm:
B2 is posted in the OP and according to another member who tested it for me touch is working as well as SD card support (though I would avoid formatting the SD card with B2 until I get my device back and not only verify SD card support but that the wiping bug is gone).
[Samsung Galaxy Tab A series Guides, News, & Discus] EdwardTCM:
Welp I installed TWRP B2 and the touch is dead lol but the SD card works
[Samsung Galaxy Tab A series Guides, News, & Discus] EdwardTCM:
Yeah, I just saw lol and the SD Card does work lol weird that the touch isn't working for me?
[Samsung Galaxy Tab A series Guides, News, & Discus] agreenbhm:
Huh, interesting. Touch is the first thing I'll be looking at again when I get my device back. Stay tuned for more updates.
[Samsung Galaxy Tab A series Guides, News, & Discus] EdwardTCM:
Alright Thanks
[Samsung Galaxy Tab A series Guides, News, & Discus] Sift:
Thank you for your work but I'm currently having bootloop after flashing super.img. Any help?
[Samsung Galaxy Tab A series Guides, News, & Discus] agreenbhm:
You flashed it via TWRP to the super partition, correct? Did you format data also?
[Samsung Galaxy Tab A series Guides, News, & Discus] Sift:
Yes super partition. Format data through twrp after flashing it?

EDIT: Format after flashing gapps or format first then flash gapps?
[Samsung Galaxy Tab A series Guides, News, & Discus] agreenbhm:
Yes, format data through TWRP.
[Samsung Galaxy Tab A series Guides, News, & Discus] _mone:
Just tested your Beta2 of twrp (something that I usually don't do) and touch is working. MTP is not working; as I have a "working" (no decryption) twrp from quite some time if you share your source I may can help you (if you're interested).

I have no intention on sharing builds or getting too much involved here on xda.. I own this device from a week before lockdown ended, I've managed to make a "working"ish twrp-3.5.1 and lineage-17.1 recovery (with fastbootd). Then I've started again to work so I've dropped the project to port LineageOS.. but if you're willing to share your source I may can help iron some bugs when I have time.

Didn't test your Lineage build (maybe I will), I still have to update to official 11 firmware.
[Samsung Galaxy Tab A series Guides, News, & Discus] agreenbhm:
Thanks for the reply. The sources can be found on the Github repo I made, which is here: https://github.com/agreenbhm/android_device_samsung_gta4lwifi.

My Lineage build consists of the 18.1 Lineage GSI as the system partition along with stock vendor, odm, and product partitions within the super image.
[Samsung Galaxy Tab A series Guides, News, & Discus] agreenbhm:
I thought of something else to look at: do you have a rooted boot image (made via Magisk) and did you come from the latest version of the stock firmware? Both things that are probably necessary for it to boot.
[Samsung Galaxy Tab A series Guides, News, & Discus] _mone:
Interesting.. I'll have a proper look in a few days.

Here you can find my initial trees: https://github.com/samsung-bengal

I've made more progress from that (like built from source kernel and dtb/dtbo and more), I'll push the latest changes I've made when I have time (hopefully I still have them).
[Samsung Galaxy Tab A series Guides, News, & Discus] Sift:
Yes. Rooted latest firmware. Might I add, I was able to boot into twrp beta 2 and touch is working, also able to boot into los prior to flashing super.img. After flashing super.img in twrp and formatting data I'm still getting bootloop.
[Samsung Galaxy Tab A series Guides, News, & Discus] EdwardTCM:
Yeah, I have tried TWRP B2 but it's still not working for some reason maybe I need to reflash?
[Samsung Galaxy Tab A series Guides, News, & Discus] Annonnimmouss:
I am facing the same problem. Touch is not working in twrp.
[Samsung Galaxy Tab A series Guides, News, & Discus] agreenbhm:
What version of stock ROM were you using prior to installing TWRP?
[Samsung Galaxy Tab A series Guides, News, & Discus] Annonnimmouss:
T500XXU3BUF3, Last update.
[Samsung Galaxy Tab A series Guides, News, & Discus] agreenbhm:
Ok, good. That's weird about touch not working. Are you on the T500 or the 505?
[Samsung Galaxy Tab A series Guides, News, & Discus] agreenbhm:
One other thought: if you flashed twrp b2 and then flashed Lineage with odin it will have overwritten twrp b2 with b1. Is it possible that's what you did? I'd try reflashing b2 if so.
[Samsung Galaxy Tab A series Guides, News, & Discus] Annonnimmouss:
T500

I haven't updated lineageos yet, just TWRP, I even updated lineageos, but as soon as I restarted, only the twrp screen appeared, so I went back to the stock ROM and updated the twrp beta-2 and besides the touch didn't work I had to reinstall the rom, but with csc home, as it only restarted in twrp.
[Samsung Galaxy Tab A series Guides, News, & Discus] Annonnimmouss:
Sorry, as I used google translator, the text must have been weird.
[Samsung Galaxy Tab A series Guides, News, & Discus] ogkillergreen:
Does this support root? Unable to get Magisk installed
[Samsung Galaxy Tab A series Guides, News, & Discus] glockmane88:
Is Widevine level is still 1 with this ROM?
[Samsung Galaxy Tab A series Guides, News, & Discus] oniyiiam:
Can I create more space with my SD card or move apps to my SD card? Sorry for the question but I am a newbie. (Haven't installed yet!)
[Samsung Galaxy Tab A series Guides, News, & Discus] husainr4444:
Thanks - after flashing and booting into Lineage OS I am unable to access the devices internal storage from my laptop.

Is this expected?
[Samsung Galaxy Tab A series Guides, News, & Discus] agreenbhm:
This is probably due to encryption. Try formatting userdata from TWRP and then booting into Lineage (which will be a fresh install, your data will be gone). Once I get my tablet back I will be troubleshooting encryption and seeing what we can do to make that better.
[Samsung Galaxy Tab A series Guides, News, & Discus] ogkillergreen:
Booted into LOS and flashed super image via TWRP successfully

Few issues though

No Internal Storage Access - Looks like encryption issues. Tried wiping/formatting data to no avail

Brightness Control - Cannot control brightness. Stuck on 100%

Root - Cannot install Magisk. Tried to flash the zip. Tried to flash rooted boot image. Root doesn't seem possible

Gapps - Cannot install Gapps due to storage issue. Used NikGapps and edited the config file. Install shows completed via TWRP, but does not actually install.

TWRP - Any kind of wiping/formatting action gives the error:

- "Failed to mount '/keydata' (Invalid argument)

- "Failed to mount '/keyrefuge' (Invalid argument)
[Samsung Galaxy Tab A series Guides, News, & Discus] JaneValley:
Finally! Thank you!
[Samsung Galaxy Tab A series Guides, News, & Discus] glockmane88:
Can please someone check if Netflix plays on FullHD? ATM I have unlocked bootloader and rooted stock ROM with safety net pass and I have Netflix @fhd but don't want to risk it.. Would love to try this ROM..
[Samsung Galaxy Tab A series Guides, News, & Discus] agreenbhm:
Good news, my tablet should be back on Tuesday and I will be looking at continuing my dev work then.
[Samsung Galaxy Tab A series Guides, News, & Discus] agreenbhm:
IIRC, those /keydata and /keyrefuge errors are not indicative of a failed wipe. I'll be looking to see if I can get them resolved, but I know I saw those errors when wiping and the wipe still was good.
[Samsung Galaxy Tab A series Guides, News, & Discus] testman42:
I am interested in having LineageOS on my Tab A7 as well, so I will keep a close eye on this thread.
[Samsung Galaxy Tab A series Guides, News, & Discus] wesleyvanneck12345678:
is it planed to make a rom instead of a gsi as a rom have more support in my eyes and les bugs
[Samsung Galaxy Tab A series Guides, News, & Discus] agreenbhm:
No.
[Samsung Galaxy Tab A series Guides, News, & Discus] wesleyvanneck12345678:
so a semi gsi because the gsi it self is very bugy
[Samsung Galaxy Tab A series Guides, News, & Discus] agreenbhm:
If you are interested in a native rom you're welcome to try it yourself. What I have created meets my personal needs.
[Samsung Galaxy Tab A series Guides, News, & Discus] wesleyvanneck12345678:
well there are some issue with it mainly the rotations are wrong
[Samsung Galaxy Tab A series Guides, News, & Discus] wesleyvanneck12345678:
also are the rest of the libs from one ui 3.1? that might explain the bugs i got
[Samsung Galaxy Tab A series Guides, News, & Discus] agreenbhm:
The super.img contains the following partitions from the latest stock ROM (at the time of publication, so a couple weeks ago): vendor, odm, product. All libraries should be contained within those partitions. The super.img also contains the LOS 18.1 GSI in place of the system partition.

I don't really have much work product to share outside of what has already been shared on my Github or on the OP. TWRP was the part that took a lot of development/adjustments. LOS is just basically using some cli tools to replace the system partition within the super.img with the GSI. If you wish to look into the LOS bugs you've identified then you already have all of the tools to get started. I'm still waiting on my device to arrive sometime today so once I get that back I will be looking at a few things, but only things that are show stoppers for me.
[Samsung Galaxy Tab A series Guides, News, & Discus] agreenbhm:
I received my tablet back yesterday (thanks for repairing it under warranty Samsung). I flashed the TWRP beta 2 on it and touch did not work for me. It seemed like it was hit or miss for others so I created a new build with the latest kernel and drivers (from the update that ends 3BUF3). Touch worked on the new build for me, so that's cool. I'll post it as Beta 3 later. You still cannot access the encrypted internal data (and I'm not sure how to fix that) but SD card support is working (and it won't destroy your device like it did to me the first time...)

I also created a new build of LOS as a super.img file with the latest vendor, odm, and product partitions. It allows for flashing the "Omni" version of NikGapps. I'll be posting that later too.

The process (from a stock tablet) is this:

0. Update tablet to latest stock ROM (as of this writing, which ends with "3BUF3")

1. Unlock bootloader

2. Flash vbmeta disabler via Odin userdata slot

3. Flash TWRP via Odin AP slot

4. Boot to TWRP

5. Format data partition then reboot back to TWRP

6. Copy LOS super.img to device (helpful to have an SD card formatted as ExFat or EXT2-4 for this, but you can copy to the internal storage if necessary)

7. Install super.img to super partition (using "Install Image" option in TWRP

8. Copy NikGapps Omni to device if wanted and install ZIP via TWRP. Make sure you have a nikgapps.config file in your /tmp folder that specifies that it should install to the system partition rather than product.

Note: you don't need to install Magisk or do anything with the boot image, but you can if you want to, though as of now I'm not able to invoke su as expected (despite it being there).

As far as bugs go, I'm only aware of brightness not being adjustable (I'm looking into that) and internal data not being accessible via TWRP after encryption (not sure I'll have a solution for that; the workaround is use an SD card for accessing stuff via TWRP).
[Samsung Galaxy Tab A series Guides, News, & Discus] agreenbhm:
New builds are uploading now. I have also figured out a way to get Magisk working (though it requires a few commands to be run manually from the TWRP cli). Those instructions will be posted along with the new builds.
[Samsung Galaxy Tab A series Guides, News, & Discus] wesleyvanneck12345678:
to disable encription for now https://xdaforums.com/t/universal-dm-verity-forceencrypt-disk-quota-disabler-11-2-2020.3817389/
[Samsung Galaxy Tab A series Guides, News, & Discus] wesleyvanneck12345678:
for brghtness issue you might need to craete a vendor overlay https://xdaforums.com/t/guide-how-to-make-gsis-overlay-file-for-your-phone.3878974/
[Samsung Galaxy Tab A series Guides, News, & Discus] ogkillergreen:
Wifi does not work in new super.img build. Does not turn on
[Samsung Galaxy Tab A series Guides, News, & Discus] agreenbhm:
Wait for the new update which will be coming later today. I'm not supporting the older builds anymore. Wifi is working fine for me in the new one that is being uploaded.
[Samsung Galaxy Tab A series Guides, News, & Discus] oniyiiam:
Is widevine supported? I want to watch Disney+ with my little cousin. :)
[Samsung Galaxy Tab A series Guides, News, & Discus] wesleyvanneck12345678:
when do they release its a day later for me :P
[Samsung Galaxy Tab A series Guides, News, & Discus] Annonnimmouss:
Can I use the same Super.new.img you @agreenbhm use in lineageos in other roms to support gapps?
[Samsung Galaxy Tab A series Guides, News, & Discus] wesleyvanneck12345678:
no you cant that will overwrite the rom
[Samsung Galaxy Tab A series Guides, News, & Discus] agreenbhm:
As someone else said, you can't use it with other ROMs because it will overwrite it. The reason being that super.img is the ROM and a few other things, not just something making space for Gapps.
[Samsung Galaxy Tab A series Guides, News, & Discus] wesleyvanneck12345678:
when are posting the imges also did you get a sulution for the brighness bug
[Samsung Galaxy Tab A series Guides, News, & Discus] agreenbhm:
New builds are live in the OP as of 1 minute ago. Still working on the brightness thing (I had to stop mid-day yesterday for family obligations) but think I'm on the right path.
[Samsung Galaxy Tab A series Guides, News, & Discus] wesleyvanneck12345678:
if there is a way tu up it max brightness that woeld be fine for me
[Samsung Galaxy Tab A series Guides, News, & Discus] agreenbhm:
Creation of overlay was unsuccessful (compiled properly and is present in system, but no change). I did however identify the device on sysfs that is responsible for controlling brightness and can control it by echo'ing values to "/sys/devices/platform/soc/5e00000.qcom,mdss_mdp/backlight/panel0-backlight/brightness" from a root adb shell. That tells me we're close to a fix.