yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] natedogwoof:
i will explain but its hard to

I have linage OS the one from here and the twrp from here like this thread same exact versions here and I flashed in the correct order via ODEN but earlier I actednently formatted it so it was 8 gb allocated instead of the 32 GB storage and after that it told me to reflash official binaries so I did that and rerooted and reinstalled everything I had this device rooted for a long time with no custom OS but I had a custom recovery twrp and magisk I also changed the twrp version to this one, my sm-t500 had and what I mean is its stuck on the linage os boot screen when its booting up for the first time its not restarting its just been stuck there not frozen its doing the animation but I couldn't get into twrp from it so I used adb to do that I waited on the linage os first boot for 1+ hours I restarted to wait for another hour but it didn't work, when I tried the third time I used the logcat cmd from adb and after a while like lets say 20 or 30 minutes it said Logcat unexpected EOF! and said the device shut down logd crashed or it was unable to read the messages as the log produced and I was using twrp 3.7.0 sorry for the TMI or TLDR but i havethesuspision its repeating itself of what i read also i tried doing a basic wipe

i am wipeing evick ill see if that works
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lewmur:
At this point, your best bet is to start from scratch by downloading the latest stock ROM and flashing it with Odin. If you can still get to TWRP, it might help to format data and factory reset wipe, before flashing stock. If you can then boot stock, see if it solved the 8gb vs 32gb problem, That may be the heart of your problem.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] natedogwoof:
i will try that but i foundfatel errors in the log so ill decypher them first ill try to at leaView attachment 5970823st

fixed i had to do a full format

but now it cant find wifi networks andthe brightness is high but it says how-to fix that and how do i get dev mode
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lewmur:
Even if you could diagnose what going wrong, how could you fix it? The problem has to be with the steps you took in installing and that can only be corrected by starting over and not making the same mistake. I can tell you now that trying to use adb commands on a Samsung tablet, isn't going to work.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] natedogwoof:
I fixed it anyway but now I'm trying to fix the no brightness slider no sound and wifi issue but thanks

i flashed the brightness.sh bur then i flashed the gsi samsung t500 file now im in bootloop but i can still access twrp

and i have no cle on how to fix ima think ima try to fix it and restore to stock and try again tommarrow
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] TMW1996:
So i Flashed this on my Tab A7 and my tablet wont turn on anymore. My Pc shows only qloader what am i supposed to do ?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] omercicek43:
I did these but I feel like it only increased the volume. This is how it should work, right?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] oakvx:
wifi switch not working
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] hhdev:
Great work. It works fine. I just have two questions:

1. Using the update instructions using lineage-19.1-20230715-UNOFFICIAL-arm64_bvS.img I end up in a samsung logo boot loop. Am I missing something?

2. Is there a way to remove GApps from the install. I would really like to be without any google stuff.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] hhdev:
Happend here to. I needed to change the FW to the mentioned version (SAMFW.COM_SM-T500_EUX_T500XXU3BVB3_fac) before install. Then everything worked including wifi.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Iriddious:
hi, I really hope someone can help me on this, as I am new to installing roms, using odin and stuff.

I completed the steps well until number 6, where I don't know how to flash, run or install the fix_brightness.sh file. They mention doing it with TWRP, but I don't know exactly how to do it there. Can someone help me? : ,)
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lewmur:
If you look at the date in the OP, it is pretty old. And those instructions are written for Linux users. My best advice is to install LOS 20 instead of 19.1 and you won't have the problem. If the fixbrightness is needed at all, it will be a zip file you can use the Install button in TWRP to flash. Check in the Guides section for Android 13.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] hhdev:
I think you are referring to fix_brightness.sh.

This is what I did:

adb push sm-t500_fixes.sh /tmp

Enter an adb shell

adb shell

Change directories and set permissions

cd /tmp

chmod +x /tmp/sm-t500_fixes.sh

Run script

/tmp/sm-t500_fixes.sh

C:\Temp\SM-T500\Lineage\install>adb shell

127|gta4lwifi:/ # cd /tmp

gta4lwifi:/tmp # chmod +x /tmp/sm-t500_fixes.sh

gta4lwifi:/tmp # /tmp/sm-t500_fixes.sh

Then you should see this:

Mounting /system_root

Adding brightness fix

Done
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] help12211:
I'm having trouble on the internet does not recognize any wifi network
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] oakvx:
you need to wait until they release a version for your bootloader version or try to downgrade
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] natedogwoof:
back after awhile for attempt no 2 i flased my own gsi patched my boot.img from the srock rom with linage os but then i get the linage os smiley and after 3 or 5 seconds my tablet crashes and it is in a bootloop
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Eshan123:
hi, im new to custom roms, i done all steps but whats the shortcut for opening twrp menu, it doesnt seem to wrok for me
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lewmur:
Look in the "Guides" section for something more up to date. The one you quoted is way out of date.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] help12211:
eai has already launched

help
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lewmur:
Help with what? Warranty bit? It has been tripped but if the tablet is still in warranty, Samsung will still honor it unless something you install causes a problem.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] help12211:
it was when i went to install the rom on the T500 and then I gave up and blocked bootloader
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lewmur:
Before you can relock the bootloader, which is what I assume you meant by "blocked", you must first reflash the stock ROM with Odin. You can't do it with TWRP installed.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Eshan123:
hi , does anyone know a fix to the issue , magisik is in unsupported version. it only shows this in lineage os 19.1
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] msarvnann:
Hi Sir,

agreenbhm​

Saw you post and tried to install lineage OS but i dose not went correct and i ended up by trying different versions of Lineage OS and i made a mistake by flashing dtbo.img of another Samsung Tab and now TAB getting looped in dtbo error, i made mistake.

Can you please share dtbo.img for [SM-T500] Samsung Galaxy Tab A7 10.4..?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lewmur:
Sorry, but the only ROMs I've installed on this tablet are LOS 19 and 20.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] msarvnann:
Hi, Can anyone share me dtbo.img for [ROM][SM-T500] Samsung Galaxy Tab A7...? Please...
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] msarvnann:
Do you have dtbo.img..? if you have can you please share
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lewmur:
I don't understand what you are attempting to do. The image is included in the AP of the stock ROM. I'm pretty sure the only way to solve your problem is to re-flash the latest stock ROM.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Mohammed ali1:
whould this work on a sm-t505
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Jim in CA:
The other procedure you are looking at is a better bet. Assuming you are starting with a later version of the stock firmware, you are likely to have wifi issues with this one.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Mohammed ali1:
oh no i cant leave this downloading screen it says An error has occorred while updating the divice softwere
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Mohammed ali1:
does this mean its bricked? And how do i fix it
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Jim in CA:
Unplug the USB cable from your device. Try pressing and holding the power button and vol+ to get it to reboot (and likely to bootloop.) If that doesn't work, try power and vol-. Then press and hold the power button and both vol buttons, and plug the USB cable back in while still holding the buttons in. You should eventually be able to get back to the download screen. (Trial and error.)

Then try the 3.14.4 version of ODIN and load the latest version of the stock firmware. Once you can get the stock firmware to load, start over again. Set it up stock, Download Magisk and patch the stock AP file. Go back to ODIN and load the modified AP along with the stock BL and CSC files (not HOME_CSC.) I suspect you need to go back to completely stock as a starting point. If you can't do that you will likely be spinning your wheels.

I have no idea if there is someplace online to download the patched AP file. It was easy to do myself so I had no reason to look.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Mohammed ali1:
it says fail in odin can you send me the file of the patched AP if you can

<OSM> Enter CS for MD5..

<OSM> Binary Check MD5.. Do not unplug the cable..

<OSM> Please wait..

<OSM> Checking MD5 finished Sucessfully..

<OSM> Leave CS..

<OSM> Enter CS for MD5..

<OSM> Binary Check MD5.. Do not unplug the cable..

<OSM> Please wait..

<OSM> Checking MD5 finished Sucessfully..

<OSM> Leave CS..

<OSM> Enter CS for MD5..

<OSM> Binary Check MD5.. Do not unplug the cable..

<OSM> Please wait..

<OSM> Checking MD5 finished Sucessfully..

<OSM> Leave CS..

<OSM> Enter CS for MD5..

<OSM> Binary Check MD5.. Do not unplug the cable..

<OSM> Please wait..

<OSM> Checking MD5 finished Sucessfully..

<OSM> Leave CS..

<ID:0/006> Added!!

<ID:0/006> Odin engine v(ID:3.1100)..

<ID:0/006> File analysis..

<ID:0/006> SetupConnection..

<ID:0/006> Initialzation..

<ID:0/006> Set PIT file..

<ID:0/006> DO NOT TURN OFF TARGET!!

<ID:0/006> Get PIT for mapping..

<ID:0/006> Firmware update start..

<ID:0/006> SingleDownload.

<ID:0/006> abl.elf.lz4

<ID:0/006> NAND Write Start!!

<ID:0/006> Complete(Write) operation failed.

<ID:0/006>

<ID:0/006> Complete(Write) operation failed.

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

<ID:0/006> Removed!!
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lewmur:
What firmware are you attempting to flash? Exact version? You need to flash the latest version of stock before trying anything else.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Mohammed ali1:
it worked but now it keeps turning on and truning of fast keeps flshing the samsung logo whwen i try to put it in download mode again or fastboot mode it turn off when i diconnect it from pc it turns of and i tried hard reboot holding the power and the volume down button nothing happens
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lewmur:
I can't help if you won't do what I asked. I have no idea what "it" is that you claimed worked.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Mohammed ali1:
i followed your steps i have the latest version i used oden 14 the latest when it oden says pass it booted my device after that i cant take my device out of bootloop
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lewmur:
You still didn't answer my question. What version? I want the last 4 digits of the version number. Not just "the latest". If you flashed BL, AP and CSC of the actual latest, then there is no reason for a bootloop.

To get out of the bootloop: https://xdaforums.com/t/how-to-get-to-download-when-your-device-wont-turn-off.4663655/
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Mohammed ali1:
i dont get it if you want the name of my tablet it sm-t505 i flashed the CP by accident
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lewmur:
I don't care about your tablet number, I want the version number of the stock ROM you flashed. And flashing the CP wouldn't cause a bootloop for a 505 model. That is just the LTE modem firmware. Number should look like this T505XXS7CXB1
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Mohammed ali1:
T505XXS7CXB1
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lewmur:
Did you flash the original AP or the modified AP?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Mohammed ali1:
normal its not modifid i got it from this link https://samfw.com/firmware/SM-T505/BTU#google_vignette
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lewmur:
Where are you located?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Mohammed ali1:
united kingdom
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lewmur:
That is the right firmware. No reason it should bootloop unless the file was corrupt. I'd try downloading it again.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Mohammed ali1:
it takes very long
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lewmur:
What choice do you have? If flashing stock firmware doesn't work, then I don't know what will.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Mohammed ali1:
what do you mean?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Mohammed ali1:
how caan i

how can i even enter the bootloader
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lewmur:
By following the direction in the link I posted.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lewmur:
I mean exactly what I said. If flashing the latest stock firmware doesn't fix the bootloop, then I don't have any idea what else to do. Maybe someone else does, but I don't.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Mohammed ali1:
dosent work my one is different when i plug it out of the pc it turns off as if it needs battery or something but i have charged it and when i do the unplug and press the power and the vlume down nothing happens
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lewmur:
If it is really off, then hold both vol up and down and then plug in the cable. Keep holding till teal screen appears. If that doesn't work, then do the same thing again but once the cable is plugged in, keep holding up and down and then press the power button too.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Mohammed ali1:
i dont know how to thank you but i left it and after a while it put me in recovery mode where i factory reseted it and it booted and its asking me to set it up
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Mohammed ali1:
i dont know now if to carry on and flash twrp but the thing is i messed my device because of that youtube video so dont want to use youtube again it would be better if there is a step by step article thats for my device on xda
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lewmur:
I don't think there are any instructions that will work. All of the available downloads are based on an earlier versions of the stock ROM and won't work with the current version. And you can't revert to an earlier version. If and until someone develops one for the current version, you are just out of luck.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Mohammed ali1:
so i cant do ANYTHING not even root or download something like other then twrp or anything
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Mohammed ali1:
would this work if i follow it
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lewmur:
You should be able to root with Magisk, but there are two different ways to do it. One is to patch the entire AP file and flash it with BL, and CSC and the other is to extract the boot.img from the AP file, patch it and then tar the modified file and flash it by itself from the AP slot. But it has been so long since I've done it on this tablet that I don't recall which method works. You'd have to search back trough the treads to find out which to use.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Mohammed ali1:
cant i use this way or is it different to mine
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lewmur:
I don't know. That's the point. Some Samsung tablet use that method but others require extracting the boot.img. It is because the AP method modifies the vbmeta.img as well as the boot.img and that doesn't work on some models. If DJB was referring to this specific model, then it should work. But it was a general instruction and not specific, it might not.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Mohammed ali1:
updating you about the sm-t505 i manged to get twrp on it
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lewmur:
Well, that changes every thing. You can flash Magisk from TWRP without needing to modify the AP or boo.img, in order to root. You can also use fastboot from TWRP to flash GSI ROMs.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Mohammed ali1:
without the help and support you gave i wouldnt even get it fixt i have been trying to fix this for a week now and you saved me THANK YOU!
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] ljgjm:
Yes
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] zelvuc:
View attachment 6094153Hi there , I have attempted to install latest Lineage OS on SM-T500 from Lineage site today,.I get error " this phone has been flashed with unauthorized software" I was late in reboot after flashing and tablet went to stock recovery again ( my fault ). HELP boot-loop .. but I flashed then with latest factory firmware from samfw.com and day was saved ( for a moment ) . Haw to avoid same / similar error again ? Anny major issues with lineage 21 ?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lewmur:
Without knowing HOW you attempted to flash it or what you had installed prior to flashing, I have no idea what's wrong.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] zelvuc:
hi thanks for interest I follow this guide https://wiki.lineageos.org/devices/gta4lwifi/install/#pre-install-instructions
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] zelvuc:
I attempted again flashing now but flashing of AP file failed in Odin ( which works ok ) , on Tablet I get this error message.

Only official released binaries are allowed to be flashed (vbmeta )​
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lewmur:
Flashing of WHAT AP file????

There are a bunch of steps in that guide. I need to know what stock ROM you are starting from, EXACTLY what steps YOU took, not what the guide says but what you actually did. What vbmeta.img you tried, what TWRP you tried and what LOS file. And by that I mean the full file names and ext not just "LOS 21".
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] zelvuc:
after VBMeta .tar flash and reboot Samsung calls home and block my device . Device is connected to wifi and blocking appears.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lewmur:
Again, there are a bunch of vbmeta.img files. Where did you get the one you tried? I just successfully extracted the one from the lineage-21.0-20240416-nightly-gta4lwifi-signed.zip file and worked fine.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] zelvuc:
Everything is from lineage-21.0-20240416 https://download.lineageos.org/devices/gta4lwifi/builds
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lewmur:
That is the correct file and I know it works because I flashed it again just a couple of hours age. So it has to be something you did or didn't do that's the problem. Start of from scratch by flashing the stock ROM, reboot, connect wifi, skip setup, re-enable Dev mod and OEM and then flash vbmeta.tar via Odin. But instead of booting to system after flashing, boot to recovery and factory reset. Then boot to system and see if it works.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] zelvuc:
Hooray ! with patience all went well , it important to follow this guide and remember to uncheck autoreboot in Odin. Not to reboot in system in step 3 . To get stock firmware go to site Thanks for support :)
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] zelvuc:
Can I re-lock boot-loader now, would that affect further Lineage updates ? It`s sad that Lineage recovery dont support nandroid backup. That would be great function.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lewmur:
No. Not with root. You can only relock with unrooted stock ROM installed.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] ljgjm:
You can change your serial number using samfw tool. (pc required) Try that
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lewmur:
The problem was solved.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Mohammed ali1:
Is it possible to get rid of the cast signal next to the internet when you scroll down you see it in red when you connect your phone to a different phone it comes when you screen share if there is anyway please let me know (with out root) if possible I can use settings database editor to like edit it out of the system or any other ways I will leave a photo View attachment 6097866
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Mohammed ali1:
i unrooted and i tried to reroot and the same error came up An error has occured while updating the device software when i try to reflash the AP BL CP CSC again but when i do that it says fail! i dont know what to do i cant remember how did i do it last time

posting it from a SM t505
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Hey doggie:
I have been through this entire thread. I have the newest version of stock rom on my tablet. If I am understanding correctly I would only have to download your TWRP, then download and install the newest gsi? It seems I would not have to bother with the brightness fix (?). How about the meta disabler?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Hey doggie:
Shoot, never mind, should have noticed it right away. Feel pretty stupid but it's not the same build number.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Jim in CA:
There is also an official Lineage OS for the SM-T500. Currently Lineage 21.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] agreenbhm:
No, this is his GSI built into a package to install on this device.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] mystifuzz:
Ah, alright. 👍🏼
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] NeilR2:
Thanks for putting this together for us! The A7 has a lot of potential and it's nice to see it hasn't been forgotten.

Just wondering if anyone is still experiencing the performance issues that GSI had on this device before. I remember the tablet would come to a complete standstill when I would have 2 or 3 tabs open in Chrome. For that reason I had to revert to stock in the past.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] mystifuzz:
Well, today my tablet froze while having YouTube and Discord open together forcing me to restart. I don't think much has changed yet.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] NeilR2:
That is a shame, because otherwise the GSI roms are nice and snappy on our devices. Pardon my ignorance on the subject, but do we know what is needed to solve the performance problems? Is it kernel related?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] agreenbhm:
I've got some time free the next few days and am going to look into the possibility of natively compiling LOS rather than using the GSI. No promises but I'm gonna try. I don't actually use the tablet for anything other than development so I don't really run into long term stability issues since I'm not using it enough.