yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] 4929york:
You can't install a custom ROM without an SD card. You have to FORMAT the data partition and that erases EVERYTHING. And format is NOT the same as wipe. BTFN is the latest version of the Samsung stock ROM and is now the version custom ROMs are based on. You have to have TWRP for that version to flash the latest zips. Read this thread https://xdaforums.com/galaxy-tab-a/development/twrp-custom-roms-based-btfn-t4173895

The problem you are having with flashing isn't really that the file isn't downloading properly. What version of Odin are you using?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] rw_on_xda:
The first sentence is - for me taste - *invalid* :cool:

I flashed the Rom *without* an SD card (with ODIN v3.14.4 or v3.13.3)

SD card wasn't necessary.

[MENTION=5349270]jaladhjin[/MENTION]

here is ODIN 3.14.4

https://dl2018.sammobile.com/Odin3-v3.14.4.zip

md5sum is: 92a923998bd483cd3582f9c5b2bc5e49
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] 4929york:
You can flash a stock ROM without an SD card, and you can flash a custom ROM with Odin. But when you flash a custom ROM that way, the data partition is un-readable because it is encrypted. The ONLY way to get rid of the encrption is to FORMAT the data partition. That is pure and simple fact and your denying it doesn't change a thing.

edit: If you had actually read enough of the threads in this forum, you would have found this mentioned many, many times.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] rw_on_xda:
I have already read enough of the thread to know - mostly - what I'm talking about ! :cool:

Proof ? :cowboy:

I've have never declared that I don't format the data partition.

I do it as the OP declared on the first page.

please start reading there !

he -btw- never mentioned the *necessity* of an SD card, that is the (cit.) "pure and simple fact"

otherwise, please provide the pointer to it :p
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] 4929york:
Never mind. You apparently don't want help but just to argue. But guess what? My tablet has the ROM working and yours doesn't.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] rw_on_xda:
aha !? :cool:

just scroll ~3 weeks back in the posts ...

additional look for the pointer to the sd card ?

EDIT

It's mostly better to accept one has been wrong then to insist of that mistake.

It won't help anyone, esp. your self.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] jaladhjin:
I was able to get it to work no SD.

Odin flashes can flash the rom as well.

The most recent issue was the download yes.

I appreciate the advice thanks.

If you're curious that tar.md5 can be flashed straight to the device with Odin.

What does BTFN stand for?

That's one thing that confuses the inexperienced the short hand slang.

---------- Post added at 04:08 PM ---------- Previous post was at 03:53 PM ----------

Thanks again for not only the rom but all your info & advice.

I try to not be one of the ungrateful expecting anything from a hobby labor of love :)

The main reason I even bothered to update was my Bluetooth was just awful on the April build.. constant disconnects & reconnects from my speaker in the same room but now it seems rock solid.

Since I didn't see it in your update notes was it a known issue & fix at some point or just a happy coincidence?

Thanks again for your efforts !
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Magendanz:
No, I hadn't been tracking the Bluetooth issue, but that could very well be an problem in the vendor partition too. I haven't noticed it on my Nexus build, which is my primary focus and everyday driver. Honestly, I just have a batch build process for LineageOS and it doesn't get a lot of testing or attention. It's basically just the GSI with a few hardware-specific fixes applied.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] rw_on_xda:
it's a naming scheme of the stock rom releases:

https://www.sammobile.com/samsung/galaxy-tab-a-101/firmware/SM-T510/DBT/

BTH4 is the newest
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] jaladhjin:
If I ever decide to try the Nexus rom can I factory reset in TWRP & flash it from what was a LOS install or do I need to start over again with Odin?

I thought about trying stock rooted too but couldn't get the tablet to boot with TWRP in place.

Suppose stock rooted in a better question for general ha.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Magendanz:
You should be able to switch between LOS and Nexus builds with a TWRP flash, as long as they're based on the same OEM release. (Ideally, the same build, but really just the same OS version.)

Yeah, the Android 10 OEM releases don't play well with my TWRP builds. I just haven't had the time to figure out why, and the AOSP and LOS system partitions work fine.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] jaladhjin:
Thanks very much for the info :D

Uhmmm the only other thing I wonder about is even when I flashed back to Android 10 stock with Odin I never had to reunlock my bootloader & haven't ever flashed that multidisabler again either but am on your latest LOS rom & rooted without issues.

Does that stick from my android 9 activities or am I making some mistake?

Everything works /shrug
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lewmur:
Is there a gapps that works with this ROM where the setup doesn't keep crashing? I tried pico and nano and can't get through setup with either one.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] max__b:
Hi Magendanz,

Thanks for your hard work.

Could you please share steps to compile our own build ?

In my case, I would like to customize things like the lineageos OTA URL and other things that require me to make the changes first and then to compile the build.

Thanks
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] rspkt:
Just got a new Galaxy Tab A (SM-T510) and installed this with no issues. Thank you very much for bringing such a fantastic ROM to our devices. I can't imagine using this thing without it. Cheers!
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] reynabr:
I have only one issue, the bluetooth lag input with mi xbox one controller, in the Stock ROM I don't have this problem. Any solution for the lag? Sorry for my English
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Zippy Dufus:
I'm interested too:

Incorporating Generic System Images (GSI) into this ROM.

Building the kernel with my GCC Linaro compiler build.

Keeping the ROM up-to-date.

At one point, I did get as far as building the GSI and am wondering what to do next.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] galoneta:
Hi Everybody.

I am having trouble using TWRP from this rom.

What partitions do I have to make backup so I can recover when needed ?

I made backup from all partitions available and now I made a recover and tablet keeps restarting to TWRP, with no LOS loading!

Is there any aditional setup besides partition recover when using TWRP from this exactly rom to the same tablet?

Thanks.

In time: just to explain my initial flash sequence: flashed rom using odin then using TWRP flashed opengapps and later magisk 20.4 with TWRP, then made a backup of all partitions. Made WIPE of all internal partitions and then tried to recover this backup then tablet keeps restarting to TWRP.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] galoneta:
In time: FIXED!

The problem: I could not get functional recover from TWRP backups!

Solution: Made backup only for Boot, System and Data. Power OFF. Restarted in TWRP. Made factory reset. Recover previous backup then results in functional LOS even with root by Magisk (applied previously / patched to TWRP image).

Thanks.

---------- Post added at 05:25 PM ---------- Previous post was at 05:20 PM ----------

Dear Magendanz,

Thanks for this updated ROM.

I am still testing the latest build. One possible bug I have found is the reset of the device whe connecting to windows pc and enabling file transfer on the device.

Will report here if I find anything else related.

Thanks again.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] rw_on_xda:
care to test sound output ?

problem:

if I play sound and the lock screen kicks in, sound output gets ~stuttering~.

on your device too ???
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] galoneta:
Hi rw_on_xda.

Tested sound playing some netflix movie, locked screen with movie still playing, movie stops, unlocked screen, movie plays with normal sound.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] rw_on_xda:
[MENTION=3191427]galoneta[/MENTION], thanks for testing.

curious, I (too) can't reproduce this "bug" anymore.

there is only a reboot between first occurance and now.

my bad, sorry for the noise !
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] jaladhjin:
[MENTION=903232]Magendanz[/MENTION] when I upgraded to 10 with Odin & re-flashed your newest ROM I never re-flashed Multidisabler but everything seems to still be working.

Does whatever that did persist from my old flashes when I started with the Android 9 rom ?

Even after the Odin flash of a non-custom Android to get me upgraded to 10 ?

I was waiting for something to break for not re-flashing Multidisabler again but all seems well.. strange..
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Magendanz:
Multidisabler is baked into all my Samsung custom ROMs. There's no need to reapply.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] seamo123:
Is there a navbar toggle anywhere on this ROM?

It's either missing or really well hidden! ☺️
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] riverstyxxx:
Yet another bug has been found: When using Discord's call feature, it completely kills all audio for the tablet until rebooted. This applies to the 7/13 build because as reported earlier, the latest one doesn't even move past the initial boot sequence.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] jaladhjin:
Just out of curiosity what would happen if it wasn't flashed or otherwise enabled via your bake in ?

If a person flashes a root package before booting the rom.. nothing ?

---------- Post added at 06:03 PM ---------- Previous post was at 06:01 PM ----------

I disagree.. I'm using the 20200812 build.

It definitely was an ordeal to get it loaded but honestly that's our problem he & the people in these thread are just not spoon feeding us easily flashable installs every time because sometimes they can't.

As I understand it & what worked for me was you've got to flash back to official & upgrade to Android 10.

Then re-flash that newest build with Odin.

---------- Post added at 06:04 PM ---------- Previous post was at 06:03 PM ----------

It's not in the rom no.. my favorite way to do it used to be with the build.prop tweak but #1 it requires root & #2 I think it has been phased out over the past several versions of Android.

If you want to try it though the build.prop tweak is

qemu.hw.mainkeys = 1

And to that I'll offer you this warning.. if your next question(s) are okay what is build.prop where do I find that & where do I put that line of code I'd highly advise not going that route.

Since messing with your build.prop in unknown / unreliable ways can cause you to not boot.

Truthfully if you haven't ever tried https://play.google.com/store/apps/details?id=com.xda.nobar that's how I hide mine now & I actually kinda like their pill.

Or I'll just hide the pill & use Pie Controls..

Oooor occasionally both.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] piro.lito:
Hello guys,

i'm a bit noob on this kind of stuff but i will present you my scenario and i will ask you if anything can be done to improve my problem:

Of course i have the T-510 tablet with this ROM installed.

I'm trying to setup this device to use in my car project and so far i have like 90% setup done.

My current issues are related to the boot time.

I have modified the build.prop with quickpower on and boot animation disabled and it really improved the boot time about 12 seconds but now i have the issue of the

Unlocked Bootloader warning screen that has a delay of 10 seconds!!!!

Can this be disabled? Removed? Can the delay time be changed?

Any thoughts on this?

Really need help to solve this thing.

Thanks in advance guys.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lewmur:
Simply press the power button again when the warning screen appears. Or, just keep holding the power button, as you turn it on, till you see the screen flash.

Can you give a full explanation of how to modify the build.prop?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] faheyd:
Will that 'permanently' fix the 'warning'?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] 4929york:
No, it merely bypasses the ten second delay and only means holding the power button down a couple of seconds longer. It's the price Samsung makes you pay for unlocking the bootloader. The devs have tried and failed to find a way to disable it.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] mrlaugh01:
[MENTION=903232]Magendanz[/MENTION] FYI installing the latest build (20200812) on my T510, I had to use TWRP’s terminal and execute:

mkdir /cache/recovery

The ‘recovery’ folder did not exist, and TWRP failed when installing the ZIP.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] piro.lito:
Hi,

about the build.prop i just added the following lines in the end of the file:

logcat.live=disable

ro.config.hw_quickpoweron=true

debug.sf.nobootanimation=1

Save file and reboot.

With the quickpoweron i think when shutting down it will keep in a kind of hibernate state and it will boot a bit faster.

But since i'm using it in my car i would like to have the bootloader warning delay removed...

But i believe we can't do anything about it.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] robertozombie:
Hi [MENTION=4464707]piro.lito[/MENTION],

I'm also using the tablet for my car, I'm using the android app "hybrid assistant" to monitor several parameters while driving.

I'm still deciding which custom ROM to use, could you please tell me if your tablet turns on and boots to android automatically when you turn on your car? if yes, does it boot with root privileges?

I ask because I want to use a power off shortcut (that requires root) instead of pressing and holding the power off button.

Thanks in advance

Roberto
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] piro.lito:
HEllo,

yes, my tablet boots automatically when i turn on my car.

I had to change the file: /system/bin/lpm with this content:

#!/system/bin/sh
sleep 5
/system/bin/reboot

I have root and yes i'm using this ROM.

I also use macrodroid to automatize all the stuff.

What i do is when i turn off the power it will pause media, turn on airplane mode, disable gps and turn on power saving mode.

I wait for 60 minutes and then if i don't turn on power again it will shutdown.

I'm doing this because sometimes i turn off the car for a few minutes and this way it will start quickly instead of the normal boot.

Hope it helps.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] robertozombie:
it did, thanks for your kind reply, I'll follow you advice :)

don't know if I can post the following here since it might be off topic, if it isn't I apologize and I'll delete it:

this app has been very useful for me, it might also be for you, it's called bootcontrol (https://play.google.com/store/apps/details?id=com.microntek.bootcontrol).

with this app you can set which apps you want to open when your tablet boots. you can also set it for every time your screen turns on.

so for example when I turn on my car, the tablet will turn on, but to android, and open this app to monitor several parameters, and when I do a short stop, instead of turning of the tablet I just turn leave it on and the screen goes off after 15 seconds of not being charged. when I return to the car and turn it on, the tablet screen will turn on (since it's being charged) and this app will open again.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] johnchaos:
Is this ROM compatible with T515?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] rw_on_xda:
on the first page in the first sentence it says clearly: SM-T510

on the other hand: I could imagine that it will run, but without LTE

- assuming T515 is an "T510 plus LTE" -
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] johnchaos:
I'll give it a try and test what happens. :)
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] robertozombie:
[MENTION=4464707]piro.lito[/MENTION]

magendanz wrote this on the Nexus thread, this might be interesting for you and me.

don't know if this is applicable to the LOS ROM:

"I spent a few days experimenting with this when working on the cold charging fix. While I could get it to boot "normally" when the charger is connected, the kernel was still disabling the touch screen in LPM mode. So, this is possible, but would require kernel modifications. (Note that LPM does bypass the bootloader warning delay, which I'm sure you would appreciate.)"
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lewmur:
You never reported the result of trying, but my guess is that it didn't work. Wifi only ROMs seldom, if ever, work on LTE tablets.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] robertozombie:
Hi [MENTION=4464707]piro.lito[/MENTION] I installed the Nexus based ROM also from Magendanz and I'm trying to change the file: /system/bin/lpm but once I am at the /system/bin directory, when I try to edit the lpm file using vim, nano or vi I get a "vi: inaccessible or not found" error message, could you please tell me how to edit lpm file?

I was able to create a copy of lpm named lpm.orig on the same directory just in case I want to revert back to the original

I have root access and installed busybox and termux on the tablet

Thanks
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lewmur:
If you have the Nexus ROM installed, I assume you also have TWRP. Just use /Advanced/File Management in TWRP to edit the file.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] robertozombie:
Thanks [MENTION=4034185]lewmur[/MENTION], that is correct, I have TWRP, didn't know I could edit file using TWRP, that is indeed quite a useful tool.

Will report back with results.

---------- Post added at 10:02 PM ---------- Previous post was at 09:46 PM ----------

I mounted System partition in TWRP so I could access /system/bin directory using the Terminal inside TWRP, but I don't know how to edit lpm file.

I tried vi lpm, nano lpm and vim lpm but all of these say "not found" :/

With File Manager inside TRWP I can only copy file, move, chmod 755, chmod, delete and rename file

Any help is more than appreciated
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] robertozombie:
After some days of searching, I was able to install nano on the tablet so I could edit the file directly using Termux.

Then I was having trouble writing to /system/bin , so I had to mount " / " so I could write into it.

mount -o rw,remount /

I had to add su to the file (see second line), otherwise the Tablet would boot into recovery after connecting the USB cable with the Tablet off:

#!/system/bin/sh
su
/system/bin/reboot

After this, the Tablet boots into android after connecting the usb charger :D

The only thing is that I am still getting the unlocked bootloader warning message, will investigate.

If anyone is interested, please let me know.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] piro.lito:
To change the bootloader waring message you need to go to the original bootloader from stock ROM and extract the param.bin file, edit the images with the warnings and then repack again the param.bin and flash it in AP with Odin.

However, the 10 sec delay is not possible to remove.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] robertozombie:
you can save 5 seconds if you remove the "sleep 5" line. if it reboots to recover, replace it with "su"
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] heubert:
No voice via bluetooth speaker during calls - how to debug?

Hi folks,

I successfully installed the unofficial LineageOS 17.1 to my Galaxy tab A and everything appeared fine so far (thanks!!), including Skype calls. Now I want to connect a Jabra 750 conference speaker via bluetooth to the tablet and use it as microphone and speaker during Skype calls. Unfortunately this does not work.

Establishing the bluetooth connection between tablet and the speaker works. Playing music works as well. Making calls via Skype? Does not work. During the call everything is silent. I cannot hear the others talking. Strange is that I can hear the typical "Skype end sound" when hanging up. But no voices at all during the call.

While searching for solutions I came along a multitude of possible problems, from codecs to A2DP offload options to build.prop settings to mismatching kernels - but I honestly don't know where to start looking for my issue to decide which fix is the right one. Note: the same Jabra speaker is working fine when BT-connected with a Xiaomi Poco F1 smartphone running the official LineageOS 17.1.

I'd appreciate any hint on how to debug this issue. Thanks.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Zippy Dufus:
I'm having the same issue of no sound with the Hangouts Dialler app phone calls.

The microphone is working fine, though.

I suspect that it is trying to use the nonexistent sound device for the phone. This is the Call volume device seen in the Sound settings,

A solution would be greatly appreciated.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] K1mbo:
Stuck at loading

So I unlocked bootloader (I get the unlocked bootloader screen on startup) then used odin to flash the AP file, all looked to go well then got stuck at loading screen (the line with the dot moving back and forth). So at this point i thought maybe something went wrong so I booted into TWRP mounted and flashed the .zip file and proceeded to do system wipe/data wipe and reboot. Same thing, stuck on loading screen, been about 20 minutes now. Anyone have any ideas? thanks
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] heubert:
I tried the AOSP version from phhusson and it

doesn't

work there as well. I also tried other Bluetooth headphones and they

don't

work as well. Should it just be bad luck with this tablet?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Magendanz:
New release posted...

Downloads:

lineage-17.1-20201121-UNOFFICIAL-T510XXU3BTH4.tar.md5 (Odin tarball)

lineage-17.1-20201121-UNOFFICIAL-T510XXU3BTH4.zip (TWRP update)

Build archives:

Android File Host

Change Log:

20201121:

Based on the latest build of LineageOS 17.1 GSI (20201114) with November 2020 Security Patch.

Updated to the new Android 10 OEM kernel and vendor partition (T510XXU3BTH4).
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] elderpanda8:
64-bit or 32-bit OS?

Hi,

Is this custom OS a 64-bit or 32-bit version? Interested in using this to play 64-bit games.

Thanks
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Magendanz:
Until Samsung releases a 64-bit vendor partition (or someone migrates a 64-bit vendor partition from another Exynos 7904 device), this tablet will only support ARM32.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Andyk969:
I flashed all 4 versions now because in all latest builds show the SD card as damaged and wants to be formated but after that it still shows damaged. Only the older build 20200807 AQ worked fine with any SD card. I tried several different cards but with all the same. I am the only one with that problem or is there a workaround to solve that problem? thx in advance.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lewmur:
Have you tried installing the Infinity kernel?:fingers-crossed:
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] elderpanda8:
Thanks so much for the quick response! Will look at other alternatives for my son after the latest Pocket Camp update stopped working on his tablet that he just got in the summer.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] rw_on_xda:
Isn't "Setting" => "Display" => "Advanced" => "Wake on plug" your friend ?

- just checked -