yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy Tab A series Questions & Answers] Angelwind:
I love the T580. The screen is nice, speed is good, and though it has smaller storage it's livable.

So of course I want to break it. ;)

I'm willing to put in the time to try my hand at building LineageOS for it, but I'm not too familiar with the innards of the Tab A 10.1.

I try to get devices that can and will eventually be rooted for custom ROMs, but it seems the Tab A is falling under the radar.

If anyone has any tips on how to begin to build for this device, I'll start researching it on my off time. I'm finishing a semester of college with a paper and test coming up, but I could use something to take a break from it all. :)
[Samsung Galaxy Tab A series Questions & Answers] madalu:
I would love lineageOS on the galaxy tab A 10.1. I think this is probably somewhat more doable now that lineageos has been ported to exynos devices (S7)., though still rather difficult given the historic challenges of exynos processors.

I would start by checking out the development threads for the S7:

https://xdaforums.com/galaxy-s7/development/rom-unofficial-lineageos-14-1-galaxy-s7-t3529197

Also check out the exynos lineageOS repos:

https://github.com/search?q=org:LineageOS+exynos

I believe the SM-T580 has the 7870 octa processor, which hasn't (to my knowledge) been worked on yet.

https://en.wikipedia.org/wiki/Exynos
[Samsung Galaxy Tab A series Questions & Answers] madalu:
I also believe that the 2015 galaxy tab s2 had an exynos processor, and it has had CM/Lineage for a long time.
[Samsung Galaxy Tab A series Questions & Answers] lewmur:
Everytime Samsung adds internal storage, they also pile in more bloatware. I'm happy to add the storage I need with the SDcard.:rolleyes:
[Samsung Galaxy Tab A series Questions & Answers] Angelwind:
It looks like Samsung's new 2017 A series of phones will have the Exynos 7870 chipset, and they're testing for Android 7.0 now. Maybe when it's released we can get the device/vendor/kernel for it, as someone will probably work on getting Lineage to those phones.

Edit: Found a device and kernel github. Now all we need is vendor and we can do an initial build, correct?

Putting the githubs here for notes and comments on usability.

Device:

https://github.com/Siddhant-Naik/android_device_samsung_exynos7870-common

Kernel:

https://github.com/jony1512/android_kernel_samsung_exynos7870
[Samsung Galaxy Tab A series Questions & Answers] NinoBrown1911:
I'll throw my name in the hat for beta tester. I'm super excited to see AOSP on this beast of a tablet.
[Samsung Galaxy Tab A series Questions & Answers] lewmur:
Yeah, I've had a T810 and T710 and tried all of the custom ROM. Not a single one of them was fully functional. No mic, no bluetooth, no fingerprint, no Netflix or Hulu. The list goes on and on. One ROM will some fixes and another one, other fixes, but not one of them has all the fixes.
[Samsung Galaxy Tab A series Questions & Answers] fergiu:
sn-t585

Hi at all.

Have You some idea about SM-T585 ? Is it possible to acquire flash contents ? Is it possible to root it without lose anything ? Thanks :good:
[Samsung Galaxy Tab A series Questions & Answers] GamerTbg:
I can pull flash content, What do you need?
[Samsung Galaxy Tab A series Questions & Answers] fergiu:
Good, so You could help me ? I need to recover all flash contents without lose nothing. Could You tell me how I have to proceed to do this ?
[Samsung Galaxy Tab A series Questions & Answers] NinoBrown1911:
Should I stop checking this post every day and just give up hope?
[Samsung Galaxy Tab A series Questions & Answers] Angelwind:
Unless there's a way to pull the vendor files to at least try to start compiling, probably. I've been looking but I don't see anything popping up for this device.

I'm going to see what I can do when I have time next week to see if I can make my own vendor files. If I can get that going maybe I can make something work.
[Samsung Galaxy Tab A series Questions & Answers] Leon Lambra:
I don't know how any of this stuff works (I am just a huge cyanogen/lineage fan), but Android 7 is on it's way for the SM-T580 and maybe this will change things?

wi-fi.org/product-finder-results?keywords=SM-T580&op=Search&form_build_id=form-E2SKAR_pL0qT-lyXzsaO3tC2FxauQYig4_Bdh2ULq1o&form_id=wifi_cert_a pi_simple_search_form﻿
[Samsung Galaxy Tab A series Questions & Answers] Angelwind:
So I tried to compile LOS14.1 yesterday to no avail. I don't know if I'm doing it right and if the name of the build is mine (it shows #1 as full-eng, and the list doesn't include the board name build). I keep getting errors when it tries to build ninja saying it can't find "bacon", but did I mean "racoon".

If anyone has any experience building let me know what you do. The tutorials I've been trying to use aren't really set up for troubleshooting even when you follow them to the letter.
[Samsung Galaxy Tab A series Questions & Answers] Angelwind:
So Nougat is hitting the T580. Any one know how to pull the drivers and other needed files to make Lineage?
[Samsung Galaxy Tab A series Questions & Answers] Androidx86Fan:
I wouldn't just yet. I'm taking at shot at Android 7.1.2 for the Tab A (Exynos Wi-Fi). It's going to have to be AOSP:good:

Stay awesome,

Sam
[Samsung Galaxy Tab A series Questions & Answers] barul42:
Now this thread I'm gonna bookmark, I just became very interested!

Let me know if you need testing, I've got a couple of T580 I can run some tests on
[Samsung Galaxy Tab A series Questions & Answers] Androidx86Fan:
Wow! When I hear ? a few, that got me excited. I've found the kernel and binary source and soon my computer will be chugging along. This is my FIRST custom rom. Hope it works
[Samsung Galaxy Tab A series Questions & Answers] Androidx86Fan:
My sister actually has a SM-T580 but she won't let me do any testing on it. ROM should be ready this weekend. I'm going to need some help with testing.
[Samsung Galaxy Tab A series Questions & Answers] soaringowl2145:
Which Android version/ROM?
[Samsung Galaxy Tab A series Questions & Answers] Androidx86Fan:
Android 7.1.2 and then an upgrade to 8.0.0 after OpenGapps for it is released.
[Samsung Galaxy Tab A series Questions & Answers] soaringowl2145:
AOSP or Lineage?
[Samsung Galaxy Tab A series Questions & Answers] Androidx86Fan:
Both. Hopefully...
[Samsung Galaxy Tab A series Questions & Answers] lewmur:
I currently have two T580's so one is definitely available for testing.
[Samsung Galaxy Tab A series Questions & Answers] Androidx86Fan:
Cool! Is it wifi or cellular
[Samsung Galaxy Tab A series Questions & Answers] lewmur:
All T580's are wifi only. The model with cellular is the T585.
[Samsung Galaxy Tab A series Questions & Answers] Androidx86Fan:
OOPS. Sorry.
[Samsung Galaxy Tab A series Questions & Answers] SpaceAgeHero:
So which one are you developing for? You got my hopes high for the T580 WiFi model ...

Gesendet von meinem ONE E1003 mit Tapatalk
[Samsung Galaxy Tab A series Questions & Answers] Androidx86Fan:
It's the WiFi only model. No S-Pen
[Samsung Galaxy Tab A series Questions & Answers] soaringowl2145:
How is the development coming?
[Samsung Galaxy Tab A series Questions & Answers] PapaMooze:
This is super interesting. I would love to do some beta testing, if you need more helpers. How is the development going?
[Samsung Galaxy Tab A series Questions & Answers] Androidx86Fan:
Very very slow. I'm getting 15% into the build and it fails. Still trying to figure out how.
[Samsung Galaxy Tab A series Questions & Answers] J0SH1X:
bro im working on it its very likely that inital build will work i helped for s6 and just did the inital conversation stuff but kernel will need to be edited to work on oreo (thx to lukasb06 who will do it)

https://github.com/TeamNexus/android_device_samsung_gtaxl-common

https://github.com/TeamNexus/android_kernel_samsung_exynos7870

https://github.com/TeamNexus/android_device_samsung_gtaxlltexx

thats what i did till now but now im tired will work on tomorrow

---------- Post added at 06:02 PM ---------- Previous post was at 05:41 PM ----------

mybad i have the 585 so my stuff is for celluar one
[Samsung Galaxy Tab A series Questions & Answers] Shadowghoster:
Do the T580 and T585 kernels really differ that much? Because kernel (or boot.img) was the only thing needed to be exchanged when we wanted to run a T585 firmware on T580. Since both *should* have quite the same HW components [MENTION=8021125]Androidx86Fan[/MENTION] should be able to partially reuse your kernel source.
[Samsung Galaxy Tab A series Questions & Answers] tank0412:
Hey, i built LineageOS 14.1 build for T580.

Can somebody test it? Thanks.

https://drive.google.com/open?id=0B-Fin8UxrD6PN3duRU1rUHNHUE0
[Samsung Galaxy Tab A series Questions & Answers] Androidx86Fan:
HOW DID YOU DO THAT?

:confused::confused::confused::confused::confused::confused::confused::confused::confused::confused::confused::confused:

---------- Post added at 03:40 AM ---------- Previous post was at 03:39 AM ----------

It would be almost impossible because the SM-T585 has a Qualcomm Snapdragon [something]. The SM-T580 has a Samsung Exynos 7870.

MAAAAAAAAJOR DIFFERENCE :crying:
[Samsung Galaxy Tab A series Questions & Answers] tank0412:
It was very easy to build it. So can you test it?

BTW, T585 has a same Exynos CPU.
[Samsung Galaxy Tab A series Questions & Answers] Shadowghoster:
Are you sure that you are correct? When looking at gsmarena and other hardware specs sites there is always mention the exynos 7870 for both, the T580 and the T585, only difference listed is that T585 supports 4G while T580 is WiFi only.
[Samsung Galaxy Tab A series Questions & Answers] lewmur:
Hangs after the Samsung Galaxy Tab A screen goes blank. Doesn't reach the point where the word Samsung pulses on and off. Did full wipe and tried it with and without flashing gapps pico for 7.1
[Samsung Galaxy Tab A series Questions & Answers] noah110112:
Screen gets Black...

After flashing it successfully the screen goes black... I've waited for 10 Minutes but zero changes ...:(
[Samsung Galaxy Tab A series Questions & Answers] tank0412:
Thank you a lot. But can you get a logcat?

adb logcat -> logcat.txt
[Samsung Galaxy Tab A series Questions & Answers] noah110112:
I will do that tomorrow. I have to sleep now because I'm tired :D
[Samsung Galaxy Tab A series Questions & Answers] tank0412:
Can somebody test new LineageOS 14.1 build?

https://drive.google.com/open?id=0B-Fin8UxrD6PaHYxMHJUODdyOGc

Thank you.

This new build contains major changes.
[Samsung Galaxy Tab A series Questions & Answers] lewmur:
Downloading now.

edit: Still no cigar. Now it keeps looping from Galaxy Tab A screen to blank screen and back to Tab A.
[Samsung Galaxy Tab A series Questions & Answers] tank0412:
Dammed

It looks like i broke somthing and made things worse

Can you get a logcat?
[Samsung Galaxy Tab A series Questions & Answers] lewmur:
I'd need detailed instructions on how. I've only used Odin on this tablet and not adb, though I do have it installed on a Windows 10 box.

I've tried putting the tablet in download mode, connecting to the PC and typing adb logcat -> logcat.txt from the /adb

directory but it just says "waiting for device". And when I type adb devices, nothing shows. I was able to get a recovery.log via TWRP. Does it help?
[Samsung Galaxy Tab A series Questions & Answers] tank0412:
You must connect tablet to PC when it stuck or keep rebooting on OEM logo (Samsung logo,)
[Samsung Galaxy Tab A series Questions & Answers] lewmur:
Doing that now. Tablet is looping and I'm connected to PC and typed adb logcat -> logcat.txt. Still says "waiting for device".
[Samsung Galaxy Tab A series Questions & Answers] tank0412:
Well, maybe something wrong with drivers on your PC or adb is broken in my kernel. (actually it must work because i built rom in eng mode instead of userdebug)

Also if you want you can try new build which i made a minute ago:

https://drive.google.com/open?id=0B-Fin8UxrD6PWjlGUk1ENEJrSkk

Without logcat i am almost blind, but i am trying to figure out what is wrong.
[Samsung Galaxy Tab A series Questions & Answers] lewmur:
I can go to Advanced/ADB Sideload in TWRP and the PC sees the tablet, so I don't think it is the drivers. adb devices show a serial number sideload, in that mode. Will try the your new version now.

edit: I don't think the tablet is getting far enough in the boot process to load your adb module.
[Samsung Galaxy Tab A series Questions & Answers] tank0412:
I have experience in this.

Even if CPU/GPU/Keystore drivers are broken, logcat can be get anyway.
[Samsung Galaxy Tab A series Questions & Answers] lewmur:
Downloaded and installed this latest version. Still looping.
[Samsung Galaxy Tab A series Questions & Answers] Shadowghoster:
I also flashed the build and tried to get a proper logcat. It's just not possible to get anything from adb, since the device instantly reboots. The daemon can't even connect in the short time the system boots up. But I was able to get a kernel log, so I attached it. You can get it from /proc/last_kmsg or /proc/kmsg from within TWRP.
[Samsung Galaxy Tab A series Questions & Answers] tank0412:
Thank you a lot.

Unfortunatly i have never developed roms for Samsung and Exynos-based devices so maybe i failed due to it.

I hope that maybe one day skillfull maintainer will be able to boot LineageOS on this tablet.
[Samsung Galaxy Tab A series Questions & Answers] repey6:
Hi. Maybe you find your help or solution in the thread https://xdaforums.com/tab-s2/development . T815 T715 have exynos kernel too.
[Samsung Galaxy Tab A series Questions & Answers] tank0412:
Can somebody test new LIneageOS 14.1 build with major changes?

https://drive.google.com/open?id=0B-Fin8UxrD6PN3UzcXNxb3ZFa1k

Thanks.
[Samsung Galaxy Tab A series Questions & Answers] Shadowghoster:
Flashed fine (just as a note: the "detected file system ext4" message appears twice in twrp log for the same block device), but on boot we get a red message on top left saying "kernel is not seandroid enforcing", while the boot process sits at the GalaxyTab A6 logo. It should be possible to pull a proper log, but I don't have a computer here atm. I'll do it later today or tomorrow when I have time.

The tab will stay on the logo for some time and after that it directly reboots to recovery.
[Samsung Galaxy Tab A series Questions & Answers] tank0412:
Thanks.

I built a new build. Can you test it too?

https://drive.google.com/open?id=0B-Fin8UxrD6PTHZTRHh1eGpiSlk
[Samsung Galaxy Tab A series Questions & Answers] noah110112:
Doesn't work :/

I flashed the 10/15 V2 but after flashing without an error, i restarted my Tab and it showes nothing more than "Samsung Galaxy Tab A6 powered by Android"... :(

And on this Rom is no Loccat. Or i am too silly to read it out :D

Best greetings!

Noah
[Samsung Galaxy Tab A series Questions & Answers] Shadowghoster:
[MENTION=6283136]noah110112[/MENTION] you should always be able to pull the last kernel messages from /proc/last_kmsg via twrp file manager. Since it's likely that the rom currently crashes before the logcat module is available, this one should be the way to go until we get to a later point in the boot process :) [MENTION=5875920]tank0412[/MENTION] I'll test the most recent build tomorrow morning, I have some time before my semester finally starts again :D
[Samsung Galaxy Tab A series Questions & Answers] Oves786:
why arent u testing

if ur using nexus team trees it wont boot
[Samsung Galaxy Tab A series Questions & Answers] tank0412:
As i answered in PM to you, i use my own device tree.

But i compared my device tree and device trees by other devs. And i do not think that it has major differentces.

So can you tell me why it is so hard to boot LineageOS 14.1 on Exynos7870 ?
[Samsung Galaxy Tab A series Questions & Answers] Oves786:
well u ve just started now

we on my exynos 7870 j7 2016 working from 6 months havent booted yet

so what are ur some days

well join us here

link erased

just for u devs specfic group not for normal users
[Samsung Galaxy Tab A series Questions & Answers] lewmur:
From what I've read, what happens between the Samsung logo screen and the boot animation screen, is the Zygote init processes. I have a T580 running a custom Nougat 7.0 ROM. Would it help if I were to copy the files for that process?
[Samsung Galaxy Tab A series Questions & Answers] mitomanu:
HI all, I don't know where to post this, but I saw here are some guys who knows something about developing roms.

My question: I build for T585, I try :).

But I get this error:

firmware/gnss_firmware.bin.gen.S: Assembler messages:

firmware/gnss_firmware.bin.gen.S:5: Error: file not found: firmware/gnss_firmware.bin

But it isnot true: THE FILE EXISTS in kernel/.../.../firmware.

Any help?

thx.
[Samsung Galaxy Tab A series Questions & Answers] tank0412:
I guess something wrong with a path to firmware/gnss_firmware.bin.

So you should change it manually.
[Samsung Galaxy Tab A series Questions & Answers] tank0412:
Can somebody flash this kernel on stock Touchwiz Noughat rom using TWRP?

https://drive.google.com/open?id=0B-Fin8UxrD6PazAxdUF1ZldfY1k

Thanks.
[Samsung Galaxy Tab A series Questions & Answers] Shadowghoster:
Hangs on the GalaxyTab logo with red lettering in top left, telling that seandroid is not enforcing. After some time the tab directly reboots to recovery.
[Samsung Galaxy Tab A series Questions & Answers] tank0412:
Thx,

I forgot about this seandroid is not enforcing error. Can you test new boot.img ?

https://drive.google.com/open?id=0B-Fin8UxrD6PUHdVV3dhb09oeFE
[Samsung Galaxy Tab A series Questions & Answers] Shadowghoster:
Same as before, just no red text.
[Samsung Galaxy Tab A series Questions & Answers] tank0412:
Thx,

Can you test this boot.img too?

https://drive.google.com/file/d/0B-Fin8UxrD6PMjV0ck9RZlBjUzA/view
[Samsung Galaxy Tab A series Questions & Answers] Androidx86Fan:
Hey! Me again!

Rather than making a ROM, I am going to try and port one. Can someone please give me their boot partition in a image file? (You know, "boot.img")

---------- Post added at 09:52 PM ---------- Previous post was at 09:52 PM ----------

I want the official nougat boot.img please.
[Samsung Galaxy Tab A series Questions & Answers] noah110112:
How to do that? Where can i find the boot.img ?

Best greetings! :)
[Samsung Galaxy Tab A series Questions & Answers] tank0412:
You can use boot.img from zip archive with Ultra Lean Rom or something like this.

Nobody was able to boot LineageOS 14.1 on Exynos7870 CPU so I think that you have no Rom to port.

BTW, I still need someone who can test this kernel on stock Noughat rom:

https://drive.google.com/file/d/0B-Fin8UxrD6PMjV0ck9RZlBjUzA/view
[Samsung Galaxy Tab A series Questions & Answers] Jamess27:
I could try it, but I have ultra lean Ron installed, I think it should be ok. Can I use MTweaks for it?
[Samsung Galaxy Tab A series Questions & Answers] JoostA:
Very happy to find this thread. I am running Cyanogenmod / Lineage OS for years now on various devices. I just bought my Galaxy T-580 last week and did - until now - not find yet people trying to get in running on Lineage (I discovered the Ultra-lean ROM and the Extremely ROM, and installed the latter the day I bought the device. However I think it would be a far better job to get Lineage OS running on it as well.

Alas I am no no programmer at all. But from now on I will be happy to run test builds.

For those of us who want to do that as well: it probably would be a good idea to first make a Nandoid backup via TWRP (get a decent SD card first...). In case of "accidents" it will help you out of trouble. In case of serious trouble you can flash the original Samsung firmware as well I my self downloaded the Dutch (European) version of it. If anybody wants t have it, just let me know.

---------- Post added at 03:02 PM ---------- Previous post was at 02:50 PM ----------

Hi. I am going to try to do that for you anyway.

However, I have a question. Is it is necessary to replace my custom ROM for the stock ROM ? I ask this because it will take some time to make a backup of this custom ROM (mine is the extremely ROM), to move it to some safe place and replace it by the custom ROM, test this and next get everything in working order again from my backup.

No need to explain in full detail, I will gladly accept "yes, possible" or "not possible" for an answer...:o
[Samsung Galaxy Tab A series Questions & Answers] tank0412:
Extream and lean rom are stock-based (Noughat) so this boot.img must work on it (so it is possible)

I recommend you to backup your current rom because Samsung released broken kernel source code so maybe it will not pass OEM logo.
[Samsung Galaxy Tab A series Questions & Answers] JoostA:
Well first solved some Ubuntu 17.10 problems. No wifi... -:)

Now for the latest image: the effect is the tablet fails to start altogether. The only thing I can see is "Samsung Galaxy Tab A6, powered by Android"(which is the initial; boot screen) and that is flashing with 3 seconds intervals (I used the extremely ROM). I wonder how to get adb logcat going,. Just entering "adb logcat > logcat.txt" + hitting enter isn't doing the job of course (it closes the files immediately without logging). I have no problem connecting the device. That is for sure (adb devices works OK). I am going to restore things now for the next trial.

(How to make logcat files is explained elsewhere, I found https://xdaforums.com/showthread.php?t=2274119, I just whether you have to hit "enter"in the end, which appears to log just nothing)
[Samsung Galaxy Tab A series Questions & Answers] JoostA:
As for booting: I just found this thread (no time yet to look into that) but it may be useful somehow:

https://xdaforums.com/android/software-hacking/reference-how-to-compile-android-kernel-t3627297
[Samsung Galaxy Tab A series Questions & Answers] tank0412:
If kernel binary is broken, adb will not work.

It looks like samsung released broken kernel source.

I do not know what to do with it.

Also nobody was able to boot LineageOS 14.1 on Exynos7870.

So all is very sad.
[Samsung Galaxy Tab A series Questions & Answers] JoostA:
Well thanks for your efforts anyway: you have been doing lots more than I did. I hope you don't give up altogether.

I now realize it will take us quite some time to beat the crappy code of: Samsung some way, but I *will* be searching and reading and posting what I can find. and how to do it (I still did not yet read myself the link I posted before :mad:) Anyway even for my very old Samsung Galaxy Tab 2.0 (7") we now have Lineage up and running, so a lot is possible apparently. I also will try to redirect people asking for Lineage to join this thread so more people can put their hands on it.
[Samsung Galaxy Tab A series Questions & Answers] JoostA:
Just for the interested. This link tells what phones are using the same processor as our Galaxy Tab A:

http://www.samsung.com/semiconducto...ution/MobileProcessor/Exynos_7_Octa_7870.html

It seems there is a reasonably lively discussion going on between Galaxy A3 (2017) owners how to get it going under Lineage OS. So that will be something to monitor....
[Samsung Galaxy Tab A series Questions & Answers] Valera1978:
I'm working on lineage 14.1 for T585 (T580 the same, it should be easy fix).

I had spend a week and finally yesterday I got lineage.

T580/85 have specific - 64bit kernel with 32bit fixes and 32bit original stock firmware.

Now I'm with 32bit lineage 14.1 (kernel 64bit), but I'm want fully 64bit.

Working: wifi, sound, vibra, sdcard, mtp, brightness

DNW: gps, auto-brightness, bluetooth, ril (in T585), something wrong with acceleration (lags in interface, video).

I don't want publish draft version right now. Hope during this week I'll finish and publish.
[Samsung Galaxy Tab A series Questions & Answers] repey6:
Thanks for your job! Can't wait. Want it very much! Goodluck!
[Samsung Galaxy Tab A series Questions & Answers] Jamess27:
I'm waiting for it!! Thank you very much
[Samsung Galaxy Tab A series Questions & Answers] JoostA:
[MENTION=2047373]Valera1978[/MENTION] That is fantastic news. I just was here to check out why I wasn't able to produce a logcat.txt so as to help outTank0421, but it appears that part is now somewhat superfluous :D