yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy Tab A series Guides, News, & Discus] mr_ppp:
Thought i recognised the username, thanks for your work trying to get the tab up and running. I tried previously to get my head around porting to get the HUAWEI MediaPad T1 8.0 Pro working on newer android but gave up as my brain couldn't cope! I work in I.T but this sort of thing goes over my head!

I guess I'll just stick with the debloated T285 rom i have with stock 280 kernel until it dies

My other tablet before the Huawei was a HP Touchpad and that is still going with the latest updates! :D
[Samsung Galaxy Tab A series Guides, News, & Discus] FabioSan:
Wait, the t285 boot with t280 kernel?

That's kinda weird, also if this 2 tablets are pratically the same.

I tried for months with another guy to make this tablet boot with a custom kernel, but nothing..
[Samsung Galaxy Tab A series Guides, News, & Discus] mr_ppp:
Sorry, didn't mean to confuse. I have a T280 and someone made a stock Samsung T285 rom that works on the T280 if the stock T280 kernel is used. Best I can get for the moment - amuses me when the T280 tells me theres no mobile data signal lol!

Did you still have a compiled kernel from when you were working on it? I tried to compile it myself but failed (Me<NOOB)
[Samsung Galaxy Tab A series Guides, News, & Discus] FabioSan:
I think I still have the sources on github, but I'm not sure :/

Ah, you're using that ""custom rom"" made for the t280 that is just debloated, right?

Or maybe link me the rom you're using, if you can :)
[Samsung Galaxy Tab A series Guides, News, & Discus] jschamberlin:
Just got a SM-T280 myself (little gift from the company)....I'm not much of a developer, but I did get hold of what looks to be the source code for the T280....guessing you folks have that already though :)
[Samsung Galaxy Tab A series Guides, News, & Discus] FabioSan:
In this days I'll try again to make boot a custom kernel for this tablet. I think I'll directly try to make it boot with the lineage 16, using jedld base to be modified of course
[Samsung Galaxy Tab A series Guides, News, & Discus] jschamberlin:
Ok....I'm going to poke around in the source code that I got from Samsung - see if I can familiarize myself with what makes this thing tick
[Samsung Galaxy Tab A series Guides, News, & Discus] FabioSan:
Check also Jedld github

https://github.com/jedld/android

https://github.com/jedld/device_samsung_gtexslte.git

https://github.com/jedld/vendor_samsung_gtexslte.git

https://github.com/jedld/kernel_samsung_gtexslte.git

It can be a good idea study this too, because as base is good, just need to adapt it and work on kernel from our stock (t280 base) :)
[Samsung Galaxy Tab A series Guides, News, & Discus] Gleba1337:
Today I saw on github this kernel: https://github.com/natekc/kernel_samsung_gtexswifi

"Nougat+ for Samsung SM-T280 (Wifi)"

So I decided to compile it and I've successfully got zImage.

As we know STOCK T285 system.img + STOCK T280 boot.img can work on T280.

Then LineageOS 14.1 for T285 can work on T280 but we need costum kernel (?) I think so

zImage from this github + T285 linageos ramdisk + dtb.img + seandroid.img (https://xdaforums.com/galaxy-tab-a/...b-7-0-2016-t3431022/post68777842#post68777842)

degas-mkbootimg -o boot.img --base 0 --pagesize 2048 \

--zImage --cmdline "console=ttyS1,115200n8" \

--boot.img-ramdisk-new.gz --dt dt.img \

--signature seandroid.img

...then

lineageos 14.1 for T285 (system.img) + my boot.img

And this is my question:

Can it work? Just theoretically :D

The problem can be in ramdisk but I don't know how to compile it for T280.
[Samsung Galaxy Tab A series Guides, News, & Discus] FabioSan:
Here https://github.com/Fabio-San/kernel_gtexswifi/commit/0f3244ff63d667ac4710900d7701868e4745433a there Is the possible solution to that, because when I was trying with that guy, we did a goo work to build correctly the kernel, but It wasn't booting. So actually maybe I could build bootimage and since I'll have the single files (dt, zImage and so on) we could try to do something :)
[Samsung Galaxy Tab A series Guides, News, & Discus] Gleba1337:
Today I tried my yesterday ideas, but unfortunately it didn't work (stay on boot logo)

My files: http://www.mediafire.com/file/2vrn7l57y0hy7ln/T280_natekc.zip/file (zImage + dtb.img)

Source: https://github.com/natekc/kernel_samsung_gtexswifi

Maybe this will help you, but I can't be sure that kernel is really compatible with nougat, like author say.
[Samsung Galaxy Tab A series Guides, News, & Discus] droidloco:
I have found out a place that says that there is an Android 6 firmware (Pakistan) for this device, but I coudn't confirm anywhere else.

This does not seem correct, so I don't recommend trying it. But if it is, maybe good news for the devs and for us?

PS: This firmware is available on updato.com.

Country / Region: Pakistan

PDA: T280XXU0APK1

Product Code: PAK

CSC: T280OJV0APK2

Phone: T280XXU0APK1
[Samsung Galaxy Tab A series Guides, News, & Discus] FabioSan:
What the :o

Found it for real, downloading it. I'll flash it soon and let you know! If this boots, we have a real big chance to have custom roms based on 6.x, and after we can go also for further versions!
[Samsung Galaxy Tab A series Guides, News, & Discus] juanysara:
Have you tried it already? Is there any difference with 5.1.1?

Thank you
[Samsung Galaxy Tab A series Guides, News, & Discus] FabioSan:
I'm going to flash soon, but I think it'll be android 5, not 6. I think it's an error of the site :/

Edit: I had weird problem at first flash, but I solved them and now flashing with odin.

Edit 2: As I thought, It isn't Android 6 based. It's a 5.1.1 ROM as the other ones. It was surely an error in that website :/
[Samsung Galaxy Tab A series Guides, News, & Discus] droidloco:
It was to good to be true. Sorry for any inconvenience.
[Samsung Galaxy Tab A series Guides, News, & Discus] Biorez:
Is there anyone still working on this?
[Samsung Galaxy Tab A series Guides, News, & Discus] cssobral2013:
It's INCREDIBLE that a 2016 Tablet, from a big brand (Samsung), is STILL on 5.1, while as of today we are on Android 9.0.
[Samsung Galaxy Tab A series Guides, News, & Discus] slepee:
since 2017 I have been waiting for a custom rom for this tablet. I hope you can get
[Samsung Galaxy Tab A series Guides, News, & Discus] RoraimaFilho:
wow... I just got this tablet as a prize on a competition. So, the status quo of this tablet is: there is no chance to get a custom rom? Is it right?
[Samsung Galaxy Tab A series Guides, News, & Discus] FabioSan:
Actually yeah, no chances... It's incredible, but we lack on capable devs that want to try porting a lineage or any aosp rom xD

So well, this tablet will die with no more then root and twrp, sadly.
[Samsung Galaxy Tab A series Guides, News, & Discus] garylawwd:
Porting ROMs is absolute crap and to port a rom you would need device trees and kernel for the tab which we don't have.

Thats the hard part building device trees and kernel, once they are built then ROMs could be built from source.

If you want to port you still need a base to port to like a stable rom of the same android version.

So porting is useless without the trees and kernel.

That is a few months work to get the device trees and kernel to work as normal if we wanted to build android 6 or even 7.

If I wasnt so busy with personal life I would give it a go but there is no way I will ever have that free time to try
[Samsung Galaxy Tab A series Guides, News, & Discus] FabioSan:
I tried once, but the main problem is the kernel. I wasn't able in any way to make it boot .-.

For the other parts, we can use sm-t285 vendor and tree + spid sources too (of course with source fixes). But I'm not that good to set up correctly kernel sources, also this tablet kernel is a real crap ^^"

This is what I tried to do to build a lineage

https://github.com/Fabio-San/device_samsung_gtexswifi

https://github.com/Fabio-San/vendor_samsung_gtexswifi

https://github.com/Fabio-San/gtexswifi

https://github.com/Fabio-San/android_vendor_sprd

https://github.com/Fabio-San/kernel_gtexswifi

Surely I messed up many things, also I don't remember If I pushed all on github xD
[Samsung Galaxy Tab A series Guides, News, & Discus] Verhuel15:
Could someone bring treble support so we can flash gsi image
[Samsung Galaxy Tab A series Guides, News, & Discus] RoraimaFilho:
It seems hard to do that. And with a lot of new devices, I don't think it is a thing to run all these troubles to get a rom to an old device.

Thanks . It's kinda frustrating wining a prize like these with no possibility to change the rom. But, it was a prize. I will be happy as I could read and watch Netflix on it. Hahaha

Pretty hard to be a developer. It is so much information and different possibilities and gadgets, and life! Thanks mate.
[Samsung Galaxy Tab A series Guides, News, & Discus] jo0b4k4:
I just got this as a hand me down from a relative to use as a dedicated media player at work. I'm debating on trying to get Ubuntu Touch on this, but I guess, just like [MENTION=5583599]FabioSan[/MENTION] discovered, it might not be as straight forward as expected.
[Samsung Galaxy Tab A series Guides, News, & Discus] FabioSan:
I was thinking at Ubuntu Touch too, but the problem remains ^^"
[Samsung Galaxy Tab A series Guides, News, & Discus] jo0b4k4:
I'll try to go through what you put up on github, lot's of good information there and maybe something can come out of it
[Samsung Galaxy Tab A series Guides, News, & Discus] FabioSan:
Maybe, but my sources need many fixes, also kernel wasn't booting :/
[Samsung Galaxy Tab A series Guides, News, & Discus] EliteeSword:
How do you Patch and Create a Device Tree?

\

I was hoping on making the ROM but I don't know how to patch kernels to the SM-T280, and create the device tree :)
[Samsung Galaxy Tab A series Guides, News, & Discus] anthony-da:
I was wondering if possible if anyone could apply this patch https://xdaforums.com/attachment.php?attachmentid=3831829&d=1470214485 to the t280 kernel, i would do it but do not have the knowledge to do so

I am trying to use a otg cable to charge and use a usb accessory at the same time
[Samsung Galaxy Tab A series Guides, News, & Discus] FabioSan:
Since we can't get neither a booting build of our own stock kernel, I doubt. In this days anyway I have to try again a thing to build it again.
[Samsung Galaxy Tab A series Guides, News, & Discus] jimbomodder:
I'm looking at building lineage for this device but cannot find vendor tree, also I see kernel needs tweaks too. I'm fairly new to building but only built for LG v30 currently. Any help on vendor would be gladly appreciated
[Samsung Galaxy Tab A series Guides, News, & Discus] RoraimaFilho:
Anyone know if it is possible to install apps in the sd card? I know that from factory, it is not, just some of them. But is there an alternative to move apps to sdcard?

Thanks in advance.
[Samsung Galaxy Tab A series Guides, News, & Discus] garylawwd:
Link2sd app on playstore but you need to be rooted to do it.

Installing twrp in this device is straightforward and just flash magisk after that and install that app.

Plenty of guides on YouTube and Google to get it working for you
[Samsung Galaxy Tab A series Guides, News, & Discus] Gleba1337:
Hello

I overclocked CPU from 1.3Ghz to 1.5Ghz, benchmark results in attachment. (first ss - stock, second ss - oc)

Install in TWRP

PS Don't know why but geekbench identify sc7730 as snapdragon 410 (???)
[Samsung Galaxy Tab A series Guides, News, & Discus] FabioSan:
How did you do it? Did you built from zero the kernel or just changed something?
[Samsung Galaxy Tab A series Guides, News, & Discus] Gleba1337:
"from zero"

You can use me kernel source https://github.com/Gleba1337/android_kernel_samsung_gtexswifi

Just change "CROSS_COMPILE" and "outdir" path to your own in makefile and build.sh

This will give you zImage
[Samsung Galaxy Tab A series Guides, News, & Discus] FabioSan:
That's nice! We could try to build a better tweaked kernel :o

Also maybe something to have cyano :l
[Samsung Galaxy Tab A series Guides, News, & Discus] juanysara:
How can I install it?

Thanks :good:
[Samsung Galaxy Tab A series Guides, News, & Discus] FabioSan:
Extract img that is on the zip and flash the img via twrp ;)

Then you'll need root and kernel adiutor to choose the OC freq
[Samsung Galaxy Tab A series Guides, News, & Discus] juanysara:
It won't start. :(
[Samsung Galaxy Tab A series Guides, News, & Discus] FabioSan:
That's really weird .-.

Tell me the steps you did and on which situation you were :)
[Samsung Galaxy Tab A series Guides, News, & Discus] juanysara:
Extract img that is and flash the img via twrp but it does not turn on, the logo appears and then turns off
[Samsung Galaxy Tab A series Guides, News, & Discus] FabioSan:
Try to flash magisk too
[Samsung Galaxy Tab A series Guides, News, & Discus] juanysara:
I got it.

Thank you
[Samsung Galaxy Tab A series Guides, News, & Discus] barrie.kenyon:
Hi Everyone

Since we are all now quarantined in isolation is now a good time to actually do a custom ROM for the Samsung SM-T280?

We have 3 weeks at home before the UK government lifts this, and the same before President Trump solves the epidemic for the world. Once you have dug the garden, painted the kitchen, binge watched that Netflix series, etc, you will have nothing to do. Turn your talent towards the humble T280. Wouldn't it be good to be the first to produce a working Android 9 or 10 for this friendly little tablet. Anything that gets rid of the ridiculous limitations of Android 5.1.

Come on team, shoulder to the wheel and let's make the T280 great again!

Is there anyone out there up for the challenge?

Barrie
[Samsung Galaxy Tab A series Guides, News, & Discus] FabioSan:
Good news: I was able to successfully build the kernel base offered by [MENTION=8962941]Gleba1337[/MENTION]

Now I'll have to figure out how to make it boot maybe on a cyano for the lte version of this tablet ;)
[Samsung Galaxy Tab A series Guides, News, & Discus] barrie.kenyon:
That's great, Fabio

Once this project has taken its first steps I am certain it will start to fly!!!

Good luck and keep at it.

Barrie
[Samsung Galaxy Tab A series Guides, News, & Discus] juanysara:
My tablet has improved with that kernel.

If you need someone to try I volunteer.

Thank you
[Samsung Galaxy Tab A series Guides, News, & Discus] FabioSan:
I tried building with the script included in your sources, but I don't obtain a bootimage :/ did you missed to upload something?
[Samsung Galaxy Tab A series Guides, News, & Discus] Gleba1337:
Files are 100% ok.

You need to change "export outdir=" in build.sh to your own path.

After successfull build, .zip with ZImage will be located in "export outdir="
[Samsung Galaxy Tab A series Guides, News, & Discus] FabioSan:
And I have to flash the ZImage on the tablet? Or what?

Edit: nevermind, I kinda found how to build it following jedld github guide.

Now I know why I need the zImage.
[Samsung Galaxy Tab A series Guides, News, & Discus] Rutilicus:
Is there any update with the custom ROM for t280? I only know to flash the ROM with ODIN and also rooting the tablet but it seems it is not enough to have the upgraded ROM in the way I know. Or am I missing something?
[Samsung Galaxy Tab A series Guides, News, & Discus] Need4Sneed:
Which version of Magisk are y'all using with this kernel BTW? Thanks much!

:confused: :)
[Samsung Galaxy Tab A series Guides, News, & Discus] barrie.kenyon:
Good morning guys.

Is there any progress on a custom ROME for the T280?

Self-isolation will continue for some weeks yet here in the UK. Someone must have the ability and the time to get this project moving! Lots of people out here will help with testing etc, including me. Just ask.

Let's make the T280 great again!

Barrie
[Samsung Galaxy Tab A series Guides, News, & Discus] Rutilicus:
We only need a good custom rom (My basic wish is to use external memory as internal). Of course, I am also ready to give my support with my T280 (in fact I have two). But unfortunately I am no programmer and what I am only able to do is to flash my gadget, nothing else :(
[Samsung Galaxy Tab A series Guides, News, & Discus] garylawwd:
Why would someone bother wasting there time. It's a lot of work for absolutely no return only users saying "this is buggy, that is laggy" etc

Too old of a tablet to be wasting so much time on.

All the work that must be done to the device tree alone is substantial.

And to do all that work for a tablet thats stuck in the prehistoric lollipop days seems a waste of someones time who could actually be doing something productive.

I had a look at what I could do with sources and stuff a while back and it is a mess so no thank you.

Maybe I'm wrong and someone will try get the ball rolling here but I highly doubt it.

Keep yourself safe man.
[Samsung Galaxy Tab A series Guides, News, & Discus] Rutilicus:
But the T285 thread is going on and if you have a custom rom for T280, I think the hardware is enough to handle higher level android software, isn't it?
[Samsung Galaxy Tab A series Guides, News, & Discus] garylawwd:
It is I have Galaxy j500f with the same soc (sd410) running Android 10 but the problem still lies with the device trees. I don't think you understand the work that will have to go into it, especially for an older device which not many people are using unfortunately
[Samsung Galaxy Tab A series Guides, News, & Discus] TheLegendofMario:
I think what people need to encourage developers is a bounty, I personally can't contribute to a bounty because I'm unemployed and completely broke
[Samsung Galaxy Tab A series Guides, News, & Discus] barrie.kenyon:
There are comments about this thread on the T285

Custom ROM thread.

The T285 has Lineage 14.1 (android 7.1). That would be better than current 5.1. Android 8 or 9 would be even better!

Can we get enough of a team together to make this happen?
[Samsung Galaxy Tab A series Guides, News, & Discus] barrie.kenyon:
We are 2 weeks further into lockdown and we do not seem to be making much progress.

This lock down is surely only going to last a few more weeks. It is either clear the garage, hack the garden, or get this project to completion.

What do we need to do to get a result?
[Samsung Galaxy Tab A series Guides, News, & Discus] _mone:
>>> lineage-14.1-20200512-UNOFFICIAL-gtexswifi.zip <<<

As of now I describe this build as a "massive hack".. samsung made this device very difficult to work with..

This build has NO AUDIO, NO BRIGHTNESS CONTROL, NO CAMERA.. and probably more! It is a "selinux permissive" "eng" build.

Sources will come in the next few days (a week?)(no ETA), I need to clean them up and fix audio first.

Flash it via TWRP if you're brave enough.
[Samsung Galaxy Tab A series Guides, News, & Discus] FabioSan:
Wow mate, you kinda did a big miracle xD

Following your progresses from now on, good job!
[Samsung Galaxy Tab A series Guides, News, & Discus] barrie.kenyon:
Amazing!

I was beginning to think that this thread was dead, but suddenly it springs to life.

Keep up the good work. I am sure that other developers will want to contribute to your success.

We all look forward to seeing your progress over the coming days.

Best wishes

Barrie
[Samsung Galaxy Tab A series Guides, News, & Discus] FabioSan:
Okay I was (I'm still) testing the rom

Surely it need fixes and improvements, but have android 7.1.2 instead crappy samsung 5.1 It's already the heaven!
[Samsung Galaxy Tab A series Guides, News, & Discus] barrie.kenyon:
Well done.

Keep it up!

Please let me know when you are ready for people to test.

Barrie
[Samsung Galaxy Tab A series Guides, News, & Discus] FabioSan:
Actually I was able to flash Pico open gapps, magisk and set up kernel with mtweaks (the few things possible of course) :)

I saw on log the camera problems, audio too :) [MENTION=6847876]_mone[/MENTION] if you need any help with logs, talks, tests, I'm here :)
[Samsung Galaxy Tab A series Guides, News, & Discus] Hälftebyte:
Awesome! Nougat on this tablet would make a big difference.
[Samsung Galaxy Tab A series Guides, News, & Discus] No3ight:
Hey Guys,

first off all I would like to say thanks to all of you making progress in developing for sm-t280. Are there any news in cm14? Today I will flash the first build of cm14 for the sm-t280. I hope that we will get a fully working cm in the future.

Greetings.
[Samsung Galaxy Tab A series Guides, News, & Discus] MariosMpalas:
[MENTION=6847876]_mone[/MENTION] I flashed your build and it just made my tablet more beautiful. Except the errors you have written i see a red flashing border around the screen and also the offline charging indicator (the one shown when the tablet is turned off) is upside down. Also i think you should create a separate thread for this rom as you did the most difficult part, you ported the main rom.
[Samsung Galaxy Tab A series Guides, News, & Discus] FabioSan:
You have to flash Pico gapps :)
[Samsung Galaxy Tab A series Guides, News, & Discus] MariosMpalas:
I just flashed it for testing. I didn't flash gapps. Would this help fixing these errors?
[Samsung Galaxy Tab A series Guides, News, & Discus] FabioSan:
Just the red blink on the screen corners :)
[Samsung Galaxy Tab A series Guides, News, & Discus] TheLegendofMario:
I'm so excited that someone got a custom rom running! Though I am curious, is the custom rom 64-bit android? I had heard that SoC supported 64-bit but had a 32-bit android installed.
[Samsung Galaxy Tab A series Guides, News, & Discus] barrie.kenyon:
Hi guys.

It has been another week. Is there any update on the new ROM? My T280 keeps running out of space, and 5.1 doesn't like using the sd card for system storage. I am keen to get the new rom and see some improvements.
[Samsung Galaxy Tab A series Guides, News, & Discus] fmosegui:
He flashed the rom to test it, and as indicated, it doesn't work: camera, brightness, sound and youtube doesn't work either. However, he left this ROM installed instead of returning to the stock version, since the difference is abysmal. Thanks for the effort, awaiting progress

---------- Post added at 09:36 AM ---------- Previous post was at 09:04 AM ----------

have flashed gapps arm (32 bits) I think the 64 bit you mentioned, a lineage of 17.1 is specified for the tablets model SM-T580 and SM-T585.
[Samsung Galaxy Tab A series Guides, News, & Discus] _charlie.mckeon_:
So overall when do you think we will have the final zip file for this custom rom?
[Samsung Galaxy Tab A series Guides, News, & Discus] FabioSan:
Never ask this things (called ETA) :)
[Samsung Galaxy Tab A series Guides, News, & Discus] _charlie.mckeon_:
sorry, eta then or whatever it is :laugh:
[Samsung Galaxy Tab A series Guides, News, & Discus] _charlie.mckeon_:
so when will this rom be ready?

and also really big thanks to [MENTION=6847876]_mone[/MENTION] !
[Samsung Galaxy Tab A series Guides, News, & Discus] garylawwd:
That's what eta is! Don't ask when it will be ready.

Eta = Estimated Time of Arrival ie when will it be ready.

Asking etas is a big no no on xda and you're only going to get abuse for asking such questions.

Remember most of the devs do this as a hobby so when they have spare time they will work on it. Until then either install the version that was provided on the last page and give feedback and logs of issues or wait for a new release.

Xda is a developers website not a place to get your cool new software so better to treat it that way
[Samsung Galaxy Tab A series Guides, News, & Discus] _charlie.mckeon_:
Omg, i didn't realise. I'm new to XDA and i didn't think it was bad so I'm sorry for making anyone feel annoyed. I won't reply like that again.
[Samsung Galaxy Tab A series Guides, News, & Discus] FabioSan:
It's fine don't worry :) but read the xda rules when you can :)
[Samsung Galaxy Tab A series Guides, News, & Discus] _charlie.mckeon_:
I sure will!
[Samsung Galaxy Tab A series Guides, News, & Discus] dcap0187:
if anything is every developed for this turd of a tablet i would be amazed. i'm just surprised that _mone made progress on it almost 3 years later. good job! at this point i'm just curious of how this tablet could have functioned on a more vanilla version of android