yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] ELProfeMcK:
Nope, backlight is off at all time, i have to put my phone's flashlight to see and check brightness settings. TWRP and rom were 100% autobrightness. I played around with it and it doesn't work. I played with lineage os rom and damn, that thing is beautiful, quick and responsive.... If only.... :crying:

I was wondering if i should flash stock and find a way to make original kernel permissive and try again :confused:
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] asislife20:
try using the latest marshmallow firmware, for some reason I had this issue and was messing around and flashed lineage on top of marshmallow firmware are it loaded. I cant remember if I used the 3.2 twrp, but i believe it was still black so I used 3.1.1

---------- Post added at 01:38 AM ---------- Previous post was at 01:15 AM ----------

I tested it and using XAR-T350XXU1BPK marshmallow firmware with 3.2 twrp fixes the black screen issue with both twrp and the rom, not sure why, but it works!
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] ELProfeMcK:
MINDDDD BLOWWNNNN...... It WORKEEEEEDDDDD :D

Thanks man, I appreciate the time you took to help me figured this out. Big thanks to all of you. Hands down :good:
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] asislife20:
No problem! Now if only the audio worked, I would actually use it. Not sure why some people have issues on the newest firmware and some don't, its Hella weird!
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lividhen:
Sorry meant that as an I'm confused, not as a a ?

---------- Post added at 05:40 AM ---------- Previous post was at 05:39 AM ----------

Do you mind posting a link I can't find it.

Did you flash marshmallow with 3.1.0 or 3.1..1?

K, I might have found it, it's it T350XXU1BPK1, T350XXU1BPK2 or T350XXU1BPK3
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Techguy777:
That's hard for me to say because we are all using the same kernel if you're using stock nougat. Even if you're on a custom ROM for nougat or marshmallow. Marshmallow the permissive kernel is still stock with permissive so you would have to try it. That is weird that some have this problem and others don't.

---------- Post added at 10:02 AM ---------- Previous post was at 09:54 AM ----------

T350XAR1BPE3 I could be wrong I checked sammobile and it think it was that firmware I'm using so I can flash permissive kernel. Nope its the one I said I checked my old hard drive with my backups.

https://www.sammobile.com/firmwares/galaxy-tab-a/sm-t350/XAR/

---------- Post added at 10:03 AM ---------- Previous post was at 10:02 AM ----------

Again I would try to flash marshmallow and turn off auto brightness uncheck the box that always darkens my screen.

---------- Post added at 10:21 AM ---------- Previous post was at 10:03 AM ----------

Just to clear it up lineage 15.1 does have permissive kernel its a great ROM it'll be my daily driver as they say once speaker sound is fixed.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] ivywen:
I can also confirm the backlight error fixed when you use Odin to flash the marshmallow firmware. I downloaded the firmware from updato and flashed in newest Odin. I may have gotten a corrupted firmware download, as it would not boot all the way, but despite that, I was able to flash twrp 3.2 and see everything properly, then to install this version of lineage perfectly.

Thanks so much to everyone for this ROM, and the backlight fix help!!
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lividhen:
Can I just flash marshmallow on to oreo or do you fall back to nougat first, sorry just need all the info Iv had a lot of bad experiences downgradeing devi es
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] ivywen:
I had the same issue, and was able to flash twrp and then this ROM directly after I went to marshmallow from Odin
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lividhen:
Thank you
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Techguy777:
I do believe you can flash marshmallow on top it will overwrite. The official firmware it won't hurt it I believe butt things do happen. I flashed marshmallow firmware over nougat firmware for another problem it. Youd have to see. If marshmallow doesn't boot reflash nougat I've done that before.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] vin_001:
[MENTION=9321418]Jiiro[/MENTION] what's the status of this ROM? Have any issues been addressed?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] asislife20:
No problem glad it worked!

---------- Post added at 05:47 PM ---------- Previous post was at 05:45 PM ----------

exactly just flash marshmallow with odin, but make sure you wipe before installing the rom!
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] ELProfeMcK:
Yes i agree with all of you about the speaker being the problem for this to be the perfect ROM for this tablet. I personally don't need the speaker because i got this tablet to replace it as my car head unit (removable of course) also to replace my old and storage limited Nexus 7. Even when I'm at home, there's Bluetooth speakers and headphones all over the place. I would love to see a fix for the speaker but i can patiently wait ?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lividhen:
I also use the camera a lot too, so that would be great! Otherwise it's amazing! It's a lot faster than stock! :o

---------- Post added at 11:07 PM ---------- Previous post was at 10:19 PM ----------

Also, can someone tell me how to enable root access? Do I just flash supersu or magisk, or is there a setting? :confused:
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] ELProfeMcK:
I knowww!!! That's why i went for this ROM ?.

And yes, to have root access you have to either flash magisk or SuperSU. I went for Magisk and it is working. I wouldn't know about SuperSU. You could try but just make a backup before flashing
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Techguy777:
Damn I forgot I have Bluetooth speaker I haven't used in years lol. Thanks for saying something now I'm going to go back to that ROM I usually use Bluetooth headphones but when lay down to watch shows they bug me.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Jiiro:
I have issued the problems already, please check it. Thanks!

Also, for the status, it is unofficial, right now I will be trying to compile a newer version of LOS.

If that fails, I will have to make a device tree for this by scratch instead of using Deadman's.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lividhen:
Google assistant

Maby it's just me, but I can't find a way to use Google assistant.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] vin_001:
In the OP it says that external audio isn't working, you've solved it? And just wanted to day thank you for contributing work for our device, thought I wouldn't see the day lol
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Jiiro:
No problem, I think the issue for audio is because of some missing device tree/vendor files. I will get into that a little after I build LineageOS 16.0 (Android Pie).
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] vin_001:
Seems very possible, and Android Pie!!
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] TheMetroGuide:
[MENTION=9321418]Jiiro[/MENTION] (or anyone willing to give it a try) Would flashing the dual-speaker mod for Oreo+ work? maybe that will detect it? Just a thought.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Techguy777:
I have a nexus 6 with a beta pie ROM I tried and in my opinion with pie right now its not worth being on gapps don't work , package installer failing, its pixel setup error whatever that is. I personally don't get the big deal of being on the latest Android if pie had new features I'd understand but it doesn't. So you gain nothing lose stability and lose xposed which is most. I went back to Oreo after 5 minutes of pie its that bad right now.If I find the mod I'll flash it.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lividhen:
Could you drop a link?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lividhen:
i was finally able to download the firmware file, servers were down for maintenance, and just to double check, there is only supposed to be one file, and it goes in ap, right?:confused: Sorry, just really don't want to brick.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Techguy777:
Yes drop a link there's like 5 or more different ones.

---------- Post added at 07:18 PM ---------- Previous post was at 07:15 PM ----------

I understand I always double check things to. Yes when you extract the zip there should be 1 2.5gb file roughly you load that into ap and wait for Odin to say pass.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lividhen:
i got a 2.72GB file...

that close enough?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Techguy777:
I'm sure that's right its been like 6 months since I've clashed firmware. Its the marshmallow firmware that linked right?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lividhen:
the link from page 3, yes
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Techguy777:
I went and double checked that's right 2.72
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lividhen:
thanks:)

flashing now
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lividhen:
Haha! I just realized there are 3 clocks!
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Techguy777:
Did you get lineage up and running?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lividhen:
Yep? found out that of you go into About Device then Status Bar it fixes the 3 clocks.

---------- Post added at 10:25 PM ---------- Previous post was at 09:36 PM ----------

Nope, nothing.

WAIT! I'm so confused! It fixed my inner camera. ?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Techguy777:
Really it fixed camera?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lividhen:
Well it was ether that or whipping cache or dalvic cache, anyways now I have a working inner camera.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Jiiro:
Hey guys, just letting you know, I have linked the official Samsung firmware from Updato in the DevDB thread, please check that out! I used the same exact firmware as the one linked and that should help with everything else. It's Nougat, by the way. I wouldn't risk using a Marshmallow firmware and then skipping a whole Android version (Nougat) to upgrade to Oreo.

If you want to help with the projects or want to donate their computing power for compiling/building, go join the Discord server down below in my signature. I can personally assist you or others will help. :D
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lividhen:
I just finished going through all the nougat firmwares and after flashing oreo there wasn't a backlight on any of them. :confused: maby it is a device specific glitch:silly:
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Techguy777:
Nice
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] TheMetroGuide:
[MENTION=9180355]Techguy777[/MENTION] [MENTION=9047103]lividhen[/MENTION]

I just realized it was only for the S7 & S7 edge. I used the mod when I rooted my S7, sorry for the confusion.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lividhen:
Anyone have any leads on the external audio?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] dantexaiver:
Looking to root and debloat my sons T350 how stable is this ROM?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Techguy777:
This ROM is extremely stable but no external speaker. I'm using it right now with Bluetooth speaker and its fine.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] dantexaiver:
Do the internal speakers and headphones work ?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Techguy777:
Internal speakers? Yes headphones work and Bluetooth work. Just not the external speaker.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] nubianprince:
I tried these instructions on my SM-T350 and both times I was never able to get past the lineageOS logo.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] dantexaiver:
Sorry what i meant was does the built in device speakers work?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Techguy777:
No not on this ROM?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lividhen:
No the speakers, external camera and microphone all do not work, otherwise it's fast and very stable!
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] xKillerXSmileZx:
Hey I'd just like to give my thanks for porting this ROM to the SM-T350. I got it installed and working the first try with no issues. Asides from the camera which I never use on this device anyway, and the speakers (hope that could get fixed), it's really awesome having LOS on this tablet. It runs very smooth and I didn't flash gapps so I can go a more FOSS route.

I do have a question sort of related to the ROM since I have this tablet to test on, but it is about patching the kernel to change the way the EHCI controller behaves. I asked a question here if you want to take a look but basically it is a patch for the USB driver because this tablet uses USB 2.0 with an EHCI controller and I need it to behave like xHCI with the following patch:

--- linux-4.14.27/drivers/usb/host/ehci-hcd.c.old	2018-04-17 18:00:00.000000000 +0000
+++ linux-4.14.27/drivers/usb/host/ehci-hcd.c	2018-04-17 18:00:00.000000000 +0000
@@ -873,14 +873,6 @@
INIT_LIST_HEAD (&qtd_list);

switch (usb_pipetype (urb->pipe)) {
-	case PIPE_CONTROL:
-	/* qh_completions() code doesn't handle all the fault cases
-	* in multi-TD control transfers. Even 1KB is rare anyway.
-	*/
-	if (urb->transfer_buffer_length > (16 * 1024))
-	return -EMSGSIZE;
-	/* FALLTHROUGH */
-	/* case PIPE_BULK: */
default:
if (!qh_urb_transaction (ehci, urb, &qtd_list, mem_flags))
return -ENOMEM;

I don't really know how to go about patching it myself as I have no experience with creating or porting ROMs or kernels. I am hoping you can help me or advise me in the right direction since you were able to port LineageOS to this device.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] dantexaiver:
any progress on the speakers?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] glockman4519:
Outstanding work. Finally got to feeling better and had some time to look at this and it flashed with no issue (I came straight from my v6.3 ROM). I flashed Magisk v16.4 for root and that is working great too. Other than the couple of known bugs, this is a keeper. I am going to be running this on my t350 as my DD now. The first boot was barely over a minute, if that, and it runs faster and smoother than is ever has.

Wi-Fi, Bluetooth and other radio related items are all working, Gapps arm 8.1.0 pico flashed and set up with out a hitch.

Just awesome work. I may have to do a video on this because other than the camera (which we lost on many devices that we ported to Oreo) and audio (external speakers) it's worth the flash. I'm sure that a lot of other t350 owners will want to see this.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Jiiro:
Everyone! School for me is about to start, device tree and ROM updates will be stalled, but not for long, I will try my best! I am currently learning C++ right now and will jump into C and Java. I won't be able to work much during the weekdays as marching band has to be fulfilled. Hope you guys understand but the project will still be maintained monthly. I will keep you guys updated for any other updates.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Jiiro:
I really don't know much about development, all I did was just check GitHub for a device tree. I will check to see if that patch does work, I'm not really sure what that is either. I'm considered a beginner anyways but sure, I'll take a look into the patch after the device tree is finished.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] xKillerXSmileZx:
That's absolutely fine. Thanks anyway! I've been trying to look into it for myself but it just seems too complicated for me. Again, the ROM is really smooth so thanks again for supporting this device!
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Jiiro:
No problem, if you really want to test out really really really really unstable ROMs or maybe a different branch of ROMs, join Discord because 90% of the time, I will be using it because it's so much more reliable than Telegram. But that's up to you, if you want to learn something at the same pace...
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lividhen:
Is it safe to fall back nougat using twrp 3.2.1 from a backup made with 3.1.X, just wondering if I can flash nougat from the oreo twrp or do I need to be on the nougat twrp. :confused: I just don't want to have to reflash marshmallow to get back to lineage. :p

I need to be able to use camera, microphone, and speakers for video call stuffs.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Techguy777:
I use twrp 3.2.1 and went back to marshmallow backup from 3.1 and then back to lineage 15.1 again. It should work fine.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] dantexaiver:
While Im waiting for this rom to get the speakers fixed im interested in rotting the stock image and removing alot of the built in apps and was wondering if anyone knows of a list of built in Samsung crap that is safe to remove?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Techguy777:
I have tried to figure out the same thing and what I find is Samsung doesn't really put out information on what all there apps do and if you can remove them safely. As they want the apps to stay that's also there money maker so they keep it hush hush. So you gotta just start tearing it up and see what works and what doesn't.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Techguy777:
You known I was thinking I've tried to rip out all the crappy system apps that take up literally gigs of space on top of using more data storage because they require cached so it usually takes about 1 GB for that. When pulling out a bunch of system apps at once I bootloop. So my recommendation would be to get like 5 people on this device make sure you are on the same ROM my personal choice is marshmallow if you have to have external speaker me personally I use Bluetooth speaker with lineage 15.1. I think this tablet runs like **** on nougat and I think jazzrom is not for me it doesn't make sense to fill up you're storage and use up ram with all those extras like s pen crap that doesn't work anyway. But to spilt up the list of system apps and each person pull them out one at a time til we find out which one will cause what effect. Its a **** ton of work but its a thought.

Me personal choice is ghost ROM with permissive kernel nougat doesn't give you anything extra and it drains battery twice as fast. They do that because you'll think you're device is getting old so you'll buy a new one its not go back to marshmallow runs like day 1. 10 hours or so battery on ghostrom plus its pretty clean with system bloat.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] TheBestKmanEver:
i completely agree with that jazzrom thing [MENTION=9180355]Techguy777[/MENTION]. it's like the dev wen't "now that i have debloated, look at all this extra space... better make use of it with useless other bloatware"
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Techguy777:
That's for sure.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] dantexaiver:
I found this link https://clickitornot.com/remove-samsung-galaxy-device-apps/ I am going to use it to compare to the apps on my sons tablet and try to remove what I can safely Im just fed with the bloat
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] manic77:
Thanks Jiiro for working on this ROM. Excited and waiting for fully working room patienlty. Good job
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Nigmea:
After installing this and adding pico gapps and the twrp how do I root this.? Sorry new to linage ?

---------- Post added at 01:57 AM ---------- Previous post was at 01:30 AM ----------

Nvm I downloaded this ;

https://mirrorbits.lineageos.org/su/addonsu-15.1-arm-signed.zip

Booted into twrp and flashed it .

Started system went into dev options and selected root options and selected apps only and boom! Done lol
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] glockman4519:
I used Magisk v16.7 to root mine.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] nubianprince:
I swear, i am this close to giving up! Maybe there is something wrong with my Tab that I am not seeing, I cannot successfully flash any custom rom, not this one or any of those that I built. Hopefully someone can shed some light. Ive tried just about every scenario and followed the instructions step by step.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lividhen:
Did you follow the instructions on the first page? I had trouble with that. If you flash marshmallow with odin first it will most likely work.

---------- Post added at 02:05 PM ---------- Previous post was at 02:01 PM ----------

And if that doesn't work, I guess you can try unlocking your bootloader via fastboot. But I don't know very much about fastboot so you might want to confirm with someone else first.

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

Is your tablet rooted? Do you have a custom kernal or is it just straight up stock?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] nubianprince:
Followed Instructions word for word

I believe the bootloader is unlocked, or I wouldn't be able to install TWRP (I do not believe samsung devices support fastboot)

Tablet is not rooted and on stock kernel
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lividhen:
Try flashing magisk.

https://xdaforums.com/apps/magisk/official-magisk-v7-universal-systemless-t3473445

---------- Post added at 07:44 PM ---------- Previous post was at 07:42 PM ----------

Idk why but it wouldn't work till I rooted it. Then I flashes marshmallow, then I flashed twrp, then lineage and gaps.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] nubianprince:
thanks [MENTION=9047103]lividhen[/MENTION] but that didn't help, seems like something is preventing me from me from flashing custom roms.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lividhen:
Can you tell me where your getting stuck? If you can get to marshmallow did you enable oem unlocking in developer settings? What version of odin are you using to flash marshmallow / twrp (if you can get that far)?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] nubianprince:
This devices does not have the OEM unlock toggle in developer settings.

I have been using firmware from updato.com. couldn't get and of the MM firmware to boot.

Going to see if the MM firmware from sammobile.com makes a difference..

Oh I used Odin 3.13 and Odin 3.12
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lividhen:
Just double checking, you turned off auto reboot the force shut it off when it finished?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] hackwoof:
I have a situation done everything asked even went back to mm. I get to the lineage rom it's start it's in the boot screen about 5 minutes turns off and I can only turn it on to the download screen nothing else functions. Only way I can use my tab is odin twrp again and I have a back up through twrp of stock room 7.1.1 I downloaded lineage several times to make sure it wasn't a bad download. I am completely at a loss.

Some please help.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] nubianprince:
Here is what I did.

Odin auto reboot off...

1. Flash lollipop then force restart the back to download mode

Odin auto reboot on

2. Flash MM ( I did it this way to see if MM will boot)

Then restarted to download mode and flash twrp

....................................

Should I have just flashed LL force restart then flash MM force restart then flash twrp?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lividhen:
Yay! :victory: Glad you were able to figure it out. Sorry I wasn't much help :silly:
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] nubianprince:
I appreciate the suggestions you made .... thanks.