yashsingh1/xdaforums huggingface dataset:
[Galaxy Tab 4 Original Android Development] S@BL:
Bonjour, Novice très novice (en tout matériel et forum) il a fallu par obligation (ne pouvant plus utiliser certaine application nécessitant android sup) que je passe ma tablette samsung galaxy tab 4 bloquée à android 6 à android 11.

Après mettre fait aidée sur un forum, j’ai appliqué la procédure en fichier joint. Ce fut un peu laborieux mais je suis super contente d’y être parvenu.

Par contre ce jour j’ai tenté de connecter mon clavier bluetooth 1 by one qui fonctionnait parfaitement avant et là le bluetooth le détecte mais le clavier ne semble pas reconnu comme clavier physique et n’apparaît pas.

Il semble que ce pb soit connu mais je ne sais pas du tout comment le résoudre. Pouvez-vous m’aider ? Je n’ai pas trop envie de tout réinstaller à nouveau et ne sais pas du tout comment m’y prendre étant vraiment novice.

Peut être une mise à jour android réglerait mon souci mais comment exécuter une éventuellement mise à jour ? car sur la tablette mise à jour il dit ok à jour.

Merci par avance

Mod edit : English please !

Google translation:

Hello, Very novice novice (in all material and forum) it was necessary by obligation (no longer able to use certain application requiring android sup) that I switch my samsung galaxy tab 4 tablet blocked to android 6 to android 11.

After getting help on a forum, I applied the procedure in the attached file. It was a bit laborious but I'm really happy to have succeeded.

On the other hand, today I tried to connect my bluetooth keyboard 1 by one which worked perfectly before and there the bluetooth detects it but the keyboard does not seem to be recognized as a physical keyboard and does not appear.

It seems that this pb is known but I have no idea how to solve it. Can you help me ? I don't really want to reinstall everything again and don't know at all how to go about it being really new to it.

Maybe an android update would solve my problem but how to run a possible update? because on the updated tablet it says ok updated.

thanks in advance
[Galaxy Tab 4 Original Android Development] matteo0026:
Hi, did you try to pair other bluetooth devices? Bluetooth works fine in my ROM.
[Galaxy Tab 4 Original Android Development] S@BL:
Bonjour et merci. Pour information je ne parle pas bien anglais mais aide avec google traduction.

Eh bien oui mon téléphone portable s'adapte bien comme le clavier bluetooth il le voit mais je n'y ai pas accès comme si quelque chose était bloqué

Mod translation:

Hello and thank you. For information I do not speak English well but help with google translation.

Well yes my cell phone fits fine like the bluetooth keyboard it sees but I can't access it like something is stuck
[Galaxy Tab 4 Original Android Development] matteo0026:
Use google translate to write here too, otherwise a moderator has always to translate the message for you.

By the way, when you enable the bluetooth, are you able to read its MAC address? It's an hexadecimal string made in this format: xx:xx:xx:xx:xx:xx
[Galaxy Tab 4 Original Android Development] S@BL:
oui quand je clique sur ma tablette en haut de l'icone bluetooth cela ouvre une page des appareils connectés et là je clique sur le clavier ou téléphone précédemment connecté je vois l'adresse buetooth de l'appareil 73:18:09:16:00:31 ( bluetooth clavier 1 par un) et tout est ok comme s'il était connecté mais ne fonctionnait pas ?

Mod translation: yes when I click on my tablet at the top of the bluetooth icon it opens a page of connected devices and there I click on the keyboard or previously connected phone I see the buetooth address of the device 73:18:09:16: 00:31 ( bluetooth keyboard 1 by one) and everything is ok like it is connected but not working?
[Galaxy Tab 4 Original Android Development] Badger50:
@S@BL

Greetings. As a "last time" courtesy," I have translated you last two posts. Please be respectful and observant of XDA Rule #4 for all of your future posts.

Spoiler content hidden.

Your cooperation is appreciated and expected as per the Forum Rules. Thank you.

-Regards: Badger50
[Galaxy Tab 4 Original Android Development] S@BL:
Hello yes excuses me
[Galaxy Tab 4 Original Android Development] S@BL:
yes when I click on my tablet at the top of the bluetooth icon it opens a page of connected devices and there I click on the keyboard or previously connected phone I see the buetooth address of the device 73:18:09:16: 00:31 ( bluetooth keyboard 1 by one) and everything is ok like it is connected but not working?

my keyboard is paired because on the bluetooth symbol I have two dots on each side but what is happening then what is blocking all bluetooth devices ?
[Galaxy Tab 4 Original Android Development] Virtual naturalist:
First time user here. Is the battery leak problem people were talking about solved? I know you have made some changes since then but I can't tell if the issue is supossed to be solved.

Thanks for your work.
[Galaxy Tab 4 Original Android Development] S@BL:
for help you j join a video the problem is my keyboard is detected but no work and i don't understand why
[Galaxy Tab 4 Original Android Development] S@BL:
Hello, Always with the aim of fixing my bluetooth keyboard problem which pairs but does not activate. I tested this: starting the android 11 galaxy tab 4 sm-t530 tablet in restricted security mode so it eliminates the idea of services that could prevent proper operation. Then I reset the connections: bluetooth - wifi ... restart ... etc but the problem persists
[Galaxy Tab 4 Original Android Development] matteo0026:
Ok, can you try to get a logcat? Start recording it when you try to pair the keyboard to the tablet and finish after trying to type something (even in other apps, like in the settings search bar).

Otherwise for me it's very difficult to understand why it doesn't work.
[Galaxy Tab 4 Original Android Development] S@BL:
Hello Matteo, Ok I will try as soon as I can because there I had to leave my tablet. And I'll send it back to you in a few days. Thank you in advance for your help.
[Galaxy Tab 4 Original Android Development] d_a_ugono:
How did channel48 on YouTube manage to somehow install arm64 Android 9 Gapps on this arm device with this Android 11 ROM?!
[Galaxy Tab 4 Original Android Development] reckless17:
hi sir.My English is not very good.I am sorry for this.i am having a problem.I have a samsung Tab4 Tm 530 model device.I am trying to install rom for the first time.I'm not sure if I'm doing it right.but i am getting error somewhere.

I'm uploading a picture of the error I get below.I don't know much about these things.I would be very happy if you help me.thank you.
[Galaxy Tab 4 Original Android Development] d_a_ugono:
You tried to flash the ROM zip file for a different variant (milletltetmo). You should flash the one for your variant (matissewifi).
[Galaxy Tab 4 Original Android Development] reckless17:
hi Sir.First of all, thank you very much for your reply.Like I said, I don't know much about these things.Can you tell me which one I should install?
[Galaxy Tab 4 Original Android Development] d_a_ugono:
Download the ROM zip file for matissewifi. Download links are in original post.
[Galaxy Tab 4 Original Android Development] rppower:
so... I know it's been asked before but is the battery drain issue fixed in the latest release? I couldn't find the release notes or other info. Thanks
[Galaxy Tab 4 Original Android Development] FailSafeNow:
I like this ROM so far. I installed it, and it instantly fixed the camera problems from Lineage 16.

But I have a few problems:

1. This ROM does not restart or shut down, so much as crash like a nosediving plane. I give it the command to restart or shut down, and I get the acknowledgement and the spinning disk for about a second... and then it just dies. Anybody else seeing this? I wiped System before I installed, but not Data. I'd rather not go through that hassle, but if I have to, I suppose I have to.

2. In Lineage 16, I was able to use various root-level BuildProp editors. On this ROM, they can't quite get enough Root permissions (Magisk) to save changes, and I have to resort to using ADB instead.

3. Audio channels are still reversed. Gimme a second to open up the ROM and look at mixer_paths.xml, and I'll see what's really what.
[Galaxy Tab 4 Original Android Development] FailSafeNow:
Ok, I extracted mixer_paths.xml from the downloaded ROM. Extracted it directly, with no opportunity for it to be altered in any way. It has the same problem I've been noting for the past several months. In the range of Lines 196 to 237. Left and right are getting swapped in my headphones.
[Galaxy Tab 4 Original Android Development] matteo0026:
Just do one post per time, please. Anyway, I think that before starting to talk about issues, it's better you do all the wipes.

About build.prop editing, probably something system-wise has changed, and to change something in system, you have to go to twrp and edit what you want from there (even build.prop, since twrp 3.5.x has nano embedded in it).

Still, no issues from other users. Something is wrong with your software/hardware setup.
[Galaxy Tab 4 Original Android Development] FailSafeNow:
Regarding the audio, I just really find it hard to argue with the following lines:

<ctl name="RX2 MIX1 INP1" value="RX1" />

<ctl name="RX1 MIX1 INP1" value="RX2" />

It's telling the device to route the input for RX1 into RX2, and vice versa. I'm pretty sure that isn't correct.

As for why no one else is having issues with left and right, I have two possibilities:

1. Maybe this issue doesn't affect Bluetooth audio, and this is what a lot of people are using nowadays. I use traditional wired headphones because I don't like the hassle of having to charge extra things. And as for the other people with wired headphones, they simply don't notice. They get stereo sound, and they figure nothing's wrong. They don't know that the channels have been swapped, because it's not that obvious. Stereo sound on modern recordings is pretty narrow, and even when it isn't, it's rarely important which way instruments or other audio elements have been panned. You rarely memorize "this guitar is panned left, this keyboard is panned right", and you rarely notice if they've been swapped because it isn't especially significant.

Now, I notice, because I have to compensate for a weaker left ear, and if the audio channels aren't correctly assigned, I'll have problems. I'll try to balance things (through ViperFX) to make the left channel louder and only end up making the right one louder. See, if not for that, I might never even have noticed that the channels were swapped.

2. Maybe my tablet was wired wrong at the factory.

It's not a problem with my headphones. The audio is correct on every other device I use. It's only been my milletwifi where I have to alter mixer_paths.xml to get the audio right.

And I mean, look at this thread: https://xdaforums.com/t/reverse-right-left-audio-channel.3791105/

Those lines I opened this post with? It says right in the thread, this is the way things should be configured if you want to swap the left and right channels. This is specifically what those lines of code do: they swap left and right. I don't know how they could be correct.
[Galaxy Tab 4 Original Android Development] matteo0026:
Now I thought... I fixed matisse* yes, but not millet*. And the commit included the fix for speakers (which in matisse* are 2, and not just 1) and for headphones. You're right. In next build, I'll fix them. I'll start from LOS16, since I've not built it yet.
[Galaxy Tab 4 Original Android Development] matteo0026:
New build of LineageOS 18.1 is online!

Changelog:

- July 2021 security patches

- Fixed time in recovery by switching to TimeKeep (/data/vendor/time/ats_2 must be present to restore correctly,

so don't comply that date/time is wrong when you wipe data and reboot recovery)

- For millet*: added low-latency-record route in mixer_paths.xml, present on matisse* since some releases yet

- Some little source improvements (always check sources for more infos about)

Thanks to @crazydrive22 for providing me the builds (my PC can't handle 3 Android versions to build for 7 variants in a reasonable time...)
[Galaxy Tab 4 Original Android Development] FailSafeNow:
HA HA! WE FOUND IT! WE FOUND IT! EUREKA!​

Tell me, were the assignments of RX3 and RX4 correct? Because I can't vouch for what those do.
[Galaxy Tab 4 Original Android Development] matteo0026:
Yeah, leave it there, if there aren't any other issues.
[Galaxy Tab 4 Original Android Development] Ramon Jose Caballero Saba:
Thank you very much, excellent work except my tabla was going to be discarded and now I can use it for much longer. Incredible his work is magnificent

Before it was slow and had a lot of problems but now it flies 10/10
[Galaxy Tab 4 Original Android Development] SeniorMoment69:
Sorry for the noobie post have been away for 2 years and am coming back to do a Pixel 3 project. Came across my Tab 4 in the drawer and thought to see if there was anything for it here... imagine my delight to find this thread and this new ROM... so that I don't assume will this work with my model...? I have a SM-T230NU.

Thanks in advance for the assistance.
[Galaxy Tab 4 Original Android Development] matteo0026:
There's pretty nothing. I don't maintain that model because it has a different SoC
[Galaxy Tab 4 Original Android Development] SeniorMoment69:
Ahh Ok.. thank you for the clarification... and confirmation
[Galaxy Tab 4 Original Android Development] Jose_CM:
@matteo0026

In androidfilehost Matissewifi SM-T530 - T530NU I do not see the download link for this July, in the other variants it is, but not in this one.

Greetings.
[Galaxy Tab 4 Original Android Development] matteo0026:
Reuploaded now because before I uploaded a broken file, like matisselte.
[Galaxy Tab 4 Original Android Development] FailSafeNow:
I'm going insane trying to make applications use my microSD card for storage. Has anyone gotten this to work in Android 11?

I don't have my podcasts, because my podcast app can't access the card. It gets limited to internal storage only. I'm seriously considering downgrading to 10 or even 9, although I hate the way the camera wouldn't work in 9.

Can anybody help me, at all? I'm at my wits' end.
[Galaxy Tab 4 Original Android Development] matteo0026:
Did you keep the filesystem in ext4 for system, data and cache?

By the way, now OpenGapps are stable, so I'll add them in first post.
[Galaxy Tab 4 Original Android Development] FailSafeNow:
Never mind the last thing for the moment. Different thing now.

Long-press. I use the long-press options for all my buttons (Home, Recents, Back). But it's different than it was before. My long-presses are a lot shorter than they used to be. Can anyone tell me how to make them a little longer again? I like for the Back button to kill the foreground app when I long press, but I don't want it to do it THAT quickly.
[Galaxy Tab 4 Original Android Development] matteo0026:
Probably LineageOS team changed the behaviour, so it's not under my control.
[Galaxy Tab 4 Original Android Development] FailSafeNow:
I was asking in case it could be controlled via a system file like build.prop. I thought maybe, but I didn't know for sure.
[Galaxy Tab 4 Original Android Development] matteo0026:
I think that they are values defined in framework overlay
[Galaxy Tab 4 Original Android Development] reckless17:
thank you brother.I spent hours but I couldn't.I tried to install the wrong one.I uploaded the correct one because of you.and the tablet started working hours later.thank you very much again.
[Galaxy Tab 4 Original Android Development] reckless17:
hi sir.battery drains very fast.What could be the reason for the battery draining so fast?how can i fix this.thanks
[Galaxy Tab 4 Original Android Development] S@BL:
Bonjour Matteo0026, Me revoilà avec ma tablette Samsung Sm-t530 passée sous Android 11 sur laquelle mon clavier bluetooth se couple mais ne s'active pas ? Alors en attendant, j'ai testé android 10 au lieu de 11 = pas de changement pour le clavier. J'ai également installé gapps-pico au lieu de nano = pas de changement. Je sais que pour que vous m'aidiez je dois logcater mais désolé je suis novice comment faire ? J'ai installé logcat reader mais je ne comprends rien j'ai aussi testé logecat extreme mais pas mieux. Je n'arrive pas à recevoir de message logcat pour vous l'envoyer. Pouvez-vous m'aider ?

Hello, Has anyone encountered this problem of a bluetooth keyboard paired but not active on android 11 (samsung sm-t530 tablet upgraded to android 11). For several weeks I have been at an impasse: I tried android 10 lower version = identical pb. I reinstalled the whole thing with android 11 but gapps-arm-pico=pb still present. There is something blocking but what? I installed rom+gapps but is there something to do with 'Samsung USB driver for mobile phones'. If yes, which file, how? maybe that's where my problem comes from?
[Galaxy Tab 4 Original Android Development] S@BL:
Hello, I made a logcat with the logcat reader professional application and here is the result when I connect bluetooth to the keyboard. I hope it is indeed that because I do not understand the message indicated! the portion between 15:03 and 15:04

I have installed the serial bluetooth terminal application on the tablet and when I launch the connection with the bluetooth keyboard I have the following message:"connecting go 1byone keyboard puis connection failed : read failed, socked might closed or timeout, read ret:-1
[Galaxy Tab 4 Original Android Development] matteo0026:
Can I have the full logcat file, here or in PM, please?
[Galaxy Tab 4 Original Android Development] S@BL:
Hello, Hello, I managed to recover this but am not sure of my steps
[Galaxy Tab 4 Original Android Development] jimVmax:
You are the best, thank you for all your hard work. 😉👍
[Galaxy Tab 4 Original Android Development] matteo0026:
This logcat doesn't say that much. Opengapps installation log isn't needed. Use the command adb logcat from PC.
[Galaxy Tab 4 Original Android Development] Bekir_Ayaz:
sim card or gsm chip is not working, what is the solution for this?
[Galaxy Tab 4 Original Android Development] Bekir_Ayaz:
Where are these updates posted?
[Galaxy Tab 4 Original Android Development] matteo0026:
Do you have matisse3g/millet3g?

Of course, in the first post
[Galaxy Tab 4 Original Android Development] Bekir_Ayaz:
I am matisse3g Samasung Galaxy Tab 4 Sm-T532 3G TURKEY
[Galaxy Tab 4 Original Android Development] Bekir_Ayaz:
("I am matisse3g Samasung Galaxy Tab 4 Sm-T532 3G TURKEY") Um Hello
[Galaxy Tab 4 Original Android Development] S@BL:
Hi,

the debug data are in the attached file.

best regards

Hi,

I installed the latest lineage version of 14-07-2022 but the problem persists. The bluetooth pairing is done but after nothing. Settings / connected devices / Associate a device --> ok he sees it and associates it and he goes to paired device but no action. When I go to connection preferences / Bluetooth / associate a device / he sees it and when I click on it nothing more, no associate device appears?

In the debug file did you see anything?

Thank you Best regards
[Galaxy Tab 4 Original Android Development] Bekir_Ayaz:
matisse3g
[Galaxy Tab 4 Original Android Development] S@BL:
Hi Matteo0026,

I installed the latest lineage version of 14-07-2022 but the problem persists. The bluetooth pairing is done but after nothing. Settings / connected devices / Associate a device --> ok he sees it and associates it and he goes to paired device but no action. When I go to connection preferences / Bluetooth / associate a device / he sees it and when I click on it nothing more, no associate device appears?

In the debug file did you see anything?

Thank you Best regards
[Galaxy Tab 4 Original Android Development] matteo0026:
Just for the keyboard test, can you try to flash the release of 09-10-2020 of LineageOS 16? From that point, I've touched the kernel by removing some stuff, probably I could have removed the HID driver that is needed to make your keyboard working.
[Galaxy Tab 4 Original Android Development] S@BL:
hello, ok so I just change the following files

lineage-16.0-20201009-UNOFFICIAL-matissewifi.zip

open_gapps-arm-9.0-pico-20200521.zip

and I keep these

Samfw.com_SM-T530_XEF_T530XXS1BRH1_fac (AP/BL/CSC)

twrp-3.5.2_9-0-matisse.tar

, that's right and so I switch to android 9 instead of 11 to test, is that right?

I test and tell you again if the keyboard works right away

Thanks a lot...
[Galaxy Tab 4 Original Android Development] matteo0026:
Even without gapps, just a clean install to lineage 16. Yes please, do this test. Thanks
[Galaxy Tab 4 Original Android Development] S@BL:
ok I'm trying it's in progress thank you

So when I resumed the entire installation I did lineage 16 then I kept open-gapps arm 112 pico here is the error message: "Error code: 20 unmouting partitions

Updater process terminated with error: 20 Error installing zip file: sdcard/opengapps 11

ended

Ah, I think I misunderstood. I install lineage 16 without gapps and restart the system reboot is that it? but the tablet doesn't need gapps to work? Am I testing my bluetooth keyboard at this stage?

Hello again, The keyboard works in querty and not azerty but hey I guess you just have to change an option? now what do i do? I have to install a gapps I suppose to be under android 11? I await your return to continue testing with you. I'm happy to find my bluetooth keyboard ;-) I'm waiting for your instructions for the rest.

Does this mean that the problem came from lineage 18.1 or gapps arm 11? do I have to test again but only with lineage 18.1 without the gapps pico 11?
[Galaxy Tab 4 Original Android Development] matteo0026:
Ok, as I thought, I have to re-enable some HID drivers, that can be done and I'll fix that in next build (so, to answer to your question, the issue was with the build itself, not the GApps). GApps aren't needed to make the tab working since the GApps are just apps that are installed in a second moment. Of course, if you change android version, you have to change GApps version to match the android version.

About the keyboard layout, yes, it can be changed in the languages/keyboard settings.
[Galaxy Tab 4 Original Android Development] S@BL:
ok good and good I'll wait impatiently for the next version which I'm sure will be perfect ;-) Thank you very much for this time you devoted to me it's very nice. Goodbye
[Galaxy Tab 4 Original Android Development] Tres_Tigers:
Hey, I don't know if it's my lack of understanding or it is having issues, but I can't install the most recent TWRP 3.6.# for the matissevewifi to my matisse Wifi tablet. According to Odin, it was a size issue, so I tried the next one, the just plain Matisse.

I managed to install it, but I'm unsure as to what my device is going to think it is and will be testing this out later..

However, why can't I install this file, and if it's a storage problem, then, why is it even available if I can't install it to the device (it's supposed to be on)?
[Galaxy Tab 4 Original Android Development] Venderwel:
Hello, lineage OS newby here! After trying for a while (on and (more) off over a long period), I finally get to install a Lineage OS version on my Samsung Tab 4 (T530). I installed lineage-18.1-20211010-UNOFFICIAL-matissewifi.zip. After starting it up, it says it can't detect the Sim Card. I don't have a Sim card option on this tablet. How do I fix this?
[Galaxy Tab 4 Original Android Development] Tres_Tigers:
Where are these builds at?

The download links don't work, and they aren't on the Telegram chat.
[Galaxy Tab 4 Original Android Development] matteo0026:
Tomorrow I'll upload them on Telegram too. I might have to think to upload on Telegram by default too, instead of just in case AFH doesn't work.
[Galaxy Tab 4 Original Android Development] Venderwel:
Just tried lineage-18.1-20220611-UNOFFICIAL-matissewifi, but still have the Sim Card not detected message. I don't have a sim cars slot, I have the wifi version. How can I fix this?
[Galaxy Tab 4 Original Android Development] matteo0026:
Just press skip in the screen of the initial setup. I can't hide that message.