yashsingh1/xdaforums huggingface dataset:
[Galaxy Tab 4 Android Development] crazydrive22:
https://crdroid.net/​

crDroid is a LineageOS-based CustomRom.

This one is based on LOS 18.1.

Special Thanks to matteo0026, who is maintaining the device sources and TWRP.

Disclaimer

I am not responsible for lost data, identity theft, lost money, security vulnerabilities, bricked devices or any other hardware or software malfunctions or a nuclear war that comes as a result of flashing this ROM. Please make also be sure that you have always a full backup ready. Best to use: Nandroid Backup via TWRP

Installation instructions :

Be sure to have installed the latest TWRP recovery (you can find it in downloads)

Download the latest build and GApps (ARM, 9.0, I advice pico package) and copy it to your

external

SD-Card

Make a full Backup of your Data and copy it to your external SD-Card or USB-OTG

Boot to recovery mode

Wipe > Advanced wipe > Select system, data, cache and dalvik/art cache (and, if you want to clean more, select even internal storage, which deletes all the content in /sdcard) and do swipe to wipe. Format /data. When it's finished go to home page

Install > select ROM zip file > swipe to flash and when it's finished go to home page

Do the same thing to flash GApps and Root (if needed)

Reboot > System

Update instructions :

Be sure to have installed latest TWRP build

Download the latest build

Boot to recovery mode

Install > select ROM zip file > swipe to flash and, when it's finished go to home page

Reboot > System

Known issues :

Maybe Mirrr Screen is broken

Maybe Uplink to Chromecast not working

Downloads :

matisse (10.1) devices:

Androidfilehost

,

Mega

millet (8.0) devices:

Androidfilehost

,

Mega

Millet and Matisse via Github

Other Stuff

TWRP Recovery Matisse and Millet: XDA,

Mega

, Matisse, Millet

GApps:

https://opengapps.org/

(ARM, 11, Best to use is Nano or Pico) or

GApps:

MindTheGapps

Magisk: https://github.com/topjohnwu/Magisk

Contributors:

crazydrive22, matteo0026 and all the S3NEO devs that provided the base for developing Pie on Tab 4

Source Code:

https://github.com/lineageos for samsung msm8226 common device and kernel source, with some patches coming from Gerrit for device source

https://github.com/s3neo for matisse and millet and specific variants device and vendor source

Thread started at 2021-06-13

Thread updated at 2022-06-15
[Galaxy Tab 4 Android Development] crazydrive22:
All new builds are up.

Changelog:

-June Security Patch

-synced with LOS-Source

-some changes under the Hood by @matteo0026
[Galaxy Tab 4 Android Development] crazydrive22:
T331 and T531 Users please check if SIM is working on your Device.
[Galaxy Tab 4 Android Development] groulo:
probado en mi T535 y la SIM no funciona. Error de SIM no admitido, empresa bloqueada.

la SIM en crDroid 6.18 funciona perfectamente
[Galaxy Tab 4 Android Development] crazydrive22:
I've updated 6.18 to 6.19 yesterday. And Today 7.7 will come.

The Update for T531 is uploaded, maybe you could try this, too?
[Galaxy Tab 4 Android Development] groulo:
sorry, I have put the model wrong, I have tested it on T535
[Galaxy Tab 4 Android Development] crazydrive22:
Ah, ok. The SIM at T535 is working. It looks like, your Provider isn't supported.

Maybe @matteo0026 can fix that.

What is your Provider?
[Galaxy Tab 4 Android Development] groulo:
the sim works for me
[Galaxy Tab 4 Android Development] matteo0026:
It's quite strange... For someone SIM works, for someone else no. I'm always more sure that if someone puts the right SIM, it works in t331-t531 too
[Galaxy Tab 4 Android Development] crazydrive22:
New Builds are up!

-June Security Patch

-updated to 7.7

-Thanks to @matteo0026 we have a nice plus of Performance

Enjoy
[Galaxy Tab 4 Android Development] ercanziyanak:
crazydrive22​

matteo0026​

groulo​

hello. I'm using the crdroid 6.16 matisse3g version (SMT531). I get the error "The system interface has stopped" and the Wifi connection is disconnected and reconnected or I say connect it. Are these problems solved in this new version? I need a fast system-free rom, which version do you recommend? I need bluetooth, I need wifi, I need magisk module.
[Galaxy Tab 4 Android Development] matteo0026:
There shouldn't be any problems at wifi side. Update the ROM, or just test LineageOS 16, which I know for sure that's the most stable one.
[Galaxy Tab 4 Android Development] ercanziyanak:
Is linage os 6 the most stable version. Can I install Magisk module. I want it to be a fast rom. It's already an old tablet. Cr is stuck in 16.6 version, it freezes
[Galaxy Tab 4 Android Development] matteo0026:
It's the most stable and the fastest. But even the latest crdroid shouldn't be bad. All Android 9, 10 and 11 ROMs support Magisk.
[Galaxy Tab 4 Android Development] groulo:
I have tested in T535, the crdroid 6.19 and crdroid 7.7. I haven´t any problem, wifi ok, bluetooth ok.

in T330 crdroid 6.18 I haven´t any problems.

my tablet have a second youth.
[Galaxy Tab 4 Android Development] ercanziyanak:
There may be an error in my modem. I'm sorry. My tablet is Sm-t531. Since it is old, I think it will slow down android 11 or something.

matteo0026 suggested lineage os 16.​

My goal is a fast smooth rom.I was undecided what you would recommend.​

groulo​
[Galaxy Tab 4 Android Development] groulo:
ercanziyanak​

the only difference is that the T535 is 4G LTE and the SM-T531 is 3G, all the Hardware is the same.

I have installed CRDROID 7.7 in my T535 and at the moment I am very content, thanks to the work of

@crazydrive22​

@matteo0026​
[Galaxy Tab 4 Android Development] ercanziyanak:
okay thanks
[Galaxy Tab 4 Android Development] crazydrive22:
I've uploaded new Builds for all Devices.

@matteo0026 fixed the wrong time in TWRP.

With this and the following Builds the Time in TWRP should be correct again.
[Galaxy Tab 4 Android Development] double b26:
hey thanks to the dev for this rom! gave this old tablet new lease on life... i just flashed on the 10 inch tablet wifi only model. seems to be working great.

cameras both work, but the first time i tried taking a pic with rear cam, it acted like it took a pic, but did not. on second attempt, it worked as expected. forward facing cam did fine on first try.

i have a 128gb card in the slot, which is fully recognized.

just so people know, google apps are NOT preinstalled, as mentioned above, grab a gapps pack if you want google bloatware installed.

i havent had a chance to stress test or try advanced features yet, but so far, very nice rom. many thanks.

on 2021-06-22 ....

Samsung Tab 4 10.1, SM-T530, wifi-only tablet (matissewifi)

running TWRP v 3.4.0-32

downloaded rom zip onto the sd card (crDroid 7.7)

booted to twrp (home + vol up to enter recovery)

wiped system, data, caches (not internal storage or external storage tho)

flashed the rom from SD card

went home on twrp and rebooted the system

took a few minutes to get going, but once it did, was finished booting in about 10 minutes or so.

as usual, allowed it to "settle" for a few more minutes after fully booted

my hopes were to be able to debloat and update the OS, and use the device as an E-Reader, but this rom seems to be so smooth, i may be able to use this old tablet for much more than just reading books.

im glad to see people still developing custom roms for android devices. the ability to de-google a device is more important than ever, given the times we find ourselves in. when i get some extra money in, i intend to buy the dev a beer. cheers.
[Galaxy Tab 4 Android Development] crazydrive22:
Probably never. LineageOS made a big change from ipTables to eBPF. The 3.x Kernel from legacy Devices (and so our Tablets) is not able to handle this. Kernel 4.9 (and 4.4 in the future) is required as minimum. Matteo is looking for a solution but there is a chance that our Tablets will stay and in the end die with LineageOS 18.
[Galaxy Tab 4 Android Development] d_a_ugono:
How did many other legacy devices like the Galaxy S2, Galaxy S3, Galaxy S3 Neo, and Galaxy Note 10.1 get LineageOS 19.1 then?
[Galaxy Tab 4 Android Development] crazydrive22:
They managed it to patch it somehow or backported a 4.4 or 4.9 Kernel.
[Galaxy Tab 4 Android Development] d_a_ugono:
Can you or Matteo somehow port a 4.4 or 4.9 kernel to our tablets or make LineageOS 19.1 builds with modifications to make it work on devices with a 3.x kernel?
[Galaxy Tab 4 Android Development] crazydrive22:
Porting is very complicated and we're no programmers. Matteo is trying to implement some patches atm but with no success so far.
[Galaxy Tab 4 Android Development] d_a_ugono:
Do all Android 12/12L ROMs require a newer kernel than the kernel on our tablets, or just Lineage OS 19.1-based ROMs?
[Galaxy Tab 4 Android Development] crazydrive22:
I think all ROMs are affected. My S7 also needed some patches for Pixel Experience. This eBPF is not a new thing. It's established since A9 (LOS16) but LineageOS fixed it for legacy Devices. With 19 they stopped doing that.
[Galaxy Tab 4 Android Development] d_a_ugono:
Can you implement the eBPF patches from LineageOS 18.1 into LineageOS 19.1?
[Galaxy Tab 4 Android Development] crazydrive22:
Matteo tried but the ROM is not booting.
[Galaxy Tab 4 Android Development] Stephco03:
I don't have a sd card
[Galaxy Tab 4 Android Development] crazydrive22:
Ok 🤔

Maybe Playstore is corrupted. You can try to install a different or updated Package of Gapps.
[Galaxy Tab 4 Android Development] Stephco03:
For install Android 12 and plus, create Android rom with project treble, no ?
[Galaxy Tab 4 Android Development] crazydrive22:
Unfortunately no.

Our Devices are not able to use Treble (only Devices with original ROM 8.1+) so GSI is not working.
[Galaxy Tab 4 Android Development] crazydrive22:
New Builds are uploaded

Changelog:

-updated to Version 7.20

-synced with LOS-Source

-Security Patch 2022-07-05
[Galaxy Tab 4 Android Development] d_a_ugono:
What's the fastest and most stable Android 11 ROM: Matteo's LineageOS 18.1 ROM, your crDroid 7 ROM, or your CypherOS ROM?
[Galaxy Tab 4 Android Development] crazydrive22:
LOS18, crDroid, Cipher

In this order.
[Galaxy Tab 4 Android Development] d_a_ugono:
I've been trying to backup to Nextcloud with Seedvault, but Seedvault keeps showing Backup failed or Backup running stuck at a percentage. Nextcloud keeps showing Upload failed, unable to connect to the server. Seedvault was working fine with backup to internal storage, but I changed backup location to Nextcloud since my internal storage was getting used up.

@crazydrive22
[Galaxy Tab 4 Android Development] crazydrive22:
New Builds are uploaded

Changelog:

-updated to Version 7.21

-synced with LOS-Source

-Security Patch 2022-08-05
[Galaxy Tab 4 Android Development] crazydrive22:
New Builds are uploaded

Changelog:

-updated to Version 7.22

-synced with LOS-Source

-Security Patch 2022-09-05
[Galaxy Tab 4 Android Development] crazydrive22:
New Builds are uploaded

Changelog:

-updated to Version 7.23

-synced with LOS-Source

-Security Patch 2022-10-05
[Galaxy Tab 4 Android Development] RaZrCat:
in milletwifi device when i deactivate the wifi connection the system user interface stops working any solution for this error? Thanks...
[Galaxy Tab 4 Android Development] crazydrive22:
Yes, don't deactivate it. :LOL:

Nah, for real, this ROM is unfortunately EoL. The crDroid Devs moved to Versions 8 and 9, the Source for 7 is abandoned. No one will fix there anything. I'll build as long as the Source is working and only God and Google knows, how long this will be. I'd recommend to switch to LineageOS 18.1 or Cipheros11 (also near EoL). The other bad News is, that we are not able to run A12 on our Tablets because of a big change in LineageOS Sources (eBPF instead of IPtables). There's a good chance that the Tab 4 will die with LineageOS 18.1
[Galaxy Tab 4 Android Development] RaZrCat:
Thanks a lot for the info bro! 😝
[Galaxy Tab 4 Android Development] crazydrive22:
New Builds are uploaded

Changelog:

-updated to Version 7.24

-synced with LOS-Source

-Security Patch 2022-11-05
[Galaxy Tab 4 Android Development] sharp3r:
Hi guys,

I'm trying to install this rom on sm-t330 but it fails with the message below. How can I fix this? it looks like the name of the device is gone!

ty!
[Galaxy Tab 4 Android Development] crazydrive22:
Maybe the file is corrupted. Download it from Mega and try again.
[Galaxy Tab 4 Android Development] sharp3r:
I downloaded it from mega and checked the md5, it matches
[Galaxy Tab 4 Android Development] crazydrive22:
Did you had 7.23 running?
[Galaxy Tab 4 Android Development] sharp3r:
No, I was on stock rom
[Galaxy Tab 4 Android Development] sharp3r:
ty @crazydrive22

I've got it fixed. I reflashed twrp
[Galaxy Tab 4 Android Development] crazydrive22:
Ok. Do you have the latest Version of TWRP? It should be 3.7.0_9-0 (3.6.2_9-0 should also work). If no, install it. If yes, try to install a other ROM (crDroid, Cipher, Lineage) to find out, if that works.
[Galaxy Tab 4 Android Development] crazydrive22:
Allright 😊
[Galaxy Tab 4 Android Development] d_a_ugono:
The "LineageOS Ultra Legacy" team have fixed most of the BPF issues. The Galaxy S2 has an Android 13 ROM, and it boots.

Here is the thread: https://xdaforums.com/t/rom-unofficial-13-0-0-r11-i9100-lineageos-20-0-alpha.4507443/

Here is the LineageOS Ultra Legacy page on GitHub: https://github.com/lineageos-ul
[Galaxy Tab 4 Android Development] crazydrive22:
New Builds are uploaded

Changelog:

-updated to Version 7.25

-synced with LOS-Source

-Security Patch 2022-12-05
[Galaxy Tab 4 Android Development] pokadan:
Thank you so much :)
[Galaxy Tab 4 Android Development] Sopwith07:
This is an excellent rom. Running it now, pretty smooth. Thanks for your work, yo.
[Galaxy Tab 4 Android Development] coolpixs4:
Thank you the Dev.Team for sharing an Dev.ROM for an old device...alive

I checked in device info it shows as SM-T530 2/16GB white (it doesn't have sim card, so I guess it is wifi version only)

I follow the guide on the first page and have done

- flashing TWRP twrp-3.6.2_9-0-matisse.zip (boot in recovery success)

- Format data + advanced wipe/clear Data, System, Davik cache, cache (without wipe internal storage) - reboot twrp recovery success

- Flash ROM (without error)

- Flash pico gapps (without error)

....

How long does it take for the first boot after flashing ROM?,

It took so long for me 30 mins and on ....without any sign....just showed "Samsung GALAXY Tab4"

I installed ROM from internal storage since I don't have an sdcard insert (Coming from Original Stock ROM 4.4.2)

What should I do? I did do something wrong?

Thanks !

EDIT1:

Reflash stock ROM 5.0.2 @

T530XXU1BQD2_T530OJV1BPL1_XSG.zip (https://androidfilehost.com/?fid=889764386195927612)​

over Odin3_v3.13.3 success

Then re-try it...with

lineage-18.1-20211010-UNOFFICIAL-matissewifi.zip

and NikGapps-core-arm64-9-20201231-signed.zip

SUCCESS BOOTING....😊👍

EDIT 2:

Reflash crDroidAndroid-11.0-20221213-matissewifi-v7.25.zip

SUCCESS BOOTING....😊👍😊👍

Could we root this ROM by Magisk20.4 +?
[Galaxy Tab 4 Android Development] coolpixs4:
I'm trying ...

[6.0-12.0][Magisk]Dolby Digital Plus[upd.20211005]​

[6.0-12.0][Magisk]Dolby Digital Plus[upd.20211005]

Dolby Digital Plus for 9.0-12.0 OS Need selinux permissive Hi. I present the mod Dolby Digital Plus (interface and functionality is the same as that of Dolby Atmos). Theoretically should work on OS 6.0-9.0. I checked only on Oreo and Pie...

xdaforums.com

BUT failed...

It requires "SELinux permissive"

How can I enable this ?

Could we root this ROM by Magisk20.4 +?
[Galaxy Tab 4 Android Development] crazydrive22:
Ah, nice. You found the solution. It was the bootloader from ROM 4.4.2, what is only able to boot Custom Roms like CyanogenMod. LineageOS and derivates needs bootloader 5.0.2.

You can update your TWRP with this:

Galaxy Tab 4 LOS/TWRP releases

t.me

Just flash it via TWRP
[Galaxy Tab 4 Android Development] crazydrive22:
You can try to switch it with a tool like this

[APP][TOOL][2.0+][OFFICIAL]The SELinux Switch

The SELinux Switch . What's The SELinux Switch & What Makes It Different from The SELinux Toggler? I'll outline this in brief since it would take too much time and space in explaining everything in detail. Primarily, The SELinux Switch was...

xdaforums.com
[Galaxy Tab 4 Android Development] crazydrive22:
New Builds are uploaded

Changelog:

-updated to Version 7.26

-synced with LOS-Source

-Security Patch 2023-01-05
[Galaxy Tab 4 Android Development] 4ndr01d-64:
Thanks, i just installed the rom and everything seems to work good and fast
[Galaxy Tab 4 Android Development] Sopwith07:
I second @4ndr01d-64, this is the fastest I've ever seen this tablet move. Smooth and stable. Amazing. Thank you sir!
[Galaxy Tab 4 Android Development] crazydrive22:
New Builds are uploaded

Changelog:

-updated to Version 7.27

-synced with LOS-Source

-Security Patch 2023-02-05
[Galaxy Tab 4 Android Development] TomL2:
Thanks! Working great on my matissewifi.

Is there any list of the fixes/upgrades/features of this release?

Thanks again...love it.
[Galaxy Tab 4 Android Development] crazydrive22:
Yes, there is https://crdroid.net/

Please be aware this Version of crDroid is near EoL, so no new features will arrive. There are Security Updates as long as the DEVs from crDroid decide to maintain 7.XX and I don't know how long this will be. Versions 8 and 9 are unfortunately not available for our Tablets.
[Galaxy Tab 4 Android Development] Exepan95:
Security Patch the reason he turns the time back to February when I'm in March when there is no Internet after a reboot for a couple of seconds I see this
[Galaxy Tab 4 Android Development] crazydrive22:
New Builds are uploaded

Changelog:

-updated to Version 7.28

-synced with LOS-Source

-Security Patch 2023-03-05
[Galaxy Tab 4 Android Development] TomL2:
Updated my T530NU and running successfully. Thanks for all your great work!
[Galaxy Tab 4 Android Development] ROM_gamer987:
Wondering if you tried to bring up los 19/20, i couldn't get it to build
[Galaxy Tab 4 Android Development] ROM_gamer987:
Bit of an update, tried flashing this on my tab 4 (T530) From 4.4.2, After flashing i'm stuck on the tab 4 boot splash, I can't reflash original fw from odin as this device has a broken usb data pin. I tried getting all of the partitions from stock fw zip (5.0.2) and flashing manually by creating a twrp zip. All the partitions flashed but it still won't boot. I'd also like to point out that it boots in the background as i can hear the lock/unlock sound but it stays in that splash (not bootanimation, galaxy note 4 splash)
[Galaxy Tab 4 Android Development] TomL2:
Sorry to hear that.

I just did a dirty flash over 7.27 which went smoothly.
[Galaxy Tab 4 Android Development] crazydrive22:
New Builds are uploaded

Changelog:

-updated to Version 7.29

-synced with LOS-Source

-Security Patch 2023-04-05
[Galaxy Tab 4 Android Development] TomL2:
Thanks once again. Happily running on my TAB 4
[Galaxy Tab 4 Android Development] skdev:
is this ROM working on Galaxy Tab SM-T330 wifi version?
[Galaxy Tab 4 Android Development] TomL2:
I only know that it works great on a SM-T530NU (matissewifi)
[Galaxy Tab 4 Android Development] crazydrive22:
New Builds are uploaded

Changelog:

-updated to Version 7.30

-synced with LOS-Source

-Security Patch 2023-05-05
[Galaxy Tab 4 Android Development] SuperUser008:
Great work, crazydrive!

Do you know where to download the latest vendor firmware? If there is any
[Galaxy Tab 4 Android Development] TomL2:
Thanks - once again working great on my TAB 4.
[Galaxy Tab 4 Android Development] crazydrive22:
New Builds are uploaded

Changelog:

-staying at Version 7.30 for now

-synced with LOS-Source

-Security Patch 2023-06-05

From now new Builds are also available from Github but not longer from AndroidFileHost.

AFH is broken very often and now i'm done with it. You can find the link in OP.
[Galaxy Tab 4 Android Development] Martinez141.c:
Hi, i want to install this ROM, i have a 531 ( Argentina ), but there is not a lollipop firmware for my country,what should i do? Everytime i flash a lollipop firmware for this device i got stuck on Samsung logo
[Galaxy Tab 4 Android Development] crazydrive22:
I've decided to update to 7.31, it's online from now.
[Galaxy Tab 4 Android Development] crazydrive22:
It looks like South America didn't get 5.0.2 at all. Try something from North America or Europe.

[Tool] Frija - Samsung firmware downloader/checker

* * * PLEASE UNDERSTAND WHAT YOU ARE INSTALLING TO YOUR DEVICES AT ALL TIMES AND ME AND THE DEVELOPER ARE NOT RESPONSIBLE FOR ANY SORT OF DAMAGE TO YOUR DEVICE * * * Hey Guys :) Frija is a new tool (successor of now depreciated tool SamFirm)...

xdaforums.com

Samsung Galaxy Tab 4 Firmware Download SM-T531 Free Download

Samsung Galaxy Tab 4 Firmware Download SM-T531 Free Download ⭐ Official and fast update ⭐ Max speed and free download ⭐ Best Samsung Galaxy website

samfw.com
[Galaxy Tab 4 Android Development] SPG_4545:
Would crdroid 8 boot on galaxy tab 4
[Galaxy Tab 4 Android Development] crazydrive22:
Unfortunately we were not able to run A12 or A13 on our Tablets, so therefor there's not crDroid 8 or 9.
[Galaxy Tab 4 Android Development] TomL2:
7.31 running nicely on my matissewifi. Battery management seem better then it has been.

Thanks!
[Galaxy Tab 4 Android Development] Paja-Jaja:
Where can I download 7.31?
[Galaxy Tab 4 Android Development] Paja-Jaja:
I already found it thanks :D
[Galaxy Tab 4 Android Development] crazydrive22:
New Updates are online

Changelog:

-updated to Version 7.32

-synced with LOS-Source

-Security Patch 2023-07-05
[Galaxy Tab 4 Android Development] crazydrive22:
Good Lord, I completely forgot the announcement. :D

New Builds are uploaded

Changelog:

-updated to Version 7.33

-synced with LOS-Source

-Security Patch 2023-08-05
[Galaxy Tab 4 Android Development] klingklang01:
hello, I've resurrected this old tablet (sm-t330 wifi) to use strictly as a GPS navigation unit . I've installed this Rom as soon as I had power. Everything looks good except that I only have 2.4ghz. I don't remember if that unit was able to pickup 5ghz before and it is a limitation or it is a problem?

twrp install:

wipe: dalvik, system, cache,data

V7.33 millet wifi

Opengapps nano arm 11

Magisk 26.1
[Galaxy Tab 4 Android Development] crazydrive22:
It should be able to run 5 GHz WiFi. If you'll use it as a Navi only you could try to install CipherOS (built by me) or LineageOS (built by Matteo0026, bc of better performance.
[Galaxy Tab 4 Android Development] TomL2:
I've been pretty happy with the crDroid builds. What kind of improvements should I expect with CipherOS (new to me) or LineageOS (which I used a little in the past)?

BTW - Thanks for keeping these old tablets running. I really appreciate your work.
[Galaxy Tab 4 Android Development] crazydrive22:
Better performance. CipherOS is not that full of "Gimmicks", so it feels more agile.
[Galaxy Tab 4 Android Development] asteinberg:
Excellent performance! Smooth and fast. Kudos to the developers. It works really very well. The only thing I couldn't get it to work is the 5Ghz wifi
[Galaxy Tab 4 Android Development] klingklang01:
Thank you. Just tried the CipherOS as you suggest and still no 5ghz wifi. Any idea on what to look for?
[Galaxy Tab 4 Android Development] crazydrive22:
Please check in settings/about the phone if there is a WiFi mac visible for both frequencies.

And please check your router if WiFi 5 is enabled and/or new Clients are allowed at the network.
[Galaxy Tab 4 Android Development] klingklang01:
With all the computers, tablets, Ipad and phones in this house running 5ghz....it is surely not the routers (Tp-Link Archer A9). I do see only one Mac address. Thank you.