yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] batouttahell24:
The website only goes up to Android version 10.0. Also whenever I flash TWRP, my device black screens whenever I try to boot into recovery. ADB however shows that the device IS in recovery which is a good sign.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] nubianprince:
check the main post all the information is there, there is a link that specifically addresses the black screen issues
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] batouttahell24:
Alright, thanks! How should I download the 11.0 GApps? The website only goes up to 10.0.

EDIT: Found a sourceforge repo with Gapps 11.0. Which one is recommended? Stock or something else?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] EonOfBlack:
Micro
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] batouttahell24:
So use micro from here? These are the only 11.0 ones I could find.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] nubianprince:
Try pico, that should be enough.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] batouttahell24:
Thanks! One more question: when I fish the Marshmellow ROM, do I need to go through the setup or can I just reboot back into Download Mode and flash TWRP?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lividhen:
You can just reboot back into download mode.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] batouttahell24:
Alright, thank you!

EDIT: Might just boot into Marshmellow, ;put all the required files on my Internal Storage, and then flash TWRP to make things easier.

EDIT 2: Flashed Marshmellow but am now on the flashing "Samsung" logo...hasn't booted and has sincestayed on this screen. Eventually it said that TouchWiz stopped responding, but hitting OK rebooted it to the "Samsung" flashing screen.

EDIT 3: Nevermind, it worked!
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] batouttahell24:
I assume this is going to take a while. I’ve flashed crDroid, GApps, and Magisk (in that order) with wiping the cache after every flash. I have since rebooted the system and am on a weird hiroglyphic (or however you spell it) eye screen.

EDIT: Is it normal to be on this screen for more than like 40 minutes?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] batouttahell24:
Tablet turned off, I think it overheated. Turned it back on, we'll see what happens.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] batouttahell24:
Do I need to re-flash the custom ROM? I haven't actually booted into the homescreen yet.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] nubianprince:
Sounds like you missed a step somewhere.

Sounds like you missed a step somewhere.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] batouttahell24:
I flashed the ROM, GApps, and Magisk in that order...and now I'm realizing that I didn't wipe all the other ****.

At least I'm not totally ****ed, I just need to reboot the system somehow.

Am I good with just wiping everything the next time I can boot into TWRP or do I have to re-flash everything before wiping?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lividhen:
If you need to force reboot, hold volume down home and power. You should just need to wipe data and both caches. You can also wipe system if you want to be safe, but you will need to ash the rom zip again.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] batouttahell24:
Just wiped everything, I'm now re-flashing the xips so hopefully this works.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lividhen:
Small selinux thing, when enforcing the lcd brightness cannot be changed through settings. It can be turned on and off, and the brightness can be changed by manually writing to /sys/devices/soc.0/1a00000.qcom,mdss_mdp/qcom,mdss_fb_primary.133/leds/lcd-backlight/brightness, but by any other means it does not work.

I have noticed (unrelated to selinux), this rom seems to run a lot cooler (40-70 rather than 50-80) than the Q one. The speaker is louder too 👍.

(Happy 4th Of July to those who live in the US too!)
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] retiredtab:
Recreate the problem and run this command from your desktop. It will generate the correct policy/ies that needs to be implemented into code and compiled.

adb pull /sys/fs/selinux/policy && adb logcat -b all -d | audit2allow -p policy
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] nubianprince:
Try the latest build
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lividhen:
I still seem to get RenderEngine: GL error: Drawing blur mesh -> 0x0502 and the phase-y ui when blur is enabled. Dirty and clean flashes have the same effect.

Also, unrelated to only the latest build, livedisplay does not work. It's basically a blue light filter, which I thought was all software, but that does not seem to be the case.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] nubianprince:
live display should now work in build 2021-07-08
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Viking8:
So far so good on this ROM as long as you do a clean install. I did a dirty flash of 7/7 over the 6/27 build and it ran horribly, so I did a clean install of 7/8. At first it was not running well, but after a reboot, things are running very nicely.

EDIT 7/29-2021: I haven't had time to test for some time, but for the past couple days I've been using my tablet and it is running so slow it's just not usable at all. I'm going to do another clean install and see what happens.

EDIT 8/3/2021: Unfortunately the 7/8/21 version of this ROM is so slow it's unusable unless I go into Dev options and limit background processes to 3 at most. Then it works decently, but I have noticed that the battery drains rather quickly regardless of what I do.

EDIT 8/6/2021: After using my tablet for a couple hours, it started to really slow down even though background processes were limited to 3 at most. I needed to reboot, but it took a very long time to register any inputs from screen taps and physical button presses. During this period of use, I only had one app open.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] batouttahell24:
Can't seem to get the latest build update OTA, I got into crDroid Settings > About crDroid > Updates > Refresh but it doesn't show up. What should I do to update?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lividhen:
Ota updates only work for officially maintained crdroid roms. This one is unofficial, so you can just download the new zip, and flash it in twrp. You don't need to wipe data if you are staying on the same android version (and are not switching to another rom.). I would recommend wiping cache/dalvik cache though.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] batouttahell24:
Yeah, I’ll probably wipe the caches before flashing with TWRP. Thanks for the help!

I’m staying on this rom, so I assume I’ll only need to wipe the caches.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] FurkiCan:
Hello, It has been a very nice project, this rom is it stable?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lividhen:
While it seems to be mostly stable now, I do occasionally experience a very occasional random crash or lock up.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] FurkiCan:
Okey Thanks
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] dr7815:
Thank you nubianprince for your work on this rom. It's been working well. I do get a system message saying "SELinux is not enforcing, your security has been weakened". Is there something I need to do to fix this?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] nubianprince:
The ROM was built with a permissive kernel so this is normal
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] kerta1n:
Hello, I am running the latest 3.5 build of TWRP, and I can't seem to boot into the ROM. According to Hagrid from Discord, this device used DM-verity of which doesn't flash. (flashing the dm-verity disabler results in error code 1, multi disabler results in error code 3). Are there any other dm-verity zips I should use or something I'm doing wrong?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] kerta1n:
Also the order of zip flashing is ROM, GApps pico 11.0, Magisk 23.5, and then dm-verity disabler 6.0
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] FurkiCan:
Hello, I can't assign your rom Twrp 3.5.0 3.3.1 I couldn't assign them I went back to Marshmellow Version I threw twrp When I tried to mount it gave an error like md5 File Not Found pls help me Im sorry Google translate
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lividhen:
Are you trying to flash twrp 3.5.0 using another version of twrp, or via ODIN3?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] FurkiCan:
3.07?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lividhen:
Where did that zip file come from? The ones nubianprince has for download are .img files.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] FurkiCan:
I do not understand?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lividhen:
Where did you obtain the zip you are flashing in twrp?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] nubianprince:
I have no idea what you are referring to.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] nubianprince:
Install the TWRP build in this thread or visit the thread where you found this TWRP version for support.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] kerta1n:
If I attempt to flash your crDroid ROM and then GApps, the tablet gets stuck on the logo. I don't know if this is right or not but I need to flash a DM-verity disabler which is supposed to prevent the tablet from getting stuck? Mainly what I'm trying to say is that if I flash just the ROM and GApps thru TWRP and then reboot to system, the tab doesn't boot into the OS, and if I try to flash the DM-verity disabler on top of that, I receive an error that the ZIP cannot be installed.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] nubianprince:
Why are you flashing DM Verity disabled? What tablet are you trying to flash this ROM on?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] kerta1n:
I do indeed have the SM-T350. IIRC it is to fix the bootloop issue that I get (set warranty bit: kernel) which prevents me from booting into the ROM.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] nubianprince:
Is this a clean flash? Have you tried formatting data on the device?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] kerta1n:
Yep, as soon as I booted into TWRP I cleared everything except for the OTG and SD card. I flashed both the ROM and Gapps, cleared cache/dalvik and then rebooted to now what is the 'set warranty bit: kernel' error.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] nubianprince:
This sounds like a bootloader error, flash the latest stock ROM for the device then try again
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] kerta1n:
I did that once but will try again. Do you recommend any other sites besides sammobile?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] nubianprince:
you can try samfirms
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] ovalseven:
Where can I get this, or any of the other builds?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Techguy777:
Thats normal the yellow words in the top left of the screen is normal kernel means rom is booting to system and if it says recovery its booting into twrp LOL. You dont need the dm verity zip with this old of a tablet

Im flashing the rom so far so good

You do twrp 3.5.2

wipe advance wipe

system

data

cache

install zips latest crdroid android 11 zip

gapps official arm 32 v7 nano or pico on gapps site

magisk v23 rename apk to magiskv23.zip and itll flash root

also the tab is extremely slow it takes time to build cached than after you use the apps A little while it will start working better.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Techguy777:
So far the tab A is actually running better on android 11 than android 10. Thats good because I couldnt handle it. I have a tab S6 but keep my tab A updated for ****s
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] ovalseven:
This has been my experience as well. I'd install the stable release mentioned in the OP, but it's not linked.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Techguy777:
What firmware are you on? I ask because I left mine on marshmallow and they have always been so slow there not really usable so maybe nougat would be better
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] ovalseven:
I was on Nougat, but flashed Marshmallow before installing crDroid. Did that to fix the backlight issue I was having with TWRP.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Techguy777:
And now the roms are slow that's what I thought. We need to be on nougat firmware to have them run better because he's probably using the nougat kernel source code.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] kerta1n:
I know it's normal but it never got off of that Galaxy logo after I flashed crDroid... but by slow do you mean it will take a while to boot into crDroid itself?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] ovalseven:
Is there any way to get touch-sounds to work with the back button?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Techguy777:
I'm saying that the roms are always slow once they do boot up. But now I think it's my fault for being on marshmallow firmware instead of nougat. Because he probably uses the nougat source code from Samsung kernel
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] ovalseven:
When the quick setting menu is swiped down, the whole screen goes dark. Is this supposed to happen?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Techguy777:
No not really but I have trouble with quick settings on crdroid 7.8 on my S7 to. It might be in there coding
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lividhen:
This is a bug currently. Turn UI Blurring off in settings.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lividhen:
Quite a few people were on marshmallow before upgrading to fix the backlight issue.

The kernel being used is here and I think its forked from here. So, while it is still version 3 of the linux kernel i don't think its based off nougat.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lividhen:
I don't ever have sounds on so I didn't even realize that was an issue 😆. If there is no options in the buttons section of the crdroid settings you could probably have tasker (or similar) play a sound whenever the back button is pressed.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] ovalseven:
Fixed. Thanks!
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] batouttahell24:
I want to uninstall this ROM from my system and go back to stock recovery/firmware. I had fun with crDroid, but I think it's time to head back to stock.

Can I just flash a stock ROM with Odin to remove it? Or is there more to it than that?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] nubianprince:
Just

Use odin to install stock firmware.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] ovalseven:
Were you able to do this? I tried but I get stuck in a boot loop after flashing.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lividhen:
Flash the latest firmware in Odin, then boot into (the now stock) recovery and factory reset.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] batouttahell24:
Yes, I just flashed the stock firmware using Odin and it successfully reverted my Tab A back to stock 7.1.1.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Josephskertesz:
Love this ROM! I was wondering since this tablet is lacking in ram, if I increase the virtual ram (with my SD card) would it increase in speed or just help by being able to run more back ground process? Thanks
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lividhen:
Probably not speed, but it would let you keep more apps open at once. My tab with like 50 apps installed when idle has 300 megs free ram. The system, at least with smaller apps, has enough working room so increasing ram may not do anything at all. So unless you are trying to use a chonky Chinese app game you're probably fine 🤣. I say that mostly jokingly.

So, if you are having trouble using an app because it takes too much ram, or would like to have more apps open at once, you would want to use zram (compressed vdisk in ram) or paging (using the sdcard as ram).
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Josephskertesz:
Yes, I have a ton of apps that are ram hogs and when they all decide to start running in background at the same time. It seems to crash and shut down my tablet. I have to do the "force start" power/volume down for 20 seconds thing to get the tablet back up again. Thanks for the help!
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lividhen:
One other thing that may help, is long pressing on the app and going to its info page, then go to battery, and one of those options will stop it from running when you are not actively using it.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lmore377:
I know this is more a general android question than a rom specific question but is there any way to get the Ethernet settings like on the stock rom? I need to set a static IP but doing it thru a terminal with ifconfig doesn't seem to be working

edit: turns out that turning on ethernet tethering works for what I'm using the tablet for (bimmerlink for my car)
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Josephskertesz:
OK I will try that. Thank you
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] Josephskertesz:
It's kind of weird I couldn't find what was hogging up the RAM, so I did a factory reset and wiped everything but it kept randomly shutting down on me. I flashed a stock ROM and the same thing kept happening. So I flash this ROM back again because I love it compared to other ROMS. I have been using a wakelock app and it seems to stopped the issue. Could it be a chip set thing? One thing is for sure its not this ROM causing the issue.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lividhen:
Devices with low memory like this usually have their ram nearly full most of the time as the system tries to utalize as much of it as possible and can release some of it when allocating it to an app. Or at least that is my understanding of it.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] G_Bot:
The screen on my t-350 flickers when i pull down the quick settings tab on top. Dont know if it suppose to do that.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lividhen:
https://xdaforums.com/t/rom-sm-t350...oid-11-galaxy-tab-a-8-0.4293577/post-85453377

Please search for your issue before commenting. Somebody may have had the same issue in the past.

The issue in here refers to a dark screen, but it also flickers 😅.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] TravisGrady:
I have an sm-t350 with android 7.1.1

allright I have no idea how to use them .img TWRP files!!

the .tar twrp file in op "TWRP 3.5.2 SM-T350 ODIN DOWNLOAD" is not working for me. I flash it using Odin3_v3.14.1 but it just wont boot into it.

recovery mode just goes blank and not into twrp.

the only twrp version I could get to work was 3.1.1 and I got an "Error: 1" when trying to install the ROM zip file.

so I guess my question is what to do?

thanks.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] G_Bot:
You need to downgrade you're stock firmware to Marshmallow 6.0.1 And flash you're Rom's and Twrp on top of that. Im using Twrp 3.5.0_9 with Android 10 Cr.Droid.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] TravisGrady:
Huh !!

okey let me try that.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] TravisGrady:
OK.

so I flashed a marshmellow stock rom first but that itself was problematic on the first boot for some reason!! but I managed to put the device into download mode and then I flashded the "TWRP_3.5.0_9_SM-T350_Unofficial" and it booted into it successfuly!!

and flashed the Android10.0 zip file from twrp ( I know this is the android 11 thread but figured cauze this was an older build the bugs has beed ironed out) anyway the GPS not working and sound has problems, well native music app has problems more likly cause "Smart Audiobook" app plays the files just fine.

I'll try this with android 11 and see where it goes.

what I want the most is to be able to play music in ultra power saving mode so I can extened the battery life, I could do it in the stock rom using samsung music player only case any other app converted into system app ( so it could be run in Ultra Power Saving Mode) would lost its sound after screen lock.

but samsung music player gave off an awfully crap sound quality for some reason I could not figure out!!!
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lividhen:
Which version of the android 10 rom are you using?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] TravisGrady:
this one here: crDroidAndroid-10.0-20210428-gt58wifi-v6.17
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] TravisGrady:
Love this thank you.

ok after some trying I got this release to work with my SM-t350 but what the heck ?!!! the wifi MAC address is changed!!!

did it spoof it, but why?

I love it's light weightedness, I cannot find device maintainance feature present in 7.1.1 though.

It used to have a maximum power saving mode that would extend battery life for days. how is battery saver mode on this one?

any reviews on battery life?

oh and for those whose SSID is hidden you need to chose hidden or it won't connect.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] vsguru:
I just installed the latest Android 11 CR-Droid [20210919] Rom on my T-350 today. Cleared dalvic, cache, system and data. First installed the latest TWRP [3.5.2_9] Rebooted. Then flashed CR-Droid ROM as above. Rebooted. Flashed OpenGapps Nano for Android 11 rebooted. Flashed Magisk V21. Rebooted. Ran Magisk manager. Magisk then upgraded itself to v23. I rebooted a couple of times after that as I was seeing some odd things like Windows Explorer was seeing two copies of the SDcard in the explorer window for the device and scrolling the apps drawer from the bottom was producing some screen flickering in both directions. It seems to be smoother now. I do see some intermittent slowness when installing apps from the play store, but that seems to be only temporary and the device seems normal after a couple of minutes.

I'm still seeing brief flickering when opening/closing the app drawer. It isn't pretty but it doesn't seem to be doing any harm.

So far, other minor visual stuff, this ROM is flowing really very smoothly, like warm butter on a hot potato! Thanks SO much for dev'ing this nubianprince :)

@nubianprince I'm not thrilled with the permissive kernel decision and SELinux not active. Why was that done? Is there an easy way to change that? I'm not a developer and have never experimented in modifying a kernel and would prefer not to. Can you make a non permissive kernel for this that can be flashed?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] TravisGrady:
Turn UI Blurring off in settings.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lividhen:
Kernel is permissive because sepolicies are still being worked on. Currently if you run setenforce true everything bugs out super hard.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lividhen:
I think there is a mac address spoofing option in developer settings.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] vsguru:
Thanks for the explanation, makes total sense
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] TravisGrady:
there is mac randomizer but no this ain't it
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] TravisGrady:
is it me or anybody else have their GPS acting moody??

at first it was working but after battery saver mode it ain't. even after I get out of battery saver mode and restart the edvice!!
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] batouttahell24:
So when it says "full system backup", does that mean check everything in the "Backup" section in TWRP? Or am I only supposed to select certain things?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] ahoslc:
How did you fix this I am in the same boat?