yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] bluenote73:
I actually just popped into the thread to say thank you because I recently solved the performance problems that were plaguing me and now the rom is just a dream to run and I'm excited to try the next build, so a nice surprise!
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] rainking430:
What problems were you having and how do you solve them? For me this OS locks up after about a half hour and all my apps crash and have to close.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] RX1337:
Heyya.

Im new(as in I never tried it) to flashing custom roms. I'm curious does this Custom Rom also work for the Cellular Version of the Tab A 8? I suppose not but I'd be happy to get help in this regard. Thanks in advance
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lividhen99:
Get a copy of version galaxy tab a boot image, flash the ROM, then berlfore rebooting, flash your tablets boot image. You wont have data though. ?

---------- Post added at 07:11 AM ---------- Previous post was at 06:49 AM ----------

So! I know at least one other person has been having this issue, but sometimes the system will slow to a crawl. BUT! I have been using gnirehtet for about a week and a half with NO ISSUES whatsoever. Could the problem be the wifi it's self? Am I just rambling on here with no actual basis? Is it even possible that the wifi module being turned on or the system possessing it weird could slow down the device? Or, is it coming out of deep sleep that messes with is? Is the USB activity from gnirehtet keeping it out of deep sleep?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] djScrewhead:
I've been having an issue getting all of this to work, and I've finally hit a brick wall.. hoping someone can help me, as I've read through the whole thread, but seem to have messed something up trying things before getting to the last page.

I've had the TWRP "black screen" issue trying to flash 3.3.1, which would still load the internal and microsd into Windows as external drives, and still let me throw it some ADB commands to reboot the tablet, as holding the power button for over 2 minutes doesn't seem to work when the black screen is up.

So I figured maybe an older version would work and tried flashing the 3.2.3 in the instructions, and now I still get the black screen, but ADB gives me an "Unauthorized Device" error and doesn't let me send any commands to the tablet.

So, I can no longer reboot, get into fastboot, Android, etc.. which means I can't try flashing to MM to see if that fixes my issue. Essentially, my SM-T350 just became an external USB storage.

Any ideas? Holding the power button does nothing, throwing ADB commands does nothing.. Is my only option at this point to let the battery die so I can reboot the stupid thing?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] nubianprince:
[MENTION=4774754]djScrewhead[/MENTION] try this and see if you get into download mode

Home + volume down + power (for about 9-10 seconds) release power and keep holding home + volume down
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] djScrewhead:
Oh thank you, that worked! I didn't think of trying the other options since holding Power didn't do anything for me!
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] widelife25:
:D
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] bluenote73:
I think the final thing was somehow I had a virtual disk configd in smart kernel config, removing that seemed to have fixed most of my issues. Ihad also at some point turned on *no background tasks* to try and fix what seemed like memory problems. Then I added some zram, and now I'm good.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] niteNarmor:
Thank your hard work. Been rooting for many years and am versed in the multiple methods of rooting. From HTC to Samsung. So far your ROM is working great.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] rainking430:
I have been using this ROM for many reasons that I like, one of which that it retains the ability to encrypt the tablet. I decided to try another ROM but noticed that it included a feature that purposely disables encryption. Now when I go back to using this crDroid ROM, I noticed encryption no longer works (go to enable it in settings, the tab asks for my pin, then reboots and nothing changed). I also reinstalled the original stock ROM and it too won't encrypt. Is there a way to get encryption working again?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lividhen99:
Maby this is a long shot, but try flashing the marshmallow firmware mentioned for getting rid of black screens.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] nubianprince:
Have you tried wipe -> format data then install the ROM?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] rainking430:
Yes, and still no encryption. It's ok though, I decided to move on from this tablet. Thanks for the help anyway.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] nubianprince:
crDroid 5.11 build 20200125 uploaded with 2020-01-05 security patches, I also decided to just build the OC version.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lividhen99:
So, is there an environment variable I can set to make it build with the overclocked boot image? Or do I have to change the roomservice.xml
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] nubianprince:
You need to build with an OC kernel
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] bluenote73:
I always have Android setup running in my task list. Is this normal? I'm thinking if it isn't I need to not restore my config...
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] kirochero:
i flashed this rom to my sm t350, followed all instruction and my device got black screen, what should i do?please help...
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lividhen99:
https://xdaforums.com/galaxy-tab-a/development/rom-galaxy-tab-8-0-t3912517/post80961465

Fix for black screen.

https://drive.google.com/open?id=1gjoodMD09sAZJIWM8fVKrBT3cwmqTTSP

Here is a Google drive link for the marshmallow firmware, because sammobile is slow.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] bluenote73:
Hey NP I'm seeing some signs maybe there's a system memory leak in latest version? I thought it was me, so I formatted, but it seems to be recurring. Not definitive, but just wondering if anyone else seen this?

Edit: ok, it doesn't seem to be a leak but system ram usage hovers 600-700 mb which seems very high!!
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lividhen99:
Me. My memory will slowly fill up over time, initially I was like, hmm... Do I have a rouge app? And who knows I might actually but a system memory leak would be a good explanation.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] bluenote73:
I was messing around with zram/zswap settings until I realized it doesn't seem to be enabled. I use this to good effect on my raspberry pi though. [MENTION=6865385]nubianprince[/MENTION] any chance you'd consider looking at importing the functionality? It might be a pain though. Any method of freeing up some ram would be welcome.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lividhen99:
So, it looks like it has a mount point for it (that's what that is, right?) so would it work if you were to use something like kernel auditor to enable it?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] bluenote73:
Weird. I did try using a couple kernel apps to enable it with no effect that I could see. I'd really like to get it to work because afaict the ram is really holding back performance for me.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lividhen99:
Would enabling this work? Line 155 of build.prop
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] bluenote73:
Haha, I don't know but I'm gonna try it! Thanks
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lividhen99:
Hey, I have a question about the startup time. Why does the crdroid rom take so much longer to boot than the lineage os rom? It's not really important at all, just curious. Is it just crdroid's plethora of features having to startup?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lividhen99:
Hey, any clue if this ended up working?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] CMDRZOD:
I'm trying to install the DJI Fly drone app to this tablet, I see it has an armv8 capable A53 cortex processor. This app requires armv8 and 64 bit android OS. However it seems this build of Android is 32 bit. Is there any way to get a 64 bit OS for this tablet?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lividhen99:
I checked the thermal section of cpu-z and pa_therm0 is running at 177.8f°! Is this normal?!

---------- Post added at 07:27 PM ---------- Previous post was at 07:13 PM ----------

[/COLOR]

I don't think there was an armv8 kernel made for the prosesor. it is an armv7 kernel, but Wikipedia does say it was made for armv8, although it has armv7 backwards compatability.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] bluenote73:
I've come to the conclusion that I don't know how to tell reliably and also I see different indications going both ways so I dunno :/
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lividhen99:
Since nubianprince hasn't been uploading builds, i thought id upload a couple, with updated security patches. Both of these builds have the overclocked boot. I am not 100% sure if i am allowed to do this, so if i am asked to remove the builds i will.

March security patch:

https://drive.google.com/open?id=1CoJ9b689AisR6Ngycl1Da5X8jOsVEQYO

February security patch(as i am not completely sure how the march one will affect saftynet in the future):

https://drive.google.com/open?id=1XqH3cvqqkussyFPmP1u-4l9PQyyA6Bst

All credit goes to Nubianprince, Google, the CrDroid team, and anyone else who worked on it. None of this is mine, i just built the source code. Another reason to not blame me if it breaks ?.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] bluenote73:
Hey thanks lh, nice of you.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lividhen99:
Your welcome! IL try to build whenever the crdroid team merges the monthly security patch.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] alias4ever:
Yes, I second the thanks...so THANK YOU for building these! It is truly great of you! :good: Curious about something though, how is the battery life on this? I haven't tried it quite yet but I would love to. Just want to know how the battery life is on your tablet please? Thanks again so much! ;)
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lividhen99:
in the overclocked builds, the battery, under normal use, is usually about the same, sometimes better, because the cpu is active less often because it gets done with tasks faster. While gaming or doing other cpu intensive tasks though, it is slightly worse, but it does help remove stuttering.

if you are just talking about the rom in general, close to stock, if not slightly better. So about 24-36 hours when not being used much, 8-12 when being used a lot.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] nubianprince:
Thanks to [MENTION=9248375]lividhen99[/MENTION] for posting an updated build, I have been pulled into a huge project at work and haven't been able to do anything ROM related. It's always good to know that we now have a now experienced ROM builder in lividhen99. :good:
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lividhen99:
April 2020 patch + https://github.com/crdroidandroid/android_frameworks_base/pull/412

https://drive.google.com/open?id=12wnSo1Ld86ygE7Tt51r_mo5FFAS8kTf3
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lividhen99:
Also, here is a crdroid 6 boot animation, because I like it better than crdroid 5's ??.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lividhen99:
I also have a build that i have not tested yet where i think i disabled CRC in the kernel. Even though all of this is "use at your own risk", this is really, please use at your own risk! i dont know what the consequences can be of having it disabled. It is potentially very dangerous!

https://drive.google.com/file/d/14PWcJOMAkMhLrCi6SHyGj2R3aBO4L4XR/view?usp=sharing
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] bluenote73:
Hey, IIRC you were asking about the zram. You can check the status by (in terminal) cat /proc/swaps

I seemed to be in some situations where it should have been activated but wasn't, but I think that was down to how I was configuring smartpack kernel app.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] brmbjn:
Who have custom rom for sm-p355 ?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lividhen99:
Changelog: https://github.com/crdroidandroid/android_frameworks_base/pull/432

Download: https://www.androidfilehost.com/?fid=4349826312261809339

Also, should I start a new thread as to not flood this one with updates?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lividhen99:
there are no roms for the p355, but what you can do (no guarantee of working) is flash the p355 boot image after flashing the rom but before rebooting. I think you can also create a twrp backup of boot and restore it after flashing. Neither data nor the s-pen will work, i dont think.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] alcasas:
how lo unlock OEM in developer options?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lividhen99:
The sm-t350 doesn't have that, you can just flash things, there are no protections besides Knox which does not stop you from flashing.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] bluenote73:
I'm on last NP version (sorry LH, haven't installed your version yet but I plan to.. I just switched my phone to crdroid from stock) and sometimes (?) or all the time? my charging seems to go really slow. Is there a setting that I am missing?

thx
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] mariosaraylian:
That's a bit of an odd question since you are in a forum about a custom ROM for the device......
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] sintoo:
Hi all. Can I assume ROM on this thread for SM-T350 will work for SM-T350nzaaxar as well? Same model? Thank you.

Besides, Has anyone checked if working:

1) OTG (thumbdrive, usb mouse).

2) MHL (USB -> HDMI).

Thanks again.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lividhen99:
I am not sure if there is a difference between the models or not. USB otg works, although, I am using mixplorer's custom drivers, and I do not have the hardware to test mhl.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] SeanAndre03:
Anyone have stock partitions for efs, modem, and persist for SM-T350. I need it for some problem and investigation thanks.

Btw, I am fixing the sensors of my tablet If anyone has the knowledge about fixing it that would be great. Thank you, again.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] bluenote73:
I discovered a bug, not sure if it's my setup or not. When I use AOSP KB, and switch to numbers then try to go back to ABC it just flickers. I have to switch to emoji, then hit ABC to go back. I can't use gboard bc it's too laggy in high ram applications. Anyone else excperience this?

Also, after still being unhappy with responsiveness and memory mgmt, I turned off customizations I was trying with smartkernel and used this magisk module and I've been much happier. I recommend trying it!

https://github.com/crok/crokrammgmtfix
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lividhen99:
CrDroid 5.12 8/12/2020

Security patch:Augest 5th

Wipe dalvik cache for this one, or it may bootloop.

Everything works.

You can see the "changelog" by looking at the 9.0 branch in the android_frameworks_base repo on the crdroid GitHub.

This build seems to have better memory management.

https://www.androidfilehost.com/?fid=8889791610682913844
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] bluenote73:
Sweet, will be trying this shortly. Thanks! In case you see this soon, I wonder if you could just list the steps to apply this? Sorry, been a while.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] bluenote73:
Thanks LH, works great. I still find ram a problem so this is essential: https://github.com/Magisk-Modules-Grave/crokrammgmtfix please try it, you'll like it.

Also, I noticed aosp still won't switch back from number kb properly. I wonder if you can fix? Your efforts much appreciated, thank you.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] nubianprince:
Hey Guys, I am back at it, I know its been a while, Ive been really busy and Covid made my work load worse, I've build android 10 version of crDroid, I am going to make sure video & audio works then hopefully I can post something later today or tomorrow than you guys can take for a spin.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] vipulkohli:
[MENTION=9248375]lividhen99[/MENTION]

For T350 sound is broken on crdroid with android 10 build and battery drains a lot crdroid with android 9 builds, if possible can you suggest a custom ROM with good battery and audio
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lividhen99:
I haven't had any issues with battery drain on Android 9, and the android 10 roms are unfinished, I hadn't meant for anyone to use them yet. Are you sure you are using the latest Android 9 build? Lineage os might have slightly better battery, just because there is less in it.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] vipulkohli:
Yess I have used the latest build of android 9, but know I have installed the newer build of android 10 which you have posted today itself and it's working pretty fine also can we dirty flash newer builds and when can i expect a android 10 navigation geature in your builds
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lividhen99:
That's in the crdroid settings, there is an option to hide the line at the bottom and keep gestures as well. GPS is currently broken, but I am hoping to fix that today with some info retiredtab has helped find. And the home launcher is sort of funky. Dirty flash should be fine most of the time AFTER it has gotten to a more stable point in development, things may break as of now ?.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] vipulkohli:
Everytime I had to go back to stock and then install new rom, because if dirty flash tablet boots in recovery only not system

I'm missing any step that can reduce the amount of time I had to waste to install a new rom

---------- Post added at 04:55 PM ---------- Previous post was at 04:54 PM ----------

As you mentioned about the lineage rom is that stable then this one, can you tag that here if possible
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lividhen99:
Well, stock and crdroid are 2 different operating systems for all intents and purposes in this case. So it would be like trying to boot Linux with a windows C folder setup. You need to wipe system, data, and caches in twrp, then install the new os. It can only be dirty flashed when the os is already on there.

Here is lineage: https://xdaforums.com/galaxy-tab-a/development/rom-t3903258/

Migrate: https://xdaforums.com/android/apps-games/app-migrate-custom-rom-migration-tool-t3862763
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] retiredtab:
Even moving between 16.0 and 17.1, I find that you need to format the data partition, not just wipe.

There's no free lunch moving between stock and custom rom and trying to keep your existing data and apps. A clean install wiping everything is the best way to go.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] nubianprince:
I have a working android 10 version, will give it a test run in the morning, I didn't find anything major in the logs if I am ok with what I see, I will post it and fix bugs as they come up
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] vipulkohli:
When can we expect this build
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lividhen99:
Not sure at this point. Things are being a little funky and broken.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] nubianprince:
I will post something when I am satisfied that there are no major bugs.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] nubianprince:
Android 10 build is up https://xdaforums.com/galaxy-tab-a/development/rom-galaxy-tab-8-0-t4158163
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lividhen99:
Crdroid 5.12 (android pie) September.

Download: https://www.androidfilehost.com/?fid=8889791610682937950

Changelog: https://github.com/crdroidandroid/android_frameworks_base/commits/9.0

Build info: I have not tested this, because I am now using android 10, but it should be fine. I will probably keep building android 9 until December, for those that still need android 9.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] jeffyjeffy1023:
How would I upgrade from Pie to Q without losing (most) things? (e.g. having to wipe the relevant partitions then flash via TWRP)
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] lividhen99:
I think you have 3 options. OAndBackupX, migrate, and titanium backup. I think migrate is easier than titanium backup for migrating data. I have never used OAndBackupX, so you cam also look into that if you want.

You still have to wipe system and data, but you can restore your apps and some other data very quickly.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] big bad brad 31:
Worked very well, thanks very much!
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] emmabellic:
WORKs?

Works on P350? I have android 6.0.1
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] D1ab70:
Having an issue getting file transfer to work through usb no matter how many times I select it.Where can I get the latest android 9 variant? Out the gate it seems bit sluggish as well.

**edit, nvm got the link it was few posts above derp.. how frustrated I am
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] D1ab70:
having so much issues with these roms, version 10 variant file transfer via usb doesn't work on both variant 10.0 and 9.0 having issues installing apps from playstore (insufficient space) or when trying download magisk modules I get error tho the app itself is able download updates for itself which makes no sense.Also another app that having hard time downloading things but the internet is working fine and i can manually install things fine.Do i need flash stock first again even tho wifi works fine?
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] D1ab70:
Issue I am getting, freshly wiped and flashed just the rom and gapps pico (no root at all this time), this is right after 1st boot and initial setup.I can manually install apps and put stuff on device via usb and that it.Before reset when I had magisk or any app that needed to download stuff would fail in downloading.

So head scratching, gonna try testing using the original and older version on 1st page to see if that works (only bc it one I was using before and it worked then).Just trying get my mom tablet running right with updated rom with root so she can play her games.

Sorry for bad quality pics, had to use my crap phone to take them bc her tablet complained there no space to take a screenshot lmao.
[Samsung Galaxy Tab A series ROMs, Kernels, Recover] D1ab70:
ok last post, a follow up on testing using the original rom from 1st page here

As shown below I finally got things working again, everything downloads and installs and works correctly so I can safely say it was the new Roms that are defective.

The question is now what changes from then to now are the culprit.Untill that question is answered I am stuck using old rom with outdated security patches and software.