yashsingh1/xdaforums huggingface dataset:
[Galaxy Tab S Android Development] gman900001:
Firmware was T800XXS1CSA1 (date Jan 2019) which was the latest I could find. I have also tried many other versions including versions known to work for others on the forum.

I believe there is only one hardware veriation for each model and it does not matter what region I use? There is an original sticker on the back of my tablet which says SM-T800 16GB so I am sure I have the right model. Plus stock and Android 6 ROMs run fine.

Yes by boot animation I mean the startup logo - the arch on Lineage, eye on crDroid, etc. They just animate forever and the system never comes up. I've never been stuck on the Samsung logo as stock ROMs run fine.
[Galaxy Tab S Android Development] hiimagoodguy:
i actually liked this rom at first but as time goes by this rom is so buggy and heavy

some root apps are not functioning in this rom (like cam restart) and also if u patch a game it doesn't work on this rom (worked on 14.1)

and the biggest problem is that even im playing just a light game its lagging a lot sometimes just turning off

and this was getting worse ever im using the rom longer

both android 7 and this rom have its own problem

in android 7 i can't install magisk module (i can do that on this rom)

in android 7 camera restarter is working (not in this rom)

and also the coolify its working fine on android 10 but not on android 7

so i can't easily change it cuz both contains big prob

another thing i forgot to say

i can't run supersell games if im using that rom

+for this ig im ok now
[Galaxy Tab S Android Development] XantheFIN:
All what is mentioned is mic and for me MHL adapter as video output is not there at all.

Otherwise went well and as mentioned in other places you need install Gapps in same boot as rom installation itself or wont work. If you get stuck for hours booting best then just go recovery and do factory reset as my Galaxy S5 gets boot stuck if trying boot with incompatible user data.
[Galaxy Tab S Android Development] hiimagoodguy:
ig u should work bit more in this rom for there are some minor bugs (can't edit name of music which are in SDcard as i found today) and as im using this rom longer i can really feel that this rom is getting slower (its better than before update but still super slow) and if u fix this ig this will really be the best rom for galaxy tab S
[Galaxy Tab S Android Development] puqui:
I love the ROM!!! brought my SM-T800 to life. The only thing that I detect that is not working well is the Battery Charge. It takes too long to charge !!.

Many thanks to everyone who makes the effort to keep the tablet up to date. I'm crossing fingers that it can also be updated to Android 11
[Galaxy Tab S Android Development] bobdylan1:
Does anyone know of a fix for this issue please, if 'fast roaming' is enabled on the Deco's then WIFI won't connect. Same for both 2.4ghz and 5ghz bands.

If I turn if off then my T-800 is able to connect.

It's also able to connect to a mobile hotspot without issue.

I'm running crDroid v6.27

Many thanks
[Galaxy Tab S Android Development] runekock:
From https://www.networkcomputing.com/wireless-infrastructure/wifi-fast-roaming-simplified

"One of the issues with 802.11r is that many older client devices don’t have drivers that support it, and in fact even have trouble properly detecting and associating to networks with 802.11r enabled. While adding new information elements to beacon frames is a scalable part of the 802.11 protocol since the early days of WiFi -- and is an essential element in backwards compatibility of new APs with older client devices -- many older client drivers cannot read and interpret the new FT information element in the beacon frames properly so they see the beacons as corrupted frames. Therefore, to ensure maximum client compatibility, the common recommendation is to disable fast roaming when using WPA2 Personal, and only use it for WPA2 Enterprise networks."
[Galaxy Tab S Android Development] Veram:
I upgraded from version 14.1 to version 17.1, but the tablet won't boot, the bootlogo keeps moving and nothing happens. What Can I do ?

Should I install the official software first?
[Galaxy Tab S Android Development] runekock:
You shouldn't need to install the official - provided you had the last official before going to 14.1.

Note that you do need to perform a full wipe.

Other than that, please describe as fully as possible what you did - maybe someone can spot a mistake, because 17.1 runs reasonably well for other people.
[Galaxy Tab S Android Development] Veram:
Can you explain exactly, how do I install, I completely delete everything and install, but the tablet hangs on boot
[Galaxy Tab S Android Development] CessnaBroon:
Install the official, that will reinstate the required vendor keys etc. Flash TWRP and boot in to it. Then flash the 17.1, Gapps, and magisk if desired, wipe cache and dalvik cache then reboot system. Hope this helps.
[Galaxy Tab S Android Development] runekock:
Wrong thread, but you probably need to reinstall Samsung's firmware
[Galaxy Tab S Android Development] gAgNiCk nThViM:
@8224Freak Thank you so much, this is awesome :)
[Galaxy Tab S Android Development] gAgNiCk nThViM:
Do you actually need to flash a full MM stock ROM or is just flashing the Marshmallow bootloader (T800XXU1CPK2.tar.md5) sufficient?

I've never had a MM stock ROM on my T800 but am using LOS 17.1 without any issues after just flashing the T800XXU1CPK2 bootloader.

Curious to know if I'm missing anything? Thanks.
[Galaxy Tab S Android Development] drei???:
Thank You very much!! Awesome ROM! Like already stated... second life indeed!

I'm very happy to have this tablet as a larger media screen.
[Galaxy Tab S Android Development] stewart30:
Just coming back custom firmwares and looking to breathe new life into this tablet, to install this rom do I need to root first?, if so can I be pointed in the right direction
[Galaxy Tab S Android Development] CessnaBroon:
No. Just follow the instructions in the OP.
[Galaxy Tab S Android Development] CessnaBroon:
Just flash the whole thing to be sure. It will save time later if there are any issues
[Galaxy Tab S Android Development] stewart30:
Ta much
[Galaxy Tab S Android Development] gAgNiCk nThViM:
That's my point, everything is working well with only the MM bootloader being flashed prior to LOS 17.1.
[Galaxy Tab S Android Development] mrkh995:
thanks for your great work.....just i want to know rom still have problem with mobile data ??
[Galaxy Tab S Android Development] mithrandir42:
Latest version is the one from february, so, yes.
[Galaxy Tab S Android Development] mickm666:
Is anyone having an issue when trying to instal apps from the playstore. All was working for the past week or so, but nowIhave started getting a "free up space " message when i try to instal anything but have no apps installed other than mini gapps...internal storage shows 4.34 gb used , of which 3.9 gb is system apps.

have tried wiping cache ,data , dalvik from TWRP console, did nothing, tried factory reset from twrp, did nothing, and lastly have reinstalled the rom and gapps, but still cant instal any apps from playstore
[Galaxy Tab S Android Development] gAgNiCk nThViM:
Out of curiosity I've tried to install the latest stock ROM, I tried two 'HOME' tars for UK and US (CRJ1, CRI5). Neither seemed to work, the tablet stuck on the SAMSUNG boot logo. Flashed using latest Odin , USB driver etc. Does anyone have any ideas or am I missing something? Many thanks I reverted back to LOS17.1 without any problem...
[Galaxy Tab S Android Development] chidiezenyem:
Please what steps (from scratch to full success) can I take to install this android 10 on my Samsung Galaxy Tab S 10.5 LTE SM-T805W that is currently running android Lollipop 5.0.2? I have not done this before so I need pretty much full guidance and I am willing to take the risk and full responsibility. Detailed guidance will be greatly appreciated. Thanks
[Galaxy Tab S Android Development] simonjonnemeth:
It's a shame we don't have Lineage 19.1 on these devices. That would be a new lease of life indeed if my old SIII is anything to go by. Huge improvement after moving from Android 10. Was so slow and laggy and overheating just using the UI. Not with Android 12.
[Galaxy Tab S Android Development] Vividian:
That would be great to have 12L
[Galaxy Tab S Android Development] Skyh:
User garak elim appears to have accomplished it, from this thread: where to begin to port to a newer Lineage Release? | Page 8 | XDA Forums (xda-developers.com)

Not sure how usable it is or isn't, or what it took to get it building & booting. The exynos5420 GitHub doesn't appear to have a lineage 19 branch, so it could be their own personal changes to the project.

Has anyone figured out anything for 17.1 with regards to GPU acceleration? I honestly switched back to the Deathly version of 14.1 because a few apps I wanted to use just flat-out wouldn't work (ESPN, MLB, Libby), and with the undervolting I can basically just run the tablet on full-speed all the time, which makes for a mostly acceptable experience using it. Funnily enough, even on 14.1 I noticed some bad graphical artifacting, such as when using a pure WebView browser, until I switched to the Google Play Store version of Android System WebView, rather than the AOSP WebView. Doing that on 17.1 does not fix said artifacting, though, so I have to assume it's again something to do with GPU acceleration.
[Galaxy Tab S Android Development] simonjonnemeth:
That specifically isn't Android 12L. It would need to be Lineage 19.1.
[Galaxy Tab S Android Development] dmitry1986:
Hi all! I have 2 sm-t800 and sm-t807t tablets, I flashed these tablets, everything worked, but on the t807 tablet, compared to the t800, the battery is quickly discharged (~ 3% vs ~ 22%) per night. This difference becomes even more noticeable when working with a tablet. What can so affect the discharge of the battery?

P.S. Batteries on the stock firmware held a charge quite well.
[Galaxy Tab S Android Development] Valenerus:
Hey.

just got this device primarily as a car GPS. Flashed Los 17.1 but I'm wondering which gives better battery life between Los 17, Los 14 and crdroid ?

Also is it actually worth it to lower the resolution ? Thanks
[Galaxy Tab S Android Development] dennyhhh:
Nikgapp is only released for arm64 as far as I can see.
[Galaxy Tab S Android Development] Athawulf:
All is perfect SM-T805, thanx @8224Freak...

Just a question, does this rom update OTA?

what's the difference between crdroid and lineage?

-----------------------------------------------------------------

if anyone is interested ... I used BiTGApps because the opengapps gave me an installation without google play services
[Galaxy Tab S Android Development] saoudien07:
It is amazing to see, peoples out there still caring and giving time to those devices after so many years.

Most peoples use Tabs for browsing and light tasks, even lately I see tabs, being more used as kids entertainment than anything. PS: if I am wrong or say something incorrect about you as a full active user on tabs, please do do get me wrong or get upset.

I got a TabS 10.5 (SM-T800), I use it mostly for browsing and movies, from time to time, not activily as before...

This Rom is great, stable and everything is good.

My main issue is with OTG support. On stock Rom, I am able to play movies or open any big files, directly from the USB flash drive. But on this Rom, system always ask to copy the file to its memory, before being able to play it. Idont know, maybe there is a module, or tweaks able to fix that.

thanx @8224Freak for the great work ;)
[Galaxy Tab S Android Development] gAgNiCk nThViM:
For anyone that is having issues flashing the latest MM stock in preparation for LOS 17.1, I had to use separate BL, AP and CSC tars with Odin, the old style CSC_HOME single file wouldn't boot.
[Galaxy Tab S Android Development] gAgNiCk nThViM:
As it turned out I ended up having an issue with Plex playback so I manged to flash the Mm Stock and clean installed LOS, working perfectly now, there's always an upside to following instructions lol :)
[Galaxy Tab S Android Development] raig001:
After installing it on my Samsung SM-T800 , MY CAMERA DOES NOT WORK ANYMORE.

Bad FIRMWARE.
[Galaxy Tab S Android Development] gAgNiCk nThViM:
Camera works fine for me, did you follow the upgrade instructions? The ROM is fine, I think you should review the installation protocol described in the first post.
[Galaxy Tab S Android Development] Tares_PL:
Anyone has this strange performance issue with Twitch app? Youtube works normally, but VODs and Lives on Twitch works like they had 1 fps. It's this way for more than 2 weeks now and I can't find a solution for it.
[Galaxy Tab S Android Development] Dexter1965:
Im also after the T800XXU1CPK2 bootloader where is the exact link please?
[Galaxy Tab S Android Development] gAgNiCk nThViM:
T800XXU1CPK2.tar.md5 | by DarkExistence for Galaxy Tab S 10.5

Download GApps, Roms, Kernels, Themes, Firmware, and more. Free file hosting for all Android developers.

androidfilehost.com

It's worth noting, I had to do a full stock install before installing LOS 17.1 to resolve a few few issues I noticed with video playback.
[Galaxy Tab S Android Development] porcino:
Could you please elaborate on these video playback issues?

I am also having issues when playing videos from various websites in Firefox or Brave. The scaling of the video changes together with the resolution of the stream. Sometimes it is correct, sometimes not. This does not happen when using an older LOS-14.1 ROM.
[Galaxy Tab S Android Development] :
Moving this post to separate thread.
[Galaxy Tab S Android Development] mp1967:
I installed magisk v23 via twrp (renamed apk to zip first),

rebooted, used magisk modules liboemcrypto disabler and magiskhide props config and rebooted, enabled magisk hide

installed netflix app via sideload and tick box in magisk to hide this app

went to netflix account to enable HD streaming for the device
[Galaxy Tab S Android Development] ruthless10001:
So i have done the same thing and netflix works but in sd also drm info shows L3 after that i found this L3 magisk patch i installed it and disable liboemcrypto disabler now drm info shows L1 and in netflix settings i can see it says hd but when i try to open a show it gives error 6.0??

Also what did you changed in magiskhide props?
[Galaxy Tab S Android Development] xthakila:
Okay so I played around with stuff a bit, the tablet is running smoother and snappier now. And much much cooler. Hope this helps everyone.

I am using smartpack kernel manager

Here are the settings I am using

1. CPU max frequency 1700 (1800 makes it run too hot, might go down to 1600 if 1700 still runs hot). Min 100hz (apply on boot)

2. Governor at interactive

3. Target loads at 75 600000:75 800000:85 1500000:90 1700000:95

4. Multi-core power saving enabled

5. CPU boost enabled

6. Kernal samepage off and disabled on boot

7. Low memory killer off and disabled on boot (Low memory killer has to be disabled on every device reboot from the app)

8. Z-ram 4096 and lz4 compression. Might try lzo later. (apply on boot)

9. Virtual memory turntable on

10. Entroy enabled on boot and read 256 and write 512

11. Battery enabled on boot and charging option on

12. IO scheduled disabled on boot

if anyone improves on these settings please update on this thread. We would all appreciate it.
[Galaxy Tab S Android Development] mp1967:
Hi, L1 lasted only a few hours. I also updated my old Galaxy S4 phone to JDC LOS17 and used the same config. Netflix is at least downloadable in the playstore but then plays only SD.
[Galaxy Tab S Android Development] xenokc:
Link to download smartpack? TIA
[Galaxy Tab S Android Development] xthakila:
It's on the playstore

Smartpack playstore link
[Galaxy Tab S Android Development] xthakila:
Could try this apk. It installs and runs but I can't tell if it is SD or HD lol

Netflix modified apk
[Galaxy Tab S Android Development] ISoreo:
LZO doesn't stick on boot or whatever I've tested it, Z-RAM 4 GB can you switch apps from background process? Something wrong in RAM management, it can't keep apps in SWAP (Z-RAM) also, it's always kill many background apps from heavy loads I can't figure out is it occur from LMK or not (from I've tested it by open 2-3 apps before LMK kill those app and bring me back to home screen)

No.1-5 is perfect settings, I have using it (you can disassemble back plate and applied some thermal paste to reduce cpu heat)

No. 6-9 I can't confirm the problem come from swappiness or LMK, We should wait until next patch release. If we can patch swappiness from default to 160 which mean we can more aggressive put all apps in SWAP and switch previous app easier
[Galaxy Tab S Android Development] xthakila:
So it's an old tablet. Yes I think there might be something wrong with the ram management but it's most likely that the tablet is just running out of memory and kills the apps. I think it should be okay with two apps maybe 3. I tested this with Spotify and 1 more app for 10 mins. The apps are not forced closed but the moment I opened the browser and XDA the apps were killed. I think that's the memory limit maybe.

1. Set the LMK in the kernel manager for all options to zero (least agressive LMK)

2. Set battery optimization as off for the app that you want to keep open open. This is in the android settings menu search optimization it will come up.
[Galaxy Tab S Android Development] toscha42:
First of all many thanks 8224Freak for bringing LineageOS 17.1 to Samsung Galaxy Tab S. I'm still using it on a daily basis, the past couple of years always running LineageOS 14.1.

However, these are some issues after a clean install, incl. factory reset.

All for Tab S 10.5 LTE (chagalllte) SM-T805:

- SIM card is not detected, no mobile network, neither voice nor data. It even doesn't ask for the SIM's PIN when booting.

- Fingerprint cannot be registered, during setup or later sensor doesn't react at all.

- After booting the PIN needs to be entered several times until finally it's recognised.

- Circular battery, kind of LineageOS 'trademark', is not available.

- Double tap to wake is not available.

Apart from this it's running perfectly fine!

Cheers

Toscha
[Galaxy Tab S Android Development] ISoreo:
I already do that things man but it doesn't help. Less or more aggressive LMK always end up by memory killer, 2-3 apps use SWAP but it's doesn't make sense that use SWAP a little bit (~110MB)
[Galaxy Tab S Android Development] maelstromm:
Checking this forum after a long time hoping 17.1 would come to the tab s. And I haven't been in the custom ROM flashing game for a while. Do I need to do anything special to flash TWRP like autoroot or kingroot? Or just install TWRP through adb?
[Galaxy Tab S Android Development] maxq1:
thanks for this. isn't 100hx min slow for you though? if i go as low as that, even on 14.1, i find my tab too sluggish especially after coming from idle. running 1700/400hz on my T700 now and i think that's the sweet spot for me. SOT is almost the same as with 14.1. gonna try other kernel settings you suggested/quoted. btw, i'm using fkm for kernel control
[Galaxy Tab S Android Development] xthakila:
You are most welcome. The reason I kept it to 100hz was to save battery at idle. If 1700 works for you that's awesome personally it got too hot for me. Let me know if changing anything helps the performance further :)
[Galaxy Tab S Android Development] xthakila:
Get odin and the usb drivers. I think I keep bricking my tablet lol so I always keep it on hand. The fenris page has the set of tools you need. Link to Fenris . Then just follow any odin guide to flash twrp.
[Galaxy Tab S Android Development] xthakila:
Did you try the CR droid version, maybe that fixes the issue. I will try flashing it in a few hours and let you know. I wonder where @8224Freak is?

Update : tried CRdroid same problem persists
[Galaxy Tab S Android Development] tony9527:
Thanks for providing LineageOS 17.1

This is my first time using LineageOS

In good condition

I am very happy to share the current usage status

My device is T805Y

Use accessories:

twrp-3.5.2_9-0-chagalllte.img.tar

lineage-17.1-20210505-UNOFFICIAL-chagalllte.zip

GApps (ARM/Android10/nano)

After ROOT, youtube can play in the background to save power

But I have some problems...

1. The camera freezes abnormally

2. Charging is slow in standby mode (only charging off can be faster

3. Is there any recommendation to modify to improve the performance of the phone?

Thank you all
[Galaxy Tab S Android Development] ISoreo:
Already tried it and the result is same as lineage man
[Galaxy Tab S Android Development] xthakila:
Yup I just tried it as well can confirm your finding. Need @8224Freak
[Galaxy Tab S Android Development] :
Slightly unrelated but have you tried newpipe app for youtube replacement? Just found it is all, as its the only place I occationally watch something, may help you in the meanwhile.
[Galaxy Tab S Android Development] m4themagic:
Frank (@8224Freak ), thank you for your post and lineageos 17.01 package. I would like to share with you my successful configuration. I have T800 (wifi),

1. Install TWRP Recovery (Flash with ODIN)

2. Perform Format using TWRP (without repartitioning) to remove everything.

3. Using TWRP flash (install) LineageOS 17.1 from Frank as quoted above. Perhaps you should reboot.

4. Using TWRP flash (install) Magisk. Perhaps you should reboot. Verify Magisk was installed. How to get magisk? Download apk file and rename into zip. Flash in TWRP as any other zip.

5. Using TWRP flash (install) Nanodroid (full package). This will install Nanodroid as Magisk module, including microg for gapps (the solution with opengapps didnt work for me but microg and nanodroid is seems much better). Perhaps you should reboot.

6. Using TWRP flash (install) Nanodroid-patcher. For some reason this didn't work with full package of Nanodroid alone and had to be specfically additionally downloaded separately. This will patch your system for Signature Spoofing needed by microg (google services emulator).

7. Go to MicroG settings and make sure everything is ok in Self-Check menu. Grant all needed permissions (by clicking on items).

Everything seems to work perfectly including camera, except USB file transfer for some reason (connection is not being detected). It's not a big issue as the tablet has MicroSD slot and also you can install an app the creates FTP server to transfer data within your wifi network easily.

EDIT: There was an issue with log files anihilating free space on internal storage. These logs were stored in /data/adb/logcats (iirc) just delete all logfiles in this directory. Then, to prevent new ones from being created, reboot into TWRP. Mount System partition in TWRP. Then, start File Manager in TWRP and rename /system/bin/logd into, for example, /system/bin/logd.bak . Restart. Problem solved. It should also improve performance. There is almost 10GB of free space on internal storage now.

This truly gave a second life to the tablet. Would be great to see the newest android on this device!
[Galaxy Tab S Android Development] ID000001:
Instead of all of these, I basically just wiped everything, flashed 17.1 with open gapps arm 10 pico and Magisk in one single flash. Reboot, And it works right away on first boot.

I run into the video laggy issue so I had to revert back to 7.1.2, which still runs perfectly stable for my use (mostly an extra Twitch screen) but after a couple of days of testing this build appears stable too, aside from video playback on twitch. I wasn't able to find a solution and changing resolution didn't help, so I reverted.

Keep up the good work, I will definitely keep tap on this thread. Totally can't believe an SM-T800 is still relevant in 2022. When I bought it back in 2016 2nd handed it was already considered "out of date", but looking back after 7+ years of solid usage the screen still looks great compared to many newer flagship devices, at least indoor!