[ROM][UNOFFICIAL][11] LineageOS 18.1 [T710][T715][T715Y][T810][T815][T815Y]

Search This thread

Johnybeas

New member
Feb 6, 2011
3
0
Bit of searching would have led you to the answer in this! thread.
Thanks with so many pages I ended up missing that I guess.

So I had followed the steps for "FULL WIPE (without external microsd card with Home PC access)" in order to do a "clean install" and wiped everything including the backup that was of the factory setup not even thinking, hey it's on the same partition. Now I can only load TWRP and the Samsung boot screen and it doesn't go further. (this was all before I posted in here) I had tried loading the Image from the 815 and It said it was invalid. So I unzipped the main folder and just loaded the zipped folder inside and it went but said it failed to update system E1001 error. I ended up getting an SD card to see if perhaps it was just not liking where it was loading from. Same issue. Then I checked here and saw your post.

@ripee or any of you have a rom that will work for the T817T or know where I can get the factory one back. I already wasn't using the tablet because nothing would update anymore and google play store kept crashing. If it's bricked it's bricked, but I was hoping someone might have some direction. I do see some other threads that have rom's but I'm not sure if there is something different I need to do to not make the situation worse.
 

Johnybeas

New member
Feb 6, 2011
3
0
To elaborate on installing SM-T815/Y: gts210ltexx on T817T:

Starting from stock Android 7.0

Backup all your data!

Enable OEM Unlock, if it isn't already
Boot to Download Mode
Use Odin3 to flash twrp-3.6.0_9-0-gts210ltexx.img.tar
Boot to Recovery Mode
Swipe to allow modifications

Make a full backup of all partitions using TWRP and copy it to your PC or somewhere off your tablet!

Wipe, Advanced Wipe, select Dalvik/ART Cache, System, Data, Internal Storage, Cache, then Swipe to Wipe
Back, Back, Format Data, type yes, click checkmark to continue.

Go Back, Back, Back, Mount, Only need to select Data, click Mount USB Storage
Connect to PC via USB
Copy lineage-18.1-20211209-UNOFFICIAL-gts210ltexx.zip to Internal Storage
Copy boot.img from lineage-18.1-20211209-UNOFFICIAL-gts210ltexx.zip to Internal Storage
Copy new.system.img to Internal Storage (to get this file, use system.new.dat.br Extractor Tool, url: https://www.droidwin.com/extract-system-new-dat-br-and-system-new-dat-files)
Copy Magisk-v23.0.zip to Internal Storage

Click Unmount in TWRP
Select to mount System

Back, Install, choose lineage-18.1-20211209-UNOFFICIAL-gts210ltexx.zip, Swipe to confirm Flash, it will fail
Go back, click Install Image, choose boot.img, select Boot, Swipe to confirm Flash

Go Back, Back, Back, Mount, select System to mount it again
Go Back, Advanced, Terminal, type the below commands:
rm -r /system/*
mkdir /tmp/sys
mount /sdcard/new.system.img /tmp/sys
cp -R /tmp/sys/* /system/

Go Back, Back, Install, choose Magisk-v23.0.zip, Swipe to confirm Flash
Reboot System
I see you did this with earlier versions of the files. Do you still have them?
 

lpedia

Senior Member
Sep 18, 2020
260
140
Samsung Galaxy Tab S2
HTC 10
... or know where I can get the factory one back. I already wasn't using the tablet because nothing would update anymore and google play store kept crashing. If it's bricked it's bricked, but I was hoping someone might have some direction. I do see some other threads that have rom's but I'm not sure if there is something different I need to do to not make the situation worse.
Stock Samsung firmware for all devices is available from https://www.sammobile.com/firmwares/. You'll need to use Odin to flash it to the device, because TWRP doesn't handle restoring from stock firmware packages.
 
  • Like
Reactions: Johnybeas
Feb 24, 2016
11
0
image17.png


LineageOS is a free, community built, aftermarket firmware distribution of Android, which is designed to increase performance and reliability over stock Android for your device. All the source code for LineageOS is available in the LineageOS Github repo. If you would like to contribute to LineageOS, please visit our Gerrit Code Review.

Code:
* [B][U]Your warranty is now void.[/U][/B]
I am not responsible for bricked devices, dead SD cards,
* thermonuclear war, or your getting fired because the alarm app failed. Please
* do some research if you have any concerns about features included in this ROM
* before flashing it! YOU are choosing to make these modifications, and if
* you point the finger at us for messing up your device, I will laugh at you.


FREQUENTLY ASKED QUESTIONS

(Please read them BEFORE posting anything in the thread!)
Q: Whenever I try flashing any lineage-18.1 build, I get the following error in TWRP: Updater process ended with ERROR: 7
A: This error appears whenever you try to flash an Q-based rom within a version of TWRP older than 3.5. Simply flash the linked below version 3.5 or higher, reboot back into recovery, and flash the rom zip again.

Q: Will any of the variants ever receive official builds from LineageOS?
A: In short, no. The reason is that, in order to get a modern version of Android working properly on an ageing device some legacy commits needed to have been re-introduced into the current source branch. These include a fix for something as fundamental as Wi-Fi.

Q: How often will new builds be released?
A: At least once per month: as soon as possible after each new Android security patch level is merged and whenever a new feature is added or a bug is fixed.


ROMs
- SM-T710: gts28wifi

- SM-T715/Y: gts28ltexx

- SM-T810: gts210wifi

- SM-T815/Y: gts210ltexx

Open GApps

Magisk




If your currently installed ROM is any version of either: stock Samsung TouchWiz, LineageOS, CyanogenMod, or any other custom ROM, you must perform a clean install of that LineageOS 18.1 variant, which corresponds to the model of your tablet!





How to flash LineageOS and Open GApps
FULL WIPE (with external microsd card)
1. Move any files you want to keep to your External MicroSD Card – ! Or you will lose them !
2. Download your LineageOS Rom and GApps Package,
3. Move your LineageOS Rom and GApps Package to the external MicroSD storage,
4. Boot into Recovery Mode,
5. Wipe > Advanced Wipe > Select On (enable tick) for Dalvik / Art Cache, System, Data, Internal Storage, Cache,
6. Swipe to Wipe at Bottom of Screen,
7. Back to Main start screen,
8. Wipe > Format Data,
9. Type 'Yes' and press blue checkmark at the bottom-right corner,
10. Go Back to Main Start Screen to Install Rom and GApps,
11. After you have finished installing the Rom and GApps > Wipe Cache/Dalvik > Swipe to Wipe,
12. Reboot System! Enjoy!


FULL WIPE (without external microsd card with NO Home PC access)
1. Move any files you want to keep to a safe folder - ! Or you will lose them !
2. Download your LineageOS Rom and GApps Package,
3. Move your LineageOS Rom and GApps Package to the internal storage,
4. Boot into Recovery Mode,
5. Wipe > Advanced Wipe > Select On (enable tick) for Dalvik / Art Cache, System, Data, Cache,
6. Swipe to Wipe at Bottom of Screen,
7. Back to Main start screen,
8. Wipe > Format Data,
9. Type 'Yes' and press blue checkmark at the bottom-right corner
10. Go Back to Main Start Screen to Install Rom and GApps,
11. After you have finished installing the Rom and GApps > Wipe Cache/Dalvik > Swipe to Wipe,
12. Reboot System! Enjoy!


FULL WIPE (without external microsd card with Home PC access)
1. Move any files you want to keep to your Home PC - ! Or you will lose them !
2. Download your LineageOS Rom and GApps Package,
3. Move your LineageOS Rom and GApps Package to the internal storage,
4. Boot into Recovery Mode,
5. Wipe > Advanced Wipe > Select On (enable tick) for Dalvik / Art Cache, System, Data, Cache,
6. Swipe to Wipe at Bottom of Screen,
7. Back to Main start screen,
8. Wipe > Format Data,
9. Type 'Yes' and press blue checkmark at the bottom-right corner,
10. Go Back to Main Start Screen to Install Rom and GApps,
11. After you have finished installing the Rom and GApps > Wipe Cache/Dalvik > Swipe to Wipe,
12. Reboot System! Enjoy!
13. Once first boot is completed you can safely move your files back onto your Internal Storage.


Typically if you do not do a Clean Install then you are not allowed to report errors or problems. If you Dirty Install and you do have problems then you will be asked to Wipe All and Clean Install and see if the problems still exist. This is a DAILY changing rom and any bug that you found was not working on the previous day's build may be fixed with todays daily build. On a side note, the code implemented to fix that bug could potentially break something that worked on that previous build. So reporting problems on a day old build that you dirty flashed over whichever build of whichever rom you had flashed previously will not be accepted as a true error.



Problems known to happen after a Dirty Installation
1. A muddled up mess of a system. You are taking a rom and installing a newer rom with changes over the top of your old rom. Between these two periods of time during which you used your tablet and created data, changed system options, and used apps. This is absolutely increasing the risk of causing problems somewhere in the system/data partitions. Some people have luck with Dirty Flashing. However, it's always hit-and-miss because of what we mentioned above about bug fixes breaking previously working functions. Dirty flashing doesn't only create problems if the source code of the system data and the system settings of the new build are significantly different from those of your previous build. That's not to say that Clean Installing won't ever create problems, but only bugs present on a Cleanly Installed rom are relevant for development purposes.

* Clean Install: Fully wiping everything and installing the rom onto a fully clean system/data partition of the tablet.

* Dirty Install: Installing the rom and GApps over top of the older rom to save time and not have to reinstall all the user apps and tweaking system and app settings that usually take a lot of time to set up as you like.


Bugs
- The microphone is able to record sound, but the sound is very faint. This is due to Samsung's proprietary drivers, as determined by Skulldron.
- T710 & T715/Y: Camera viewfinder is misaligned with the dimentions of the display, such that the shutter button is almost off the screen
- You tell us!

Changelog
All major features and bug fixes are discussed in detail by the developers in the thread, whenever they are implemented. All builds include the latest upstream Changes for all devices from LineageOS.

Credits
- bonuzzz, McFy, Skulldron, RaymanFX, CTXz, T_I, and every other open source developer and tester who contributes directly or indirectly to the LineageOS community in the development of and in providing feedback for the gts28ltexx, gts28wifi, gts210ltexx, and gts210wifi.

Sources
- LineageOS
- universal5433

XDA:DevDB Information

LineageOS 18.1, ROM for the Samsung Galaxy Tab S2

Contributors
ripee, ananjaser1211
ROM OS Version: Android 11
ROM Kernel: Linux 3.10.x

Version Information
Status:
Stable
Current Stable Version: 11
Stable Release Date: 2021-09-17

Created 2018-12-15
Last Updated 2020-12-29
Pl give support for T819Y also.
 

flunkyball

Senior Member
May 20, 2019
108
71
Other T815 With no ril. Its a great rom, very fast, but for my isnt work. ¿Where i can find the previus version, LOS 17.1 T815 with LTE working fine?
Thaks a lot for all your work
Since there are contradictory answers on this matter I wanted to ask again before trying out LOS 18.1.
Iam currently running LOS 17.1 in my T815 with LTE working nicely.
Does LTE work in T815 (old variant of S2) with this rom or not ? If not, why is it not mentioned in the "known issue" section ?

Thx for any help on that.
 
image17.png


LineageOS is a free, community built, aftermarket firmware distribution of Android, which is designed to increase performance and reliability over stock Android for your device. All the source code for LineageOS is available in the LineageOS Github repo. If you would like to contribute to LineageOS, please visit our Gerrit Code Review.

Code:
* [B][U]Your warranty is now void.[/U][/B]
I am not responsible for bricked devices, dead SD cards,
* thermonuclear war, or your getting fired because the alarm app failed. Please
* do some research if you have any concerns about features included in this ROM
* before flashing it! YOU are choosing to make these modifications, and if
* you point the finger at us for messing up your device, I will laugh at you.


FREQUENTLY ASKED QUESTIONS

(Please read them BEFORE posting anything in the thread!)
Q: Whenever I try flashing any lineage-18.1 build, I get the following error in TWRP: Updater process ended with ERROR: 7
A: This error appears whenever you try to flash an Q-based rom within a version of TWRP older than 3.5. Simply flash the linked below version 3.5 or higher, reboot back into recovery, and flash the rom zip again.

Q: Will any of the variants ever receive official builds from LineageOS?
A: In short, no. The reason is that, in order to get a modern version of Android working properly on an ageing device some legacy commits needed to have been re-introduced into the current source branch. These include a fix for something as fundamental as Wi-Fi.

Q: How often will new builds be released?
A: At least once per month: as soon as possible after each new Android security patch level is merged and whenever a new feature is added or a bug is fixed.


ROMs
- SM-T710: gts28wifi

- SM-T715/Y: gts28ltexx

- SM-T810: gts210wifi

- SM-T815/Y: gts210ltexx

Open GApps

Magisk




If your currently installed ROM is any version of either: stock Samsung TouchWiz, LineageOS, CyanogenMod, or any other custom ROM, you must perform a clean install of that LineageOS 18.1 variant, which corresponds to the model of your tablet!





How to flash LineageOS and Open GApps
FULL WIPE (with external microsd card)
1. Move any files you want to keep to your External MicroSD Card – ! Or you will lose them !
2. Download your LineageOS Rom and GApps Package,
3. Move your LineageOS Rom and GApps Package to the external MicroSD storage,
4. Boot into Recovery Mode,
5. Wipe > Advanced Wipe > Select On (enable tick) for Dalvik / Art Cache, System, Data, Internal Storage, Cache,
6. Swipe to Wipe at Bottom of Screen,
7. Back to Main start screen,
8. Wipe > Format Data,
9. Type 'Yes' and press blue checkmark at the bottom-right corner,
10. Go Back to Main Start Screen to Install Rom and GApps,
11. After you have finished installing the Rom and GApps > Wipe Cache/Dalvik > Swipe to Wipe,
12. Reboot System! Enjoy!


FULL WIPE (without external microsd card with NO Home PC access)
1. Move any files you want to keep to a safe folder - ! Or you will lose them !
2. Download your LineageOS Rom and GApps Package,
3. Move your LineageOS Rom and GApps Package to the internal storage,
4. Boot into Recovery Mode,
5. Wipe > Advanced Wipe > Select On (enable tick) for Dalvik / Art Cache, System, Data, Cache,
6. Swipe to Wipe at Bottom of Screen,
7. Back to Main start screen,
8. Wipe > Format Data,
9. Type 'Yes' and press blue checkmark at the bottom-right corner
10. Go Back to Main Start Screen to Install Rom and GApps,
11. After you have finished installing the Rom and GApps > Wipe Cache/Dalvik > Swipe to Wipe,
12. Reboot System! Enjoy!


FULL WIPE (without external microsd card with Home PC access)
1. Move any files you want to keep to your Home PC - ! Or you will lose them !
2. Download your LineageOS Rom and GApps Package,
3. Move your LineageOS Rom and GApps Package to the internal storage,
4. Boot into Recovery Mode,
5. Wipe > Advanced Wipe > Select On (enable tick) for Dalvik / Art Cache, System, Data, Cache,
6. Swipe to Wipe at Bottom of Screen,
7. Back to Main start screen,
8. Wipe > Format Data,
9. Type 'Yes' and press blue checkmark at the bottom-right corner,
10. Go Back to Main Start Screen to Install Rom and GApps,
11. After you have finished installing the Rom and GApps > Wipe Cache/Dalvik > Swipe to Wipe,
12. Reboot System! Enjoy!
13. Once first boot is completed you can safely move your files back onto your Internal Storage.


Typically if you do not do a Clean Install then you are not allowed to report errors or problems. If you Dirty Install and you do have problems then you will be asked to Wipe All and Clean Install and see if the problems still exist. This is a DAILY changing rom and any bug that you found was not working on the previous day's build may be fixed with todays daily build. On a side note, the code implemented to fix that bug could potentially break something that worked on that previous build. So reporting problems on a day old build that you dirty flashed over whichever build of whichever rom you had flashed previously will not be accepted as a true error.



Problems known to happen after a Dirty Installation
1. A muddled up mess of a system. You are taking a rom and installing a newer rom with changes over the top of your old rom. Between these two periods of time during which you used your tablet and created data, changed system options, and used apps. This is absolutely increasing the risk of causing problems somewhere in the system/data partitions. Some people have luck with Dirty Flashing. However, it's always hit-and-miss because of what we mentioned above about bug fixes breaking previously working functions. Dirty flashing doesn't only create problems if the source code of the system data and the system settings of the new build are significantly different from those of your previous build. That's not to say that Clean Installing won't ever create problems, but only bugs present on a Cleanly Installed rom are relevant for development purposes.

* Clean Install: Fully wiping everything and installing the rom onto a fully clean system/data partition of the tablet.

* Dirty Install: Installing the rom and GApps over top of the older rom to save time and not have to reinstall all the user apps and tweaking system and app settings that usually take a lot of time to set up as you like.


Bugs
- The microphone is able to record sound, but the sound is very faint. This is due to Samsung's proprietary drivers, as determined by Skulldron.
- T710 & T715/Y: Camera viewfinder is misaligned with the dimentions of the display, such that the shutter button is almost off the screen
- You tell us!

Changelog
All major features and bug fixes are discussed in detail by the developers in the thread, whenever they are implemented. All builds include the latest upstream Changes for all devices from LineageOS.

Credits
- bonuzzz, McFy, Skulldron, RaymanFX, CTXz, T_I, and every other open source developer and tester who contributes directly or indirectly to the LineageOS community in the development of and in providing feedback for the gts28ltexx, gts28wifi, gts210ltexx, and gts210wifi.

Sources
- LineageOS
- universal5433

XDA:DevDB Information

LineageOS 18.1, ROM for the Samsung Galaxy Tab S2

Contributors
ripee, ananjaser1211
ROM OS Version: Android 11
ROM Kernel: Linux 3.10.x

Version Information
Status:
Stable
Current Stable Version: 11
Stable Release Date: 2021-09-17

Created 2018-12-15
Last Updated 2020-12-29
I am having trouble with this, perhaps because some assumptions are made that I am missing. There are over 120 pages of postings in this thread, so I may have missed what I'm looking for.
I have a Tab S2 model SM-710 with the stock Samsung Android 7.0, latest security update was 2018-04-01.

I downloaded "lineage-18.1-20211103-UNOFFICIAL-gts28wifi.zip" from supplied link, got "opengapps-arm64-11.0-aroma-20220503.zip" from SourceForge, and grabbed "Magisk-v25.2.apk" from the GITHub repository.

I am using the "FULL WIPE (with external microsd card)" option.

I backed up all my apps to the SD card, then copied the downloaded files to the root of the SD card, booted into recovery mode, and saw the following:

Code:
Android Recovery
samsung/gts28wifixx/gts28wifi
7.0/NRD90M/T710XXU2DRG2
user/release-keys
Use volume up/down and power.
Reboot system now
Reboot to bootloader
Apply update from ADB
Apply update from SD card
Wipe data/factory reset
Wipe cahce partition
Mount /system
View recovery logs
Run graphics test
Power off
  • The menu and recovery UI does not match what is in the instructions
  • "Wipe data/factory reset" seems to wipe everything and reformat the data partition
  • "Wipe cache partition" clears only the cache partiton
I did the factory reset and explicitly wiped the cache partition, then I attempted to install the ROM from the SD card. This failed:
Code:
No Support SINGLE-SKU
Supported API: 3

# MANUAL MODE v1.0.0#
-- Appling Multi-CSC...
Applied the CSC-code : XAR
Successfully applied multi-CSC

Successfully verify for dmverity hash tree

-- Wiping cache...
Cache wipe complete.
-- Start Factory Reset...

-- Wiping data...
Formatting /data...
Formatting /cache...
-- Set Factory Reset done...
Data wipe complete.

-- Install /sdcard/lineage-18.1-2021103-UNOFFICIAL-gts28wifi.zip ...
Finding update package...
Opening update package...
Verifying update package...
E:failed to verify whole-file signature
Update package verification took 30.0 s (result 1).
E:signature verification failed
Finding update package...
Opening update package...
Verifying update package...
E:failed to verify whole-file signature
Update package verification took 31.4 s (result 1).
E:signature verification failed

Successfully verify for dmvverity hash tree
Installation aborted.#1

So a few questions come to mind:
  1. Is there an assumption that I've replaced the recovery image prior to starting this process? The original post recommends having the latest firmware before starting, and as far as I can tell, I do.
  2. If the answer to question #1 is "Yes", what recovery should I install, and how do I get it (a URL to a thread for that would be appreciated)?
  3. Where does the "Magisk" application come into this? It is linked, but I didn't see anything in the post that references it.
  4. Is there anything else that I'm missing?
I dropped into the "Tab S2 Universe" Telegram and posted some questions, but have not gotten any reply, and I may have been kicked by the the "shieldy_bot" because I didn't do something it expects me to do -- the channel now says "1 member" and it disappeared from my active channels list. (Edit: It appears that I've been banned, not just dropped, from the group, as I now get a message telling me the group is not available to me when I try to join it again.)

I would appreciate any help I can get on this. I don't mind the device going back to "factory", as it is not a main-driver for me these days, but I would like it to be made useful, and Android 7 is no longer supported.

Thanks.
 
Last edited:
...
  1. Is there an assumption that I've replaced the recovery image prior to starting this process?
This is mandatory as no stock recovery will flash a custom ROM.
2. If the answer to question #1 is "Yes", what recovery should I install, and how do I get it (a URL to a thread for that would be appreciated)?
3. Where does the "Magisk" application come into this? It is linked, but I didn't see anything in the post that references it.
Magisk is only necessary if you want to have root (admin) privileges.
The ROM will work without root.
4. Is there anything else that I'm missing?
I would recommend to use the pico version of OpenGapps to easier identify problems with Google stuff when installing the in pico not included apps afterwards from playstore.
AND i think that the ROM from @retiredtab has much newer patches included.
 
  • Like
Reactions: filker0

lpedia

Senior Member
Sep 18, 2020
260
140
Samsung Galaxy Tab S2
HTC 10
...
AND i think that the ROM from @retiredtab has much newer patches included.

@filker0 - looking at post#1 in this current thread, I can see that it was assumed a new user would be coming from a different LineageOS (or other custom Android) and would already have TWRP recovery installed.

So you will first need to install TWRP. Use the TWRP version that retiredtab recommends in his T710 thread (the link that @bmwdroid has given above). Once you have TWRP installed, the rest of the installation instructions given in this thread should work.

@bmwdroid - as of late yesterday, the T710 build is up to date with the July 2022 patches. 🙂
 
  • Like
Reactions: filker0

Sir Thopas

Member
Jul 7, 2022
5
1
Samsung Galaxy Tab S2
Since there are contradictory answers on this matter I wanted to ask again before trying out LOS 18.1.
Iam currently running LOS 17.1 in my T815 with LTE working nicely.
Does LTE work in T815 (old variant of S2) with this rom or not ? If not, why is it not mentioned in the "known issue" section ?

Thx for any help on that.
Currently not working. (Maybe one day it'll be fixed.) So stick with LOS 17.1 if you need LTE right now
 

Top Liked Posts

  • There are no posts matching your filters.
  • 1
    ...
    1. Is there an assumption that I've replaced the recovery image prior to starting this process?
    This is mandatory as no stock recovery will flash a custom ROM.
    2. If the answer to question #1 is "Yes", what recovery should I install, and how do I get it (a URL to a thread for that would be appreciated)?
    3. Where does the "Magisk" application come into this? It is linked, but I didn't see anything in the post that references it.
    Magisk is only necessary if you want to have root (admin) privileges.
    The ROM will work without root.
    4. Is there anything else that I'm missing?
    I would recommend to use the pico version of OpenGapps to easier identify problems with Google stuff when installing the in pico not included apps afterwards from playstore.
    AND i think that the ROM from @retiredtab has much newer patches included.
    1
    ...
    AND i think that the ROM from @retiredtab has much newer patches included.

    @filker0 - looking at post#1 in this current thread, I can see that it was assumed a new user would be coming from a different LineageOS (or other custom Android) and would already have TWRP recovery installed.

    So you will first need to install TWRP. Use the TWRP version that retiredtab recommends in his T710 thread (the link that @bmwdroid has given above). Once you have TWRP installed, the rest of the installation instructions given in this thread should work.

    @bmwdroid - as of late yesterday, the T710 build is up to date with the July 2022 patches. 🙂
  • 88
    image17.png


    LineageOS is a free, community built, aftermarket firmware distribution of Android, which is designed to increase performance and reliability over stock Android for your device. All the source code for LineageOS is available in the LineageOS Github repo. If you would like to contribute to LineageOS, please visit our Gerrit Code Review.

    Code:
    * [B][U]Your warranty is now void.[/U][/B]
    I am not responsible for bricked devices, dead SD cards,
    * thermonuclear war, or your getting fired because the alarm app failed. Please
    * do some research if you have any concerns about features included in this ROM
    * before flashing it! YOU are choosing to make these modifications, and if
    * you point the finger at us for messing up your device, I will laugh at you.


    FREQUENTLY ASKED QUESTIONS

    (Please read them BEFORE posting anything in the thread!)
    Q: Whenever I try flashing any lineage-18.1 build, I get the following error in TWRP: Updater process ended with ERROR: 7
    A: This error appears whenever you try to flash an Q-based rom within a version of TWRP older than 3.5. Simply flash the linked below version 3.5 or higher, reboot back into recovery, and flash the rom zip again.

    Q: Will any of the variants ever receive official builds from LineageOS?
    A: In short, no. The reason is that, in order to get a modern version of Android working properly on an ageing device some legacy commits needed to have been re-introduced into the current source branch. These include a fix for something as fundamental as Wi-Fi.

    Q: How often will new builds be released?
    A: At least once per month: as soon as possible after each new Android security patch level is merged and whenever a new feature is added or a bug is fixed.


    ROMs
    - SM-T710: gts28wifi

    - SM-T715/Y: gts28ltexx

    - SM-T810: gts210wifi

    - SM-T815/Y: gts210ltexx

    Open GApps

    Magisk




    If your currently installed ROM is any version of either: stock Samsung TouchWiz, LineageOS, CyanogenMod, or any other custom ROM, you must perform a clean install of that LineageOS 18.1 variant, which corresponds to the model of your tablet!





    How to flash LineageOS and Open GApps
    FULL WIPE (with external microsd card)
    1. Move any files you want to keep to your External MicroSD Card – ! Or you will lose them !
    2. Download your LineageOS Rom and GApps Package,
    3. Move your LineageOS Rom and GApps Package to the external MicroSD storage,
    4. Boot into Recovery Mode,
    5. Wipe > Advanced Wipe > Select On (enable tick) for Dalvik / Art Cache, System, Data, Internal Storage, Cache,
    6. Swipe to Wipe at Bottom of Screen,
    7. Back to Main start screen,
    8. Wipe > Format Data,
    9. Type 'Yes' and press blue checkmark at the bottom-right corner,
    10. Go Back to Main Start Screen to Install Rom and GApps,
    11. After you have finished installing the Rom and GApps > Wipe Cache/Dalvik > Swipe to Wipe,
    12. Reboot System! Enjoy!


    FULL WIPE (without external microsd card with NO Home PC access)
    1. Move any files you want to keep to a safe folder - ! Or you will lose them !
    2. Download your LineageOS Rom and GApps Package,
    3. Move your LineageOS Rom and GApps Package to the internal storage,
    4. Boot into Recovery Mode,
    5. Wipe > Advanced Wipe > Select On (enable tick) for Dalvik / Art Cache, System, Data, Cache,
    6. Swipe to Wipe at Bottom of Screen,
    7. Back to Main start screen,
    8. Wipe > Format Data,
    9. Type 'Yes' and press blue checkmark at the bottom-right corner
    10. Go Back to Main Start Screen to Install Rom and GApps,
    11. After you have finished installing the Rom and GApps > Wipe Cache/Dalvik > Swipe to Wipe,
    12. Reboot System! Enjoy!


    FULL WIPE (without external microsd card with Home PC access)
    1. Move any files you want to keep to your Home PC - ! Or you will lose them !
    2. Download your LineageOS Rom and GApps Package,
    3. Move your LineageOS Rom and GApps Package to the internal storage,
    4. Boot into Recovery Mode,
    5. Wipe > Advanced Wipe > Select On (enable tick) for Dalvik / Art Cache, System, Data, Cache,
    6. Swipe to Wipe at Bottom of Screen,
    7. Back to Main start screen,
    8. Wipe > Format Data,
    9. Type 'Yes' and press blue checkmark at the bottom-right corner,
    10. Go Back to Main Start Screen to Install Rom and GApps,
    11. After you have finished installing the Rom and GApps > Wipe Cache/Dalvik > Swipe to Wipe,
    12. Reboot System! Enjoy!
    13. Once first boot is completed you can safely move your files back onto your Internal Storage.


    Typically if you do not do a Clean Install then you are not allowed to report errors or problems. If you Dirty Install and you do have problems then you will be asked to Wipe All and Clean Install and see if the problems still exist. This is a DAILY changing rom and any bug that you found was not working on the previous day's build may be fixed with todays daily build. On a side note, the code implemented to fix that bug could potentially break something that worked on that previous build. So reporting problems on a day old build that you dirty flashed over whichever build of whichever rom you had flashed previously will not be accepted as a true error.



    Problems known to happen after a Dirty Installation
    1. A muddled up mess of a system. You are taking a rom and installing a newer rom with changes over the top of your old rom. Between these two periods of time during which you used your tablet and created data, changed system options, and used apps. This is absolutely increasing the risk of causing problems somewhere in the system/data partitions. Some people have luck with Dirty Flashing. However, it's always hit-and-miss because of what we mentioned above about bug fixes breaking previously working functions. Dirty flashing doesn't only create problems if the source code of the system data and the system settings of the new build are significantly different from those of your previous build. That's not to say that Clean Installing won't ever create problems, but only bugs present on a Cleanly Installed rom are relevant for development purposes.

    * Clean Install: Fully wiping everything and installing the rom onto a fully clean system/data partition of the tablet.

    * Dirty Install: Installing the rom and GApps over top of the older rom to save time and not have to reinstall all the user apps and tweaking system and app settings that usually take a lot of time to set up as you like.


    Bugs
    - The microphone is able to record sound, but the sound is very faint. This is due to Samsung's proprietary drivers, as determined by Skulldron.
    - T710 & T715/Y: Camera viewfinder is misaligned with the dimentions of the display, such that the shutter button is almost off the screen
    - You tell us!

    Changelog
    All major features and bug fixes are discussed in detail by the developers in the thread, whenever they are implemented. All builds include the latest upstream Changes for all devices from LineageOS.

    Credits
    - bonuzzz, McFy, Skulldron, RaymanFX, CTXz, T_I, and every other open source developer and tester who contributes directly or indirectly to the LineageOS community in the development of and in providing feedback for the gts28ltexx, gts28wifi, gts210ltexx, and gts210wifi.

    Sources
    - LineageOS
    - universal5433

    XDA:DevDB Information

    LineageOS 18.1, ROM for the Samsung Galaxy Tab S2

    Contributors
    ripee, ananjaser1211
    ROM OS Version: Android 11
    ROM Kernel: Linux 3.10.x

    Version Information
    Status:
    Stable
    Current Stable Version: 11
    Stable Release Date: 2021-09-17

    Created 2018-12-15
    Last Updated 2020-12-29
    21
    Changelog

    Build 0813 for all variants
    * August security patch level.
    * Synced with LineageOS sources.

    Please don't ask about deep sleep.
    21
    Changelog

    Build 0418 for all variants
    * April security patch level.
    * Synced with LineageOS sources.
    20
    Changelog

    Build 1101 for all variants
    * Synced with LineageOS sources.
    19
    Changelog

    Build 0924 for all variants
    * Update to the latest version of the Lineage audio hardware HAL
    * Fix memory issues (with improved LowMemoryKiller and swap)
    * Fix random shutdowns due to low memory after long useage
    * Set the minimum GPU frequency to 160
    * Set the GPU to be always online (due to lack of HWC, this fixes performance issues)
    * Massive improvements to LiveDisplay (ColorProfile, DisplayMode (night/day), Color temperature, Outdoor mode and Color Calibration support)
    * Fix Samsung vnswap
    * Add missing uvented permissions in ramdisk
    * Add custom power.rc
    * Other performance improvements

    The above are courtesy of @ananjaser1211

    * Synced with LineageOS sources.