[ROM][UNOFFICIAL][11][EAS][SM-T820][SM-T825][2022-05-08] LineageOS 18.1 for Galaxy Tab S3

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Feb 24, 2016
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Nightmare started when I sent my tab to Samsung service center for cracked Screen replacement, the formatted it and reinstalled latest Android 9 stock OS (1.5 years back). Since then OEM unlocking option disappeared from Developer's option section.
@

bmwdroid

Samsung repaired damaged screen and re-flashed Android 9 stock ROM. Since then OEM unlocking disappeared.
Before each try I waited for more than 7 days.
One more observation- When I set ANY previous date and try to check system update for FIRST TIME, there is an error message appears as device failed to register on server.
Now again I will try your method and update here. Hope this will work.
 

imacleod

Member
May 24, 2014
11
2
Southend-on-Sea
I've got a weird issue with Skype, the local self-picture looks fine but the one sent to the other person has colour issues (some sections of the picture are in B&W; white balance?), The audio & video settings in the app are missing. Those settings are also missing in Skype on my S8 which is running Lineage 19, but the sent video looks OK there. Anyone else have this issue/suggestions?

I notice the 19.1 ROM for the t820 now lists the camera as working (I'd used it earlier but had to bail out as the camera was not working at that point); can anyone confirm whether Skype works properly on there?
 
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MachineMasher

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Sep 8, 2021
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imacleod

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May 24, 2014
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Ilja Repin

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Oct 11, 2020
10
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Thank you very much for the ROM Awesometic! Just flashed it and everything works great on T825 so far. I just have a quick question: "hardware encryption does not work", means that I should not try to encrypt the tablet, right? Will this feature be able to be added in the foreseeable future?
 
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Thank you very much for the ROM Awesometic! Just flashed it and everything works great on T825 so far. I just have a quick question: "hardware encryption does not work", means that I should not try to encrypt the tablet, right? Will this feature be able to be added in the foreseeable future?

Right, that means we couldn't use disk encryption on Android settings.
It supports general encryption options in the lock screen settings.

Currently I don't have a plan to support that feature since there are many things that should be done with priority to that. :)

By the way, I updated the encryption setup for this device tree recently, so if you have a backup of the current state you may try the disk encryption. If it doesn't work, probably it will fall into boot loop then, you can restore the backup.
 
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Ilja Repin

Member
Oct 11, 2020
10
1
It supports general encryption options in the lock screen settings.

By the way, I updated the encryption setup for this device tree recently, so if you have a backup of the current state you may try the disk encryption. If it doesn't work, probably it will fall into boot loop then, you can restore the backup.
Thanks for the quick reply! That's exactly what I wanted to know: I am not aware of the difference between hardware encryption and general encryption, but that doesn't matter. I obviously meant the general encryption, which I have now tried, but indeed it ends in the boot loop. Should I just try again until it works, or is there no chance?
 

Ilja Repin

Member
Oct 11, 2020
10
1
Oh no... sorry, I misunderstood again. Now I have it. I tried the disk encryption, it doesn't work as I said. But then what is the general encryption in the lock screen settings?
 

Vrtfrank01

Member
Oct 11, 2015
32
6
Anybody using this as a daily driver? Is it possible to run S notes with this ROM? Thanks in advance for answers.
 
Oh no... sorry, I misunderstood again. Now I have it. I tried the disk encryption, it doesn't work as I said. But then what is the general encryption in the lock screen settings?

I meant a lock screen method like fingerprint, pattern, and pin. :)

Anybody using this as a daily driver? Is it possible to run S notes with this ROM? Thanks in advance for answers.

S Note is a Samsung dedicated application. I don't know if it can run on non-Samsung devices.

S-Pen is working on third-party note applications but you couldn't use its full functionality as much as the Samsung devices do.
 

masdaster

Senior Member
Hi @Ilja Repin,
a few weeks ago I managed to fixed hardware encryption. Unfortunately I forgot to publish my changes after testing... So I have only my compiled version for now... 😅
It is based on the sources mentioned in the first post, my changes for device encryption and I disabled debugging by default (can be reenabled in settings).

Here is the link to my cloud: https://1drv.ms/u/s!AgBELbH5Ycnt0RKSPGXy2r0FXd_i?e=F4OVNL

Of course all credits go to @Awesometic who did a very good job with porting LineageOS!
 

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  • 2
    Oh no... sorry, I misunderstood again. Now I have it. I tried the disk encryption, it doesn't work as I said. But then what is the general encryption in the lock screen settings?

    I meant a lock screen method like fingerprint, pattern, and pin. :)

    Anybody using this as a daily driver? Is it possible to run S notes with this ROM? Thanks in advance for answers.

    S Note is a Samsung dedicated application. I don't know if it can run on non-Samsung devices.

    S-Pen is working on third-party note applications but you couldn't use its full functionality as much as the Samsung devices do.
    2
    Hi @Ilja Repin,
    a few weeks ago I managed to fixed hardware encryption. Unfortunately I forgot to publish my changes after testing... So I have only my compiled version for now... 😅
    It is based on the sources mentioned in the first post, my changes for device encryption and I disabled debugging by default (can be reenabled in settings).

    Here is the link to my cloud: https://1drv.ms/u/s!AgBELbH5Ycnt0RKSPGXy2r0FXd_i?e=F4OVNL

    Of course all credits go to @Awesometic who did a very good job with porting LineageOS!
    1
    I got your answer already. Thanks again! (It's Yes I suppose.)
    Yes. If you are on the latest build, you can dirty flash because the sources are nearly the same. 😉

    I hope you have the LTE version of our device? Otherwise this image would not work. I have not build it for the WIFI version up to now.
  • 41
    Code:
    /*
    * Your warranty will be VOID after installing a custom ROM.
    *
    * Get notified yourself that I am not responsible for bricked devices, dead SD cards,
    * thermonuclear war, or you 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 me for messing up your device,
    * I will laugh at you.
    */


    # LineageOS

    LineageOS is a free, community built, aftermarket firmware distribution of Android 11, which is designed to increase performance and reliability over stock Android for your device.

    LineageOS is based on the Android Open Source Project with extra contributions from many people within the Android community. It can be used without any need to have any Google application installed. Linked below is a package that has come from another Android project that restore the Google parts. LineageOS does still include various hardware-specific code, which is also slowly being open-sourced anyway.

    All the source code for LineageOS is available in the LineageOS Github repo. And if you would like to contribute to LineageOS, please visit out Gerrit Code Review. You can also view the Changelog for a full list of changes & features.


    # What's working
    • Display/Touchscreen
      • LiveDisplay
    • Audio playback
      • Quad speakers
      • Headphone/Headset
      • Bluetooth audio
    • Video playback
      • HDR
    • Camera
    • Microphone
    • Sensors
    • Fingerprint sensor
    • GPS
    • LTE (SM-T825)
    • WiFi
    • WiFi display
    • Hotspot
    • Bluetooth
    • DRM
      • Widevine L1
    • USB ADB/MTP/OTG
    • Samsung Doze
    • S-Pen
      • Palm rejection
    • SD Card
    • Power-off mode charging

    # What's not working
    • Fast charging
    • SELinux permissive
    • Hardware encryption
    • Please see the "Known issues" part of this post

    # Downloads

    ## LineageOS 18.1

    ## Google Apps

    ## TWRP Recovery

    # How to install
    1. Unlock the bootloader.
    2. Download TWRP and flash the recovery image via Odin.
    3. Download LineageOS 18.1 for Galaxy Tab S3.
      • Be aware of the board name.
    4. Download GAPPS for Android 11 and the others you want to flash.
      • Only OpenGApps is tested. (open_gapps-arm64-11.0-pico-20210130-TEST.zip)
    5. Enter TWRP recovery.
      • The first boot to TWRP might be very slow because of the unmatched file systems.
    6. Format the whole system, data, cache partitions using the format menu.
      • You will type `yes` to do that.
    7. Flash the images.
      • If you're going to install GApps or something, you have to install the LineageOS first.
    8. Reboot the system.
    9. Done.

    # Known issues
    • OTG drives may show nothing even if it mounted
    • The side button on S-Pen is working but you must use the proper application that can handle the button event
    • Fast-charging won't work properly, it sometimes works but most of the time it won't
    • Sometimes turning on the flashlight via the quick panel doesn't work after using a camera app
    • Using a camera app may cause reducing the UI performance on a launcher app
    • The tablet rarely reboots with a GMS related error
    • Unlocking the lock screen can make tablets not usable sometimes (black screen)
    • Thank all of you for the feedback

    # Sources

    # Telegram Groups
    • If you are interested in developing this potential machine, please tell me through PM then I will send you the invitation link.
    • If you need a general discussion channel for this potential machine or want to share the news of its Android projects from anyone to everyone, you can join our discussion group chat.

    # Buy me a coffee

    # Credits / Special thanks to
    • Android Open Source Project
    • LineageOS Team
    • @Valera1978 for his amazing previous work including his MSM8996 kernel
    • @supermike86 and @samsuffit for testing LineageOS 18.1 for T820, which is I don't have one
    • @bmwdroid and @cherepanov for confirming the LTE works
    • @sebmue for letting me know that the useful information for palm rejection, and @ghostwheel for sharing its working source codes on Android 9
    • @switchgott for helping me in the development discussion and creating Telegram groups
    • All from our Telegram discussion channel, @EonOfBlack , Sands, David Becker, ...
    • @LuK1337 for giving me a hint to fix the quad-speakers.
    12
    Hi all,

    Finally, I can take a picture with my Tab S3 :)

    But still, there are some annoying bugs about the picture resolution, a flashlight behavior, ... but yeah it is usable when I take something using slightly lower resolution without the flashlight.

    Also, for now, both the LOS camera app and Snap camera are not working well while Open Camera and Google Camera seem to be working well.

    For now, the major problem is that if I use a flashlight in the camera app at least once, the overall GUI animations slow down even I closed the camera app.

    So, when I publish the camera fixed version, at least I will fix this most bothering thing even though I can't fix it all for the camera.
    11
    ## Changelogs
    • 2022. 5. 8
      • gts3l-common: Applied the new security patch, April 5, 2022
      • gts3l-common: Switched to use only the MDFPP Keymaster set
      • gts3l-common: Fixed the fingerprint sensor recognition issue on some third-party application
      • gts3l-common: Fixed the Vulkan not activated
      • gts3l-common: Updated awesometic's kernel to v0.9
        • Disabled CPU AutoSMP, as known as CPU auto hotplug
        • Improved stability
    • 2022. 3. 1
      • gts3l-common: Synced with the latest LineageOS source
      • gts3l-common: Fixed the broken hardware button settings
    • 2022. 2. 23
      • gts3l-common: Applied the new security patch, February 5, 2022
      • gts3l-common: Enabled triple buffering of SurfaceFlinger
      • gts3l-common: Enabled partitions on loop devices
      • gts3l-common: Implemented thermal HAL, so that we can get the correct temperature from each hardware components
      • gts3l-common: Changed default CPU governor to blu_schedutil
      • gts3l-common: Changed the schedutil properties
      • gts3l-common: Set the default GPU frequency level to 6, which is 133 MHz in idle
      • gts3l-common: Enabled msm_irqbalance, which is from oneplus3
      • gts3l-common: Updated blobs
        • Updated Adreno libraries to v415, which is from daisy firmware (Android 10)
        • Changed media blobs to daisy firmware (Android 10)
        • Changed perf, thermal libraries to oneplus3 one
      • gts3l-common: Reduces ROM size
        • Removed unused camera firmwares
        • Removed unused Samsung specific OMX libraries
      • gts3l-common: Updated awesometic's kernel to v0.8
        • Cherry-picked lots of common upstream patches from LineageOS kernels
        • Added support for WireGuard
      • gts3llte: Fixed ipacm binary working
    • 2022. 2. 9
      • gts3l-common: Applied the new security patch, January 5, 2022
      • gts3l-common: Fixed fingerprint working on a third-party app
      • gts3l-common: Updated built-in blobs to T825UBU3CUF1 by ZTO (from Brazil)
      • gts3l-common: Changed dynamic_stune_boost to 10 from 15
        • That value indicates a kind of reactivity of the CPU frequency of the schedutil governor. Generally, 10 to 20 is recommended, but in my test setting that 10 is enough to use the tablet smoothly and also can expect better battery and thermal.
    • 2021. 12. 19
      • gts3l-common: Applied the new security patch, December 5, 2021
      • gts3l-common: Fixed aptX, aptX HD working
      • gts3l-common: Fixed WiFi display working
      • gts3l-common: Fixed a download fail problem for some games
      • gts3l-common: Changed the default CPU governor to schedutil
      • gts3l-common: Changed the default I/O scheduler to bfq
      • gts3l-common: Added Dolby audio effect
        • Added that library successfully but don't sure it is working, will investigate that too
      • gts3l-common: Added FlipFlap package for better handling of flip cover flips
      • gts3l-common: Added software navigation bar feature
      • gts3l-common: Enabled ZRAM for 2GB for a 4GB device
      • gts3l-common: Updated awesometic's kernel to v0.6
        • Merged EAS-Project/msm-3.18 and successfully migrated to EAS based kernel
          • Enabled EAS, WALT, Schedtune, Schedutil, ...
        • Added blu_schedutil CPU governor
        • Updated sdfat driver to 2.4.5
        • Updated camera driver
        • Imported/enabled ZRAM with LZ4 compress
        • Imported/enabled BFQ I/O scheduler
        • Optimized memory performance
        • Fixed a flip cover working
        • Maybe more...
    • 2021. 11. 30
      • gts3l-common: Synced with the latest LIneageOS source
      • gts3l-common: Fixed Bluetooth input working including a Bluetooth keyboard
      • gts3l-common: Now it starts to use my custom kernel, awesometic's kernel v0.3
        • Merged android-linux-stable/msm-3.18, which is including up to Linux 3.14.140 patches
        • Merged LA.UM.7.6.r1-07800-89xx.0 CAF tag
        • Replaced the built-in WLAN driver into the CAF one from LA.UM.7.6.r1-07800-89xx.0 tag, which is the latest version
        • Disabled most of Samsung-specific flags including TIMA, KNOX, RESTRICT, ...
        • Enabled F2FS file system
        • Added AutoSMP CPU hotplug feature and enabled by default for better battery consumption
        • Added AdrenoBoost and enabled by default for better GPU performance
        • Added Anxiety I/O scheduler for better I/O performance
        • Enabled TCP Westwood congestion window control by default for better network stability
        • Set CONFIG_HZ to 300 which is recommended in Android devices and it improves overall interactivity and UX with no power cost
        • Now the S-Pen palm rejection is implemented in the kernel rather than the Android frameworks
        • Maybe more...
        • To get the detailed information, please see the third post of this thread
    • 2021. 11. 16
      • gts3l-common: Applied the new security patch, November 5, 2021
      • gts3l-common: Fixed the external keyboards' arrow keys working
    • 2021. 10. 29
      • gts3l-common: Applied the new security patch, October 5, 2021
    • 2021. 9. 22
      • gts3l-common: Applied the new security patch, September 5, 2021
      • gts3l-common: Fixed the power-off mode charging using the Samsung LPM binary
      • gts3l-common: Switched to QTI USB HAL, version 1.2
      • gts3l-common: Cleaned up the keyboard layouts and added the layouts from the latest firmware for Samsung products like the book cover keyboard
      • gts3l-common: Improved power management
    • 2021. 9. 1
      • gts3l-common: Fixed the camera working
      • gts3l-common: Resolved lots of SELinux warnings
      • gts3l-common: Added some props to optimize the video and media performance
      • gts3l-common: Added proper power profiles for better power management
      • gts3l-common: Added a proper thermal-engine config for better thermal management
      • gts3l-common: Change the hotspot location of the pointer arrow
    • 2021. 8. 13
      • gts3l-common: Applied the new security patch, August 5, 2021.
      • gts3l-common: Fixed the quad-speakers working.
      • gts3l-common: Disabled WiFi display feature.
      • gts3l-common: Added support for Adaptive Fast Charge.
      • gts3l-common: Added LiveDisplay HIDL to switch the screen modes.
      • gts3l-common: Added the button backlight control menu.
      • gts3l-common: Added the advanced reboot menu.
      • gts3l-common: Changed to the Light HIDL completely.
      • gts3l-common: Changed the stylus pointer icon to the smaller one.
    • 2021. 7. 29
      • gts3l-common: Fixed headphone jack working.
      • gts3l-common: Fixed Bluetooth audio playback working.
      • gts3l-common: Fixed microphone working.
      • gts3l-common: Fixed AudioFX working.
      • gts3l-common: Made hardware touch key, LCD, Touchscreen, S-Pen disabled when the screen turns off.
      • gts3l-common: Fixed DRM working.
      • gts3l-common: Disabled connecting to WPA3 WiFi.
      • gts3lwifi: Fixed Bluetooth working.
      • gts3lwifi: Fixed vibrator working.
    • 2021. 7. 14
      • gts3l-common: Applied the new security patch, July 5, 2021.
      • gts3l-common: Added support for palm rejection for S-Pen.
      • gts3l-common: Added support for the Freeform Window mode of AOSP.
      • gts3l-common: Removed the "Serial console enabled. Performance is impacted..." message.
    • 2021. 7. 4
      • gts3l-common: Changed the default DPI value to 320.
      • gts3l-common: Added new pointer arrow icon for S-Pen.
      • gts3l-common: Moved fingerprint sensor location when the preview screen that is before the actual enrollment a fingerprint.
      • gts3l-common: Enabled automatically brightness by default.
      • gts3l-common: Enabled adjusting haptic feedback intensity menu.
      • gts3llte: Fixed LTE working.
    • 2021. 6. 28
      • gts3l-common: Separated the device tree into 3 parts, common, LTE, and WiFi.
      • gts3l-common: Changed the default DPI value to 360.
      • gts3l-common: Fixed fingerprint sensor working.
      • gts3l-common: No more adsprpcd errors on the logcat.
      • gts3llte: Added missing RIL-related binaries, init scripts and could check the RIL initialized properly. But an error still repeated on the logcat so I think it won't work yet.
      • gts3lwifi: Added support for Galaxy Tab S3 WiFi variants.
    • 2021. 6. 17
      • Initial release
    11
    Hello all.

    I uploaded the new version, including fixing the power-off mode charging.
    I'm using the LPM binary that is from Samsung for the power-off mode charging. When you plug in the charging cable while the tablet turns off, you can see the original charging screen you might see in the stock firmware. :)

    And I tried to fix the Bluetooth inputs and the OTG drives issues but I couldn't. I can reproduce these problems but I cannot find how to fix them for now. But I can confirm that the wired input devices are working such as a keyboard and a Playstation 4 controller.

    Please check out the first post of this thread. :)
    11
    Great news here. The next release will include the fully-working quad-speakers. :D
    And I also have implemented the audio rotation codes for the screen rotation.

    Actually, I already have used it for about 3 days, and I think it looks working flawlessly.
    And, for the alternatives of the Dolby Atmos, I have tested with the Dolby Digital Plus module with Magisk and I can say that it is awesome. :cool:

    The new release will be uploaded before this weekend. :)