[Samsung Galaxy Tab S3 ROMs, Kernels, Recoveries, &] Awesometic:
/*
* 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

Hardware Encryption

MDFPP

SD Card

Power-off mode charging

# What's not working

SELinux permissive

Please see the "Known issues" part of this post

# Downloads

## LineageOS 18.1

Galaxy Tab S3 LTE (gts3llte, SM-T825)

Galaxy Tab S3 WiFi (gts3lwifi, SM-T820)

## Google Apps

OpenGApps

NikGApps

BiTGApps

Others may also work but not tested

## TWRP Recovery

You can use mine, please visit this thread.

You can use F2FS file system for cache, data partitions with my TWRP recovery.

[RECOVERY][SM-T820][SM-T825][UNOFFICIAL] TWRP for Galaxy Tab S3

Using TWRP 3.5.2 is highly recommended

Galaxy Tab S3 TWRP archive

# How to install

Unlock the bootloader.

Download TWRP and flash the recovery image via Odin.

Download LineageOS 18.1 for Galaxy Tab S3.

Be aware of the board name.

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)

Enter TWRP recovery.

The first boot to TWRP might be very slow because of the unmatched file systems.

Format the whole system, data, cache partitions using the format menu.

You will type `yes` to do that.

Flash the images.

If you're going to install GApps or something, you have to install the LineageOS first.

Reboot the system.

Done.

# Known issues

Camera somewhat buggy

Sometimes the camera doesn't work after booting. You can fix that back by just rebooting

On webcam chat apps, there is a vertical green bar and the color is not properly displayed

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 works (15W) but currently the kernel reports the wrong charging voltage and current

Thank all of you for the feedback

# Sources

Device Tree

gts3l-common: https://github.com/awesometic/android_device_samsung_gts3l-common

gts3llte: https://github.com/awesometic/android_device_samsung_gts3llte

gts3lwifi: https://github.com/awesometic/android_device_samsung_gts3lwifi

Kernel: https://github.com/awesometic/android_kernel_samsung_msm8996

Vendor: https://github.com/awesometic/proprietary_vendor_samsung

# 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.

Galaxy Tab S3 General Discussion

# Buy me a coffee

If you like my efforts or would like to support me, please don't hesitate to buy me a cup of coffee. :)

https://www.paypal.com/paypalme/awesometic

# 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.