[ROM][UNOFFICIAL][11][EAS][SM-T820][SM-T825][2022-05-08] HavocOS 4.16 for Galaxy Tab S3

[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.
*/

# HavocOS

Havoc-OS is an after-market firmware based on Android Open Source Project, inspired by Google Pixel with a refined Material Design 2 UI. We offer a smooth and stable experience for your device with a selected set of amazing features that provide an exceptional user experience.


# 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

• Some HavocOS features like AppLock
• Fast charging
• SELinux permissive
• Hardware encryption
• Please see the "Known issues" part of this post

# Downloads

## HavocOS 4

• 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

# How to install

1. Unlock the bootloader.
2. Download TWRP and flash the recovery image via Odin.
3. Download HavocOS 4 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

• Follows it might have the same issues on my LineageOS 18.1
• 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
• HavocOS 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.

 

[Awesometic]

## Changelogs

• 2022. 5. 8
  • gts3l-common: Applied the new security patch, April 5, 2022
  • gts3l-common: Updated to HavocOS 4.16
  • The other changed things are the same as the LineageOS 18.1 (2022. 5. 8)
• 2022. 2. 23
  • gts3l-common: Applied the new security patch, February 5, 2022
  • gts3l-common: Updated to HavocOS 4.14
  • The other changed things are the same as the LineageOS 18.1 (2022. 2. 23)
• 2022. 2. 9
  • gts3l-common: Applied the new security patch, January 5, 2022
  • gts3l-common: Updated to HavocOS 4.13
  • The other changed things are the same as the LineageOS 18.1 (2022. 2. 9)
• 2021. 12. 19
  • Initial release

## Good to know

• Basically, it follows my LineageOS 18.1 changelogs.

 

[Awesometic]

reserved

 

[elchmartin]

nice to see something happening for the s3 ...
cannot test right now, but great work so far ;-)

 

[Floobah]

How does havocOS Compare to your lineageOS in terms of speed?

 

[Awesometic]

How does havocOS Compare to your lineageOS in terms of speed?

I think those two have the almost same speed. But HavocOS has more customizable options and it passes CTS profile with Magisk Hide.

 

[Stogie87]

This rom works very well. Thanks for releasing it.

 

[xpil]

I have installed the lineage OS 18.1 ROM recently. Can I dirty flash this one or I have to format everything and loose root and all the applications I have installed?

 

[Awesometic]

I have installed the lineage OS 18.1 ROM recently. Can I dirty flash this one or I have to format everything and loose root and all the applications I have installed?

You should format everything to move to another ROM. It is strongly recommended, and we don't know what problem will be caused by dirty flashing from LineageOS to HavocOS.

 

[Stogie87]

I have installed the lineage OS 18.1 ROM recently. Can I dirty flash this one or I have to format everything and loose root and all the applications I have installed?

I did a dirty flash from latest LOS 18.1 to Havoc since it has the same LOS base and i had no issues so far.
But i idk how it will be for you. Only thing i did was formating system partition in TWRP before i flashed Havoc.
But try it on your own risk.

 

[ptwilliams]

I was literally about to trade in my Tab S3 as it was on its last legs. Slow to do anything other than browse and even that was painful.

Having read these forums for a long time I thought I'd give this a try before committing £600.

After a few hiccups with TWRP not seeming to 'stick' I finally managed it.

What a difference! Its seriously like a new machine.

Fast, responsive and up to date.

Thank you so much for all your hard work.

 

[KL643]

I was literally about to trade in my Tab S3 as it was on its last legs. Slow to do anything other than browse and even that was painful.

Having read these forums for a long time I thought I'd give this a try before committing £600.

After a few hiccups with TWRP not seeming to 'stick' I finally managed it.

What a difference! Its seriously like a new machine.

Fast, responsive and up to date.

Thank you so much for all your hard work.

I was exactly at the same point.. The difference is night and day! Great work from the Dev! Donation on the way

 

[Duvel999]

Hi Awesometic,

Thx for this rom.
Gonna try it.
Can I use open_gapps-arm64-11.0-pico-20211217 ?
Is this the right and latest one?

 

[Awesometic]

Hi Awesometic,

Thx for this rom.
Gonna try it.
Can I use open_gapps-arm64-11.0-pico-20211217 ?
Is this the right and latest one?

Yeah it seems like. You can use that version, it should work.

 

[n2f]

thanx.....but i keep losing Gps signal

 

[kream21]

Thanks for the hard work! This rom is awesome! I gave up on this tablet due to lack of support. I feel like you made this a true ipad contender!

 

[kream21]

I hope you do android 12 as well!

 

[xpil]

Dear all. I have a question and if someone knows please help. I installed yesterday viper4android via magisk. Even though I played with all its parameters I could NOT notice any changes in the sound of the speakers. I CAN'T understand why.

 

[prubyholl]

Dear all, I have tried the steps to flash the HAVOC rom but facing an error. My tab (825) is correctly unlocked and the right recovery flashed. It can boot successfully to the recovery, however I see the error E: failed to verify whole-file signature. With other ROMs I flash, I am able to skip the signature verification prompt which does not appear here.

Please help me out if you can.

Thanks all.

 

[312321321321432]

Dear all, I have tried the steps to flash the HAVOC rom but facing an error. My tab (825) is correctly unlocked and the right recovery flashed. It can boot successfully to the recovery, however I see the error E: failed to verify whole-file signature. With other ROMs I flash, I am able to skip the signature verification prompt which does not appear here.

Please help me out if you can.

Thanks all.

You need to install TWRP to install custom rom.