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

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Senior Member
Jan 30, 2013
A problem that this ROM have is the wifi keeps falling every 5min or so, and I can't enter the wifi and bluetooth menus via hold quicksettings icon, only via Settings.

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    * 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
    • 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

    ## Google Apps

    ## TWRP Recovery

    # 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

    # 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
    • 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.
    ## 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
    Hello all,

    I uploaded the update for HavocOS. Now, we're using HavocOS 4.16.
    The overall changelogs will be the same as the LineageOS 18.1 I wrote in this forum too.

    Check the update, thanks. :)

    I uploaded the new version for HavocOS and LineageOS. Please visit my LineageOS thread to check the changes.

    Edit3: haptic vibration setting does not seem to work. Whatever I choose light, medium or high, the result is the same.
    Thank you for the feedback. And that part, actually I feel like it doesn't work like you. I will remove that feature in the coming version.

    Thank you so much for releasing this; I think my S3 tab might have some life left in it now. I have two questions:
    1. Would it be correct that you are not planning on implementing a SafetyNet fix such as https://github.com/kdrag0n/safetynet-fix and the best thing to do is install Magisk and install this module even if we don't need root?
    2. I see that you just fixed the fingerprint reader not working in 3rd-party apps (bank apps, password managers, etc.) in your Lineage S3 tab release. Will that fix be coming to this ROM? Or is there an easy workaround we can implement to get it working in apps?
    Thank you again for your work on this. VERY much appreciated.
    To fix the SafetyNet without root, we need SELinux enforcing as far as I know. And this part is so hard for me yet 😅
    And every change is applied to the HavocOS. Those two ROMs share the same device tree.
    I found a solution for the Netflix issue!

    Before flashing LOS and HavocOS I had a modded version of stock installed. Possibly bootloader or other parts were not the latest version. So I flashed the last version of the stock ROM for my region via Odin and then reflashed TWRP, the Rom, gapps, Magisk as outlined above. Now Netflix is working without issues. :)
    So for anyone else coming from a ROM that's not completely stock (or possibly also from an older stock ROM?) and running into issues with Netflix or other apps, this may be worth a shot.