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Senior Member
Jun 19, 2011
I'm still on 3.12 due to havoc os 4 being labeled as beta still.
Anyway I just tested tested out some different values for dalvik vm in build.prop

These are the current AOSP defaults for devices with 6gb of RAM

Havoc OS uses:
dalvik.vm.heaptargetutilization 0.75
dalvik.vm.heapminfree 4m
dalvik.vm.heapmaxfree 8m

AOSP uses:
dalvik.vm.heaptargetutilization 0.5
dalvik.vm.heapminfree 8m
dalvik.vm.heapmaxfree 32m

the other 3 values are the same

of course there are Oneplus 3 devices with less RAM, but my 3T has 6GB RAM so I gave them a test and I feel like they improved performance on my device :)

My guess why they improve performance:
it might not be as efficient since the heap can be up to 50% larger than necessary but the vm doesn't have to increase/decrease heap size as often.
Also the VM doesn't have to free RAM as often to have exactly 4-8m free.

Other ROMs have 2-8m or 8-16m but there is more memory to play with than just 4m

heapminfree/heapmaxfree is used to avoid kernel calls afaik and therefore delay (reduce latency).

Values for havoc OS in the github repo seem to differ again, but in a different way:
I would prefer 16m heapstartsize still
Havoc 4.x is not beta for long time. Latest is 4.4 or 4.3 depends from device...However some device might be drop out from further development...Check it for Havoc-OS website or Telegram group for latest version for your device.
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Senior Member
Jul 8, 2012
Havoc 4.x is not beta for long time. Latest is 4.4 or 4.3 depends from device...However some device might be drop out from further development...Check it for Havoc-OS website or Telegram group for latest version for your device.
thx a lot
I only checked the other post

and sourceforge
while updates are only posted to

Oswald Boelcke

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New member
Sep 19, 2018
Great Rom, i only have one issue, the flashlight turns on randomly, couple of times a day, any idea how to adress this problem? Thanks!


Senior Member
Apr 26, 2011
Havoc 3.2 22022020 latest build, OnePlus camera issue can't select HDR. HDR always off and slow motion not working. One more issue I use 2 sims one jio and other Airtel. Jio in slot 1 and Airtel in 2. If I select jio or airtel Volte is showing on statusbar. Issue is when i select airtel sim for mobile data can't receive calls and I have to change preferred network type from lte/tdscdma/gsm/wcdma(4g) to tdscdma/gsm/wcdma(3g or 2g) to receive calls. Is there any solution for this ?.
change SIM card slot seems to fix it for me.

I changed from lte/tdscdma/gsm/wcdma > LTE only with 4g.

Remove sim and insert again.


New member
Jun 18, 2021
Hai i have an issue on v4.13 where i tried to debug my own app using android studio but somehow it show no debuggable process..tried on other custom rom, no issue at all..


Senior Member
Aug 25, 2015
OnePlus 3
Xiaomi Poco F3
I'm trying havoc right now (4.14). I've decided to try the new build, too because of the security patch.
Its all working flawlessly till now. But I miss some functions/customizations.
But the worst part is the battery consumption. Damn, havoc is thirsty! Its consuming power like no other rom that I've tried till today.
I was on crdroid before, and havoc is consuming around 70% more... That's a lot.
So I'm gonna get back to my beloved RR, and probably stay in it till my device rip eheh


Apr 2, 2020
the new version of Havok 4.14 is an excellent firmware with excellent power consumption, everything pleases me for a couple of days

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    Havoc-OS 3.x is based on AOSP, inspired by Google Pixel.
    Has a refined Material Design 2 UI crafted by @SKULSHADY.
    Many useful features that will blow your mind.
    All you can dream of and all you'll ever need.
    Just flash and enjoy...


    Material Design 2 UI
    Android R Style Screenrecord Dialog
    Rounded UI
    Inbuilt GApps (optional)
    Face Unlock
    Enhanced QS Battery Estimation
    Lockscreen Clocks
    Font Customisation
    Dark Theme Support for AOSP apps
    Notification LED Settings
    Pixel Lockscreen weather
    Signature Spoofing
    Micro-G support
    Lockscreen charging animation
    [SIZE="3"][B][U]Status Bar:[/B][/U][/SIZE]
    Clock & Date Settings
    Custom Logo
    Brightness Control Gesture
    Double Tap to Sleep
    Network Traffic Indicator Settings
    Carrier Label Settings
    Battery Icon Style/Percentage Settings
    Status Bar Icons Toggle
    HD/VoLTE Icon Toggle
    4G/LTE Icon Toggle
    Data Disable Icon Toggle
    Roaming Indicator Toggle
    Small Mobile Type Icon Toggle
    Bluetooth Battery Status Toggle
    [SIZE="3"][B][U]Quick Settings:[/B][/U][/SIZE]
    Quick Pulldown
    Smart Pulldown
    Battery Estimates Toggle
    Background Opacity
    Background Blur Configuration
    Header Image Configuration
    QS Customisations
      Tile Title
      Vibrate on Touch
    Brightness Slider Customization
      Brightness Slider On Bottom/Top/Hidden
      Auto Brightness Icon
      Brightness Control Buttons
    QS Footer Customization
      Settings Icon
      Running Services Icon
      Edit Icon
      User Switcher Icon
    [SIZE="3"][B][U]Ambient Display:[/B][/U][/SIZE]
    Show/Hide Battery Level
    Ambient Options
      Always On
      Always On When Charging
      Wakeup On New Notifications
      Wakeup on New Music (Music Ticker)
      Sensor Based Screen Wakeup (Tilt/Hand Wave/Pocket)
      Double Tap for Ambient Display
    Ambient/Always On Display Brightness Configuration
    Corners Customisation
      Rounded Corner Radius
      Corner Content Padding
    Legacy App Scaling
      Force Higher Aspect Ratio for Selected Apps
      Nav Bar Toggle
      System Navigation Type
      Arrows Keys
    Volume Buttons
      Swap Keys
      Volume Steps
      Long Press to Seek Tracks
      Keyboard Cursor Control
      Volume Rocker Wakeup
      Volume keys Answer Call
    Power Button
      Power Menu Customization
      Lockscreen Options
        Visibility on the Lockscreen
        Advanced Reboot
        Screenshot Option
      Screen-Off Torch
        Double Tap Power Button
        Long Press Power Button
    Back Gesture
      Arrow Animation toggle
      Long Swipe Type (Swipe and Hold/Swipe Edge to Edge)
      Long Swipe Timeout
      Long Left/Right Swipe Action
      Haptic Feedback toggle
    Jump To Camera
    System Navigation Settings
    Prevent Ringing Gesture
    Swipe To Screenshot
    Touchscreen Gestures
    Double Tap to Sleep
    Media Cover Art
    Media Cover Art Blur Level
    Music Visualiser
      Pocket Detection
      Screen Off FOD
      Show Icon
      Recognizing Animation
      FP Authentication Vibration
      FP error Vibration
    Elements Customisation
      Status Bar
      Quick Settings
      Lock Icon
      Charging Info
      Blink for incoming call
      Blink for Call Waiting
      Edge Lighting Customisation
    Status Bar
      Heads Up
      FC Notifications
      Kill App Button
      Noisy Notifications
    Animation Duration
    System Animation customization
    QS Tile Animation Customisation
    [SIZE="3"][B][U]Battery Saving:[/B][/U][/SIZE]
    Smart Pixels
    Suspend Actions
    Gaming Mode
    Wake Up on Charge
    Charging Animation
    Screenshot Type (Full/Partial)
    Adaptive Playback
    Playback Timeout (30sec/1min/2min/5min/10min)
    [SIZE="3"][B][U]Other Features:[/B][/U][/SIZE]
    Vibration & Haptics Customization
    Notch Hide Settings
    Seperate ringtone for SIM1&2
    Screen Refresh Rate (For Supported Devices)
    ALways On Display
    Smart Charging
      Styles and Wallpapers
      Dark Theme
      Accent Colour
      Icon Shape
    [SIZE="3"][B][U]QS Tile Shortcuts:[/B][/U][/SIZE]
      Heads Up tile
      Caffeine tile
      CPU info tile
      Smart pixel tile
      Live Caption
      Screenrecord tile
      Gaming Mode tile
      Screenshot tile
      LTE tile
      Music Tile
      Switch Data Card Tile
      Reboot Tile
      Reading Mode
      Gaming Mode
      Sound Search
      Compass Tile


    Founder & Lead Developer:
    SKULSHADY (Anushek Prasal)

    Support Team:
    theo.j22 (Tushar Jain)


    If you like our work then please consider donating.
    PayPal: https://www.paypal.me/ANUSHEK
    UPI: [email protected]



    1. Download the ROM, GApps, Magisk.
    2. Wipe System, Data, Dalvik.
    3. Flash the ROM, GApps (Optional), Magisk (Optional).
    4. Reboot and Enjoy.


    LineageOS (https://github.com/LineageOS)
    Crdroid (https://github.com/crdroidandroid)
    Pixel Experience (https://github.com/PixelExperience)
    Nitrogen Project (https://github.com/nitrogen-project)
    Omnirom (https://github.com/omnirom)
    And all the other Developers, Testers, Donators and Users.


    XDA:DevDB Information
    Havoc-OS, ROM for the OnePlus 3

    ROM OS Version: 9.x Pie
    ROM Kernel: Linux 3.1.x
    Based On: AOSP

    Version Information
    Status: Stable

    Created 2018-12-26
    Last Updated 2020-04-05
    ##### Havoc-OS v2.0 Official Build #####

    OnePlus 3/3T Android Pie Release

    Initial Release

    Clean flash necessary. To get VoLTE working please flash the volte_hack.zip linked below.
    Latest stable firmware recommended.

    Full OOS Cam support included too.
    Encrypted devices may not be supported yet. But feel free to try and report.
    Everything works as expected. Let us know if something doesn't work.
    Attach logs with your bug report.

    Installation instructions remain the same as second post.
    Users who want VoLTE can flash the volte_hack.zip after the ROM.

    Maintainers: @ZeNiXxX / @SKULSHADY

    ROM: Havoc-OS-v2.0-20180826-oneplus3-Official.zip
    GApps: Unofficial Open GApps
    Volte Hack: volte_hack.zip
    ##### Havoc-OS v2.0 Official Build #####

    OnePlus 3/3T Update 08-11-2018

    Happy Diwali!!! :eek: Probably the biggest update yet...


    * Added November Security Patches
    * Added Rootless Substratum support
    * Added new Lockscreen weather implementaion
    * Added Rounded corners radius seekbar
    * Added Rounded corners content padding seekbar
    * Improved Compass tile
    * Fixed Lockscreen clock font values
    * Centered the toast message
    * Fixed Data SIM switch bug
    * Fixed Sim related bugs
    * Improved Now Playing
    * Added Now Playing history
    * Added Now Playing music note animation
    * Added Keyguard charging animation
    * Added Per-app cellular data and wifi restrictions
    * Added Lockscreen date font styles
    * Added Statusbar notification ticker
    * Added Notification ticker animations
    * Added Switch for statusbar wifi data indicators
    * Added Gesture anywhere
    * Added Pulse for navbar
    * Added Pulse blacklist
    * Added Notification counters
    * Improved QS panel layout
    * Added Ripple effect to power menu
    * Added Mute media with gesture option
    * Increased time for recent tasks in memory
    * Added Full gesture navbar option
    * Added Double tap to sleep on full gesture navbar
    * Added more compatibility for screen off volume keys
    * Added description of Gaming mode tile on long press
    * Added FP swipe to dismiss notifications
    * Added back the mobile switch in statusbar icons
    * Improved layout of QS tiles without titles
    * Added Night mode options (Dark theme based on time)
    * Added option to use Night mode with battery saver
    * Added option to set different ringtones for dual SIMs
    * Added SELinux status in about phone
    * Added some more optimizations
    * Added new icons for system apps
    * Removed Omnijaws
    * Fixed USB options for some devices
    * Fixed Multi user switching
    * Fixed Statusbar layout and padding
    * Fixed Media scanning issues with SDcards
    * Fixed QS panel expanding with Airplane tile
    * Fixed Lockscreen charging current values
    * Fixed On-the-go tile inactive state
    * Fixed QS tile customizer layout
    * And some more fixes

    * Added full OnePlus Camera support
    * Added OnePlus Gallery
    * Updated kernel to HDK v0.2.1
    * Increased In-Call volume
    * Updated power profiles for Pie
    * Updated performance and gaming spectrum profiles
    * Fixed Bluetooth issues
    * And some more stuff...

    Clean flash recommended.
    Installation instructions remain the same as second post.
    To fix Substratum install this apk: https://drive.google.com/file/d/1B4HOGE1jyUfPrhVeFdtJxTrZRU97Kt5S/view?usp=drivesdk

    Havoc-OS OnePlus Group: https://t.me/havoconeplus
    Havoc-OS Telegram Group: https://t.me/havocofficial

    ROM: Havoc-OS-v2.0-20181108-oneplus3-Official.zip
    GApps: Official Open GApps

    Guys if you like our work then please consider donating.
    Even a small donation goes a long way. Here's our link:
    ##### Havoc-OS v2.0 Official Build #####

    OnePlus 3/3T Update 16-10-2018


    * Fixed VoLTE
    (No more sim popups on boot)
    * Fixed Encryption
    (Need to encrypt from Settings)
    * Added Sim Disable toggle
    * Added Now Playing (Ambient Play)
    * Added Now Playing QS tile
    * Added New accent picker and more accents
    * Added Theme QS tile
    * Added Material design toasts
    * Added Option to switch to Oreo style recents
    * Added Immersive Recents
    * Added Option to show clock in immersive recents
    * Added Option to show date in immersive recents
    * Added Membar in recents
    * Added Recents Styles
    * Added App Circle sidebar
    * Added Pixel navbar animation toggle
    * Added Volume key sounds
    * Added SystemUI restart on theme change
    * Added Hide notch toggle
    * Added Proximity check on wake
    * Added Option to hide indicator text on lockscreen
    * Added Option to hide lock icon on lockscreen
    * Added Option to hide bottom shortcuts on lockscreen
    * Added Long press actions on QS tiles to open their settings
    * Fixed Long press actions on all QS tiles
    * Added CPU info improvements
    * Added Equalizer
    * Added Turbo
    * Added Fixes
    * Added Optimizations
    * Added Scrolling improvements
    * Fixed Battery settings FC
    * Fixed Lockscreen rotation
    * Fixed Wallpaper based theming
    * Display power reduction
    * Assisted GPS toggle
    * Switched back to interactive
    * Updated the kernel to HDK v0.2.0 Thanks to @HolyAngel
    * And some more stuff...

    Encryption is now supported.
    The encrypted users coming from Oreo need to first decrypt and then encrypt via settings in Pie.
    VoLTE has been fixed for good. No extra zips needed.
    Clean flash highly recommended. This time for real.
    Installation instructions remain the same as second post.

    Disable Rounded Corners Subs Theme: https://goo.gl/CcEMzi

    ROM: Havoc-OS-v2.0-20181015-oneplus3-Official.zip
    GApps: Official Open GApps