How to download and install Havoc OS on Mi A2 (Android 9 Pie)

Xiaomi Mi A2 is one of the popular Stock Android devices runs on the Android One platform. It’s a successor of the Mi A1 device and comes with so many features and mid-range specifications as well. As the handset runs on Stock Android UI and doesn’t have so many customizations or themes, some of the users want to flash any Custom ROMs on this device. If you’re also a Mi A2 user and want to flash an Android Pie based Custom ROM, here is the guide on how to download and install Havoc OS on Mi A2.

But before going to the flashing requirements and process, you should check out the Havoc OS features and other details.

Contents show

Havoc OS v2.4 Official Build Features

Havoc OS is based on AOSP and inspired by Google Pixel ROM. It has a redesigned material theme-based UI with so many extra features and customizations which you won’t find in any other ROMs. It brings system stability and performance-based user experience with every official stable build.

General Features:

MD2 UI
Rounded UI
Pixel Lockscreen weather
Substratum Support
Compiled using SDCLANG
OTA Support
Signature Spoofing
Micro-G support
Lockscreen charging animation
In-built Oneplus Camera & Gallery (Oneplus Device only)

Status Bar:

Double tap to sleep
Statusbar brightness slide
Quick & Smart pulldown
Clock Settings
Breathing Notifications
Battery customization
Battery bar
Network traffic indicator
Carrier label customization
Notifications count
VoLTE icon toggle
Bluetooth battery status
Old Mobile-type style
4G/LTE icon switch
Data disable icon toggle

Quick Settings:

Layout customization
Brightness Slider customization
Auto Brightness icon
Bottom brightness slider
Running services icon toggle

Interface:

Expanded Desktop
Themes
Background Color(Light/Dark/Black)
Notification Color(Light/Dark/Black)
Accent Color Picker
Auto Night mode
QS Header & Tile Style
Font Manager
Rounded Corner adjuster
Dashboard toggles

Ambient Display:

Now Playing
Now Playing History
Always On Display
Ambient Display options(Tilt/Pick-up/Hand wave/Pocket)

Screen:

Smart Pixel
Screen Stabilization

Buttons:

Volume Rockers
Switch to make ringtone volume slider default
Dialog timeout
Volume steps
Keyboard cursor control
Reorient on rotate
Music Control
Volume Rocker Wake
Volume keys call answer
Power Button
Power Menu customization
Screen off power button torch
Hardware keys
Disable keys
Swap keys
Backlight timeout
Backlight adjuster
Accidental touch toggle
Single/Double/Long-press button action

Navigation bar:

Pixel animation
One-handed mode
Navbar Pulse
Navbar button Swap
Layout
Extra button

Gestures:

System Gestures
Jump to camera
Prevent ringtone
Swipe up on Home button
Full gesture mode
Swipe to Screenshot
Swipe Gestures
Navigation
Swipe up gesture
Edge gesture
App Circle bar
Pie control
Gesture Anywhere

Lockscreen:

Double tap to sleep
Media cover art
Lockscreen Visualizer
Clock/Date Font style & Size
Weather unit
Unlocking
Pin Ripple
FP authentication vibrate
Face auto unlock
FP unlock on reboot
Pocket detect
Quick Unlock
Scramble layout
Direct unlock
Disable Lockscreen Elements
Quick Settings disabled
Disable Statusbar
Lockscreen charging info
Hide lock screen bottom elements
Lock screen shortcuts

Recents:

Recent style (Pie/Oreo/OmniSwitch)
Oreo Recent customization
Clear all button
Memory bar
Immersive recent tabs
Hide app from recent tabs

Notifications:

Lights Customization
Charging light
Notification light
Blink Flashlight on Call
FC notification disable
Disable Immersive messages
Heads Up
Customization
Less Boring Heads Up
Ticker Notification
Ticker Animation
Misc
Toast Icon toggle
Noisy Notification toggle
Force Expanded notification
In-call Vibration customization

Animations:

Disable animation
Animation Duration
Animation customization
List view animation
QS tile animation
Power menu animation
Screen off animation
Toast animation
Scrolling Cache

System:

Signature Spoofing
CPU info
Privacy Guard
Chooser Activity blacklist
Burn-in protection

IME Settings:

Selector notification
Auto keyboard rotation
Disable fullscreen keyboard
Show enter key

Battery Saving:

Sensor block per-package
Alarm Blocker
Wakelock Blocker
Suspended Actions
Doze settings

Miscellaneous:

MediaScanner behavior on boot
Wake up while charging
Launch music app
Screenshot type (Fullscreen/Partial)

Other Features:

Advanced Battery info
Night Light brightness options
On-the-go mode
Prevent Accidental wake-up
Separate ringtone for SIM 1 & SIM 2

QS Tile Shortcuts:

Heads Up tile
Caffeine tile
Ring mode tile
CPU info tile
Suspended action tile
Smart pixel tile
Now playing tile
Ambient display tile
AOD tile
Screen record tile
Stabilization tile
Gaming Mode tile
Screenshot tile
Accidental touch tile
Alarm/Calc/Phone/Camera/Music tiles
Expanded Desktop tile
Havoc settings tile
HW key tile
LTE tile
Navbar tile
On the go (OTG) tile
Pie control tile
Reboot tile
Sleep screen tile
Accent picker tile
Volume panel tile
High Brightness tile

Device Features:

Spectrum Power Profile
Screen Calibration
Custom Calibration
High Brightness Mode
Off-screen gestures
D2TW
Slider customization
Vibration strength slider

How to download and install Havoc OS on Mi A2 (Android 9 Pie)

Havoc OS v2.4 Pie ROM Details:

ROM OS Version: 9.x Pie
ROM Kernel: Linux 4.x
Firmware Required: Unlocked Bootloader
Based On: Havoc OS
Status: Beta
Created: 2018-12-23
Last Updated: 2019-04-08

Havoc OS v2.4 Official Stable Build [08.04.19] Android Pie: Changelogs

Added systemwide adaptive icon setting
Added mobile data tile icon from Oxygen OS (OnePlus devices only)
Fixed proximity sensor issues in Dialer
Fixed partial screenshot
Music ticker on AOD fixed
Fixed multiuser icon glitch in QS footer
Fixed system crash when encrypting from settings
Merged April security patches
Added media cover art filters
Added Browser
Improved gaming mode tile

Now let’s talk about how to download and install Havoc OS on Mi A2 based on Android 9 Pie.

Pre-Requirements:

This guide and files are only for Mi A2. Don’t try to flash these files on any other device.
Required a USB cable and a computer to unlock the device bootloader.
Your device bootloader should be unlocked at first.
Download ADB Fastboot Tool and extract it on your PC/Laptop and install it.
Take a full backup of your device before starting the installation process.
Keep your device battery charged at least 60%-70% for a smoother flashing process.
Enable USB Debugging and OEM Unlock from Developer options via device Settings.
Download twrp.img file for Mi A2 and copy it on your device.
Install the Custom TWRP Recovery on your device.
Enable USB Debugging and Unlock the Bootloader on your device.
After installing TWRP, you can root your device. (Optional)

Disclaimer! Do it at your own risk. Gadget Headline will not be responsible for any kind of damage or error occurs to your device during following the process. It’s recommended to follow the step-by-step method provided below.

Steps to Unlock Bootloader of Xiaomi Mi A2/A2 Lite Device:

You need to connect your Mi A2/Mi A2 Lite device with your PC via a USB cable.
Go to the installed ADB Fastboot directory (C: drive) and open terminal or command prompt directly.
Reboot your phone to Fastboot mode by typing the following command and press enter.

adb reboot bootloader

Check your device to grant permission for your PC for the first time.
Your device will boot into the Fastboot mode. Now, type the below command and press enter.

fastboot flashing unlock

You will get a notice that you’re trying to unlock your device bootloader. Select the option normally to unlock via your device volume key and press the power key to confirm the selection.
The unlock preparing process will start and you have to wait for some time. Your device data will be erased completely.
Restart your device into Fastboot mode by the earlier process.
Now, type the following command and press enter.

fastboot flashing unlock_critical

You will get a warning notice again. Just follow the options and your device will be restart again.
You’re done! Now, your Mi A2/A2 Lite device bootloader is unlocked properly.

All Download Links:

Download Havoc OS v2.4 for Mi A2

Download TWRP Recovery

Download Open GApps

How to install Havoc OS on Mi A2 [Steps]

Download the ROM and GApps from the links above.
Copy both the files on your device storage (Internal/external).
Switch off your Mi A2 device then press and hold the Volume Down + Power button together for a few seconds to enter in TWRP Recovery mode. [Follow the guide – same process]
You will enter into the TWRP Recovery Menu.
Now, go to the Wipe > Select Wipe System, Data, Dalvik, Cache > swipe to confirm wipe.
Back to the main TWRP menu and tap on Install button.
Search for the downloaded ROM file destination and select the firmware file.
Swipe to confirm flash and wait for a few minutes to complete the installation process.
Now, go back again to the home screen and select Install. Search for the GApps file from the storage and confirm flash again.
After a complete flashing, tap on Reboot Now option.
It will take around 10-15 minutes to boot for the first time.
You’ve successfully installed Havoc OS v2.4 Pie ROM on your Mi A2. Enjoy! 🙂

How to download and install Havoc OS on Mi A2 (Android 9 Pie)