Download and Install Havoc-OS 4.0 ROM on OnePlus 3 & 3T (Android 11)

Learn how to download and install Havoc-OS ROM on the OnePlus 3 and 3T. Havoc-OS 4.0 is a custom ROM based on the latest Android 11 update. The ROM is created and maintained by SKULSHADY and is available on a number of Android phones. Now, the ROM is also available on both the OnePlus 3 and 3T.

Havoc-OS 4.0 ROM is based on Android 11. This is the latest mobile OS version released by Google in 2020. Besides a new number, Android 11 comes with lots of features and optimizations. For example, a new feature called Bubbles allows users to chat while multitasking. You can pin conversations which will appear on top of other screens and pages, so you can easily keep the conversation going. Furthermore, there’s built-in screen recording, smart replies, device controls, media controls, and much more.

You can enjoy the latest and greatest features of Android 11 on your OnePlus 3 and 3T by installing the Havoc-OS 4.0 ROM. Follow the tutorial below to learn how to do so. We have provided all the required files that you need to download.

How To Install Havoc-OS 4.0 Android 11 ROM on OnePlus 3 and 3T


You are about to install a custom ROM on your OnePlus 3/3T. If you properly follow the tutorial below, you will be running the latest ROM in no time. However, please note that there might be issues along the way. We shall not be held responsible if you damage or brick your phone. Please proceed at your own risk.

Supported Phones

Havoc-OS 4.0 is cross-compatible. This means the ROM is compatible with both the OnePlus 3 and 3T.


In order to flash Havoc-OS on your OnePlus 3/3T, you need to have an unlocked bootloader. You cannot do this if you have a locked bootloader. Furthermore, you need a custom recovery to flash the flashable ZIP file. For this, you need a custom recovery. We recommend you to use TWRP.
  • Backup everything on your phone before you do anything. A factory reset is always recommended when installing a new ROM, especially if the old ROM is not the same as the old one.
  • Charge your phone to at least 60%. In case something goes wrong and the phone gets stuck, it will not turn off due to a low battery.
  • Make sure you have a custom recovery installed. TWRP is the recommended recovery for ROM installation.

Known Issues

  • VoLTE
  • Encryption

Download Center

Steps to install Android 11 ROM (Havoc-OS) on OnePlus 3 and 3T

This version of LineageOS ROM only works on the OnePlus 3 and 3T. Please do not install this ROM on any other OnePlus devices, because you might brick your device.
  1. Download all the necessary files and transfer them to the internal storage of your OnePlus 3/3T.
  2. Remove the lock screen PIN or password if you have one.
  3. Press and hold the power button. Tap on power off to turn off the phone.
    1. Hold and press the volume down + power buttons at the same time. Release them when the screen turns on. The phone will go into recovery mode.
  4. Before you flash the ROM, you need to wipe data. To do so, tap on Wipe and then choose Advanced Wipe. Select Dalvik / ART cache, System, Vendor and Data. Swipe to wipe.
    Do not select the Internal Storage option. If you do so, everything in your phone’s internal storage will get deleted including any photos and videos.
    twrp oneplus 3 3t
  5. After wiping the data on your phone, tap on Install. and select the downloaded Havoc-OS file. Swipe to flash. Wait for the ROM to be installed.
  6. After the ROM is installed, tap on Install once again. This time, select the Android 11 Gapps package. Again, swipe right to install.
  7. Reboot your phone after you have performed everything above.

That is all you need to do to install Havoc-OS ROM on your OnePlus 3/3T. If you go to the app drawer, you will also see apps such as YouTube, Google Maps, and Google Play Services, thanks to the Google Apps package that you installed. If you have any questions, leave a comment below.