How To Installing Rom

Now Get Android 8.1 Oreo On OnePlus 3/3T With Nitrogen OS 8.1 ROM

Now users can easily download and install Android 8.1 Oreo On OnePlus 3 and OnePlus 3T with latest Nitrogen OS 8.1 Custom ROM.Google has already released the official Android 8.1 Oreo for Google Pixel and Nexus phones.Google also has released the source code of Android 8.1.

Many manufacturer like OnePlus are now releasing Android 8.1 Oreo beta updates to their flagship phones.There are many developers who are working on Custom ROMs for various devices which will be based on Android 8.1 Oreo’s source code.

Lineage OS has also mentioned that they might skip the Android 8.0 Oreo and release the Lineage OS 15.1 which will be based on Android 8.1 Oreo.We have done a separate article about that, if you are interested you can read that here

OnePlus 3 and 3T has officially received the Android 8.0 Oreo Update and they will soon get the Android 8.1 Oreo Beta Update officially.But for now there is no official update available for these two devices.But we have a great news as the unofficial Nitrogen OS 8.1 ROM is available For both OnePlus 3 and 3T.


The Nitrogen OS 8.1 ROM for OnePlus 3/3T is not a official ROM but an unofficial build.The ROM is in its beta stage which means there will be bugs present but these bugs will be fixed in coming updates.We don’t recommend users to use this ROM as a daily driver.

DISCLAIMER wont be responsible for any damage happened to your device(s) while following this guide, Proceed at your own risk.


  • This ROM is only for OnePlus 3 and One Plus 3T
  • Your device must be rooted and must have TWRP Recovery Installed.If not follow the guide linked below
  • We recommend to take complete backup and proceed.Follow the linked guide to take a full nandroid backup via TWRP recovery
  • Maintain 50-60% battery to prevent sudden shutdown between the process.

Download Nitrogen OS 8.1 ROM For OnePlus 3/3T

Download unofficial Nitrogen OS 8.1 Official Nitrogen OS 8.0

How To Install Android 8.1 Oreo On OnePlus 3/3T With Nitrogen OS 8.1 ROM

Android 8.1 Oreo On OnePlus 3/3T With Nitrogen OS 8.1 ROM

Step 1 Make Sure Your Device is rooted and you have custom recovery installed in it.

Step 2 Now Download the ROM and Gapps File.Save them to sd card

Step 3 Boot your device into recovery mode.

Step 4 Now follow the guide to flash Nitrogen OS 8.1 ROM On OnePlus 3/3T

 How To Install A Custom ROM Via Recovery On Any Android

Step 5 After flashing the ROM, flash the Gapps (Similar way)

Step 6 Now clear cache and reboot your device.Done!!!

Your OnePlus 3/OnePlus 3T Should boot into Nitrogen OS 8.1 ROM (Android 8.1).If you have any question related to this post, feel free to leave that in the comment section down below:)

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Rootmygalaxy a.k.a RMG is one of the biggest Android Guide websites which has been serving for last 4 years. The site gets avg. 1.5 million views per month These Posts are done by RMG Team Members.

LineageOS 15.1 (Android 8.1 Oreo) Is now available for many devicesDownload Now

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