Download & Install CM13 Marshmallow ROM On OnePlus 3

Guide: How to Download and Install CM13 Marshmallow ROM On OnePlus 3 (Homemade unofficial CyanogenMod 13 Custom ROM)

OnePlus 3 was released a few days back and the great news is that the developers have started working on this device.Now there is an unofficial CyanogenMod 13 Android Marshmallow 6.0.1 available for the device.Very special thanks to XDA Recognized Developer Grarak for releasing an Unofficial CM13 ROM for OnePlus 3.

He has also released TWRP for OnePlus 3 and we have already posted an article on How to Install TWRP Recovery & Root OnePlus 3.As you guys know OnePlus 3 comes with OxygenOS which is very fast, clean and customizable skin.But when it comes to features no ROM can beat CyanogenMod.And now you can install CM13 Marshmallow ROM On OnePlus 3.

This ROM is not developed by team CM but based on their CM 13 source code and latest Android 6.0.1 Marshmallow.It is a very clean ROM and features rich Custom ROM.You will also get the DOZE Mode resulting in good battery life.We will be sharing Full step by step guide to Flash / Install CM13 Marshmallow ROM On OnePlus 3 Android Marshmallow 6.0.1 (Unofficial )

Supported Devices: This guide is only for OnePlus 3.So don’t try on other Devices


  • Make sure there is at least 80% battery left on your smartphone before begin.
  • Only follow if you know what you are doing

WARNING: will not be held responsible for any kind of damage occurred to your OnePlus 3 while following this tutorial.Do it at your own risk.


→ Safely Flash CM13 Marshmallow ROM On OnePlus 3


CM13 Marshmallow ROM For OnePlus 3→  Download Link Development Page

└download the latest built according to date

How to Flash / Install CM13 Marshmallow ROM On OnePlus 3 (UNOFFICIAL )

Step By Step Guide

Install Unofficial CM13 Marshmallow ROM On OnePlus 3

*First read Pre-Requirement section carefully, then follow the given steps to Flash Unofficial CM13 Marshmallow ROM On OnePlus 3

→ If you want to enable root access on CyanogenMod 13 then follow this guide  How to Enable Root Access on CM13

If you have any questions related to this post feel free to ask in the comment section.

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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.

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