Install OxygenOS 3.1.0 Marshmallow on OnePlus One via ported ROM brought an amazing news for the users of OnePlus One, now you can easily install Android 6.0.1 Marshmallow via OxygenOS 3.1.0 ported ROM on your OnePlus One. The OxygenOS 3.1.0 was previously released for OnePlus X but a developer at XDA has modified the firmware and successfully ported it on OnePlus One, another good news is that it contains all the latest features of Stock Marshmallow firmware released by OnePlus.

Note: The Android 6.0.1 Marshmallow ROM for OnePlus One is currently in the testing stages and you may experience some bugs but most of the features are seems to be working fine. You can visit the XDA page for more information about the ROM but if you are interested to install Android 6.0.1 Marshmallow ROM on your OnePlus One then just go ahead and follow the below description.

How to install Android 6.0.1 Marshmallow OxygenOS 3.1.0 on OnePlus One

Before you Begin:

Disclaimer: This tutorial includes multiple operations including Custom Rom, custom recovery etc. Follow the guide on your own risk, we are not responsible if you brick or damage your device however the chances of bricking a device are rare but you have to pay full attention on the complete guide to avoid any issues and difficulties while performing any of the above mentioned operation.


  • Please ensure your phone battery should be charged at minimum 80%
  • Download OnePlus One USB drivers
  • Your device should have a working TWRP or visit  on your device.

Necessary downloads:

Process to install Android 6.0.1 Marshmallow OxygenOS 3.1.0 on OnePlus One

Connect your device to your PC and copy the both ROM and google apps zip files onto your device storage.

Turn of your device and boot into TWRP custom Recovery menu by the hardware keys combination or using any third party app (Mostly found in Play store).

Once your device enters into TWRP recovery, create a Nandroid backup of your device or follow our guide to create a Nandroid backup (this will create a backup of your complete device including current firmware) if something goes wrong you can restore your previous firmware.

Once the Nandroid process completes, tap on “Wipe” and then swipe the slider from left to right to begin the wipe process (This will reset your device to factory)

Now it’s the time to flash the Marshmallow firmware on your device. Choose install and navigate to the folder in which you have copied the Marshmallow zip file

Swipe across the slider to confirm install, wait for a few minutes till the file is completely installed in your device.

Wait for the installation process to complete.

Once completed Reboot your device.

If your device is taking longer then 7-10 minutes then follow this guide to to fix this issue

That’s it! You have successfully installed Android 6.0.1 Marshmallow via OxygenOS 3.1.0 ported ROM on OnePlus One. If you have any query feel free to contact us by posting your queries in the below provided comment section. Follow us on Facebook/Twitter/Google+ for future update.

A Software Engineer who loves to hang around latest gadgets and writes his own experiences to get the best possible and accurate information.
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