Update OnePlus 2 to Android 6.0 Marshmallow through Oxygen 3.0 ROM

Oneplus fans, its time to cheer up. The most awaited update is now official. You can now update OnePlus 2 to Android 6.0 Marshmallow through official Oxygen 3.0 ROM. OnePlus has not yet announced or released the OTA update for the devices.

Though it is not an OTA update, you can flash it manually. If you cannot wait for OTA update and wish to risk, you can flash Oxygen 3.0 ROM manually on OnePlus 2. If you are ready to update OnePlus 2 to Android 6.0 Marshmallow, do follow the below prerequisites to safeguard your personal data and to ensure successful installation.


Check Device Model Number

It is vital to check device model number before rooting/unlocking/flashing process to ensure flashing compatible files on the device. The device model name should be Oneplus 2. If your device model number doesn’t match with mentioned one, do not attempt the tutorial.

OnePlus Two USB Drivers

To transfer firmware packages, it is to be connected with PC. If your PC fails to detect the device, PC should be installed with OnePlus USB drivers. If you’ve not installed previously, download them form below source and install manually.

OnePlus USB Drivers

 For Mac users, you can install Android file transfer to transfer installation packages.

Steps To Be Considered

  • Enable USB debugging on the OnePlus Two which lets the device establish a stable connection with computer via USB. You can do it by following the below mentioned path. In latest versions of Android, the Enable Debugging option will be hidden in depth of settings panel. You can follow our guide to enable USB debugging.
  • Rooting the device erase entire data on the device including internal SD card. So, make sure you create a backup of entire important data. If you are not familiar with Android backup process, you can refer our guide to Backup Android phone data.
  • Make sure the phone’s battery is at least 60% charged at the start up of tutorial. If battery runs off during unlocking process, it may turn your phone into brick. So, charge the device before tutorial.

Are you sure you completed all the above steps? Yes, you can now get started with the Marshmallow installation process.


Oxygen 3.0 ROM

Guide to update OnePlus 2 to Android 6.0 Marshmallow through Oxygen 3.0 ROM

Disclaimer: Rooting/Unlocking/Installing custom ROMs and Kernels are not official methods. So, neither device manufacturer nor Droid Word team is responsible if anything goes wrong with your device during the process. This article is only for educational purpose. You can continue with the implementation at your own risk.

Update OnePlus 2 to Android 6.0 Marshmallow through Oxygen 3.0 ROM


Step 1: Download the Oxygen 3.0 ROM package from downloads section to your PC.

Step 2: Connect the OnePlus 2 to PC using a USB cable.

Step 3: Copy the downloaded installation package to the Phone’s memory(Use Android file transfer for Mac users).

Step 4: Once the zip file is copied, disconnect the USB and reboot the OnePlus 2 to recovery mode. This can be done by following the simple step below

Turn off the device and turn it on back while holding Power+Volume down buttons together.

Step 5: Now choose install from SD from available options, navigate to the previously copied zip and click Install to confirm.

That’s it! Do not interrupt the installation process. Your OnePlus 2 now reboots running Oxygen 3.0 Android 6.0 Marshmallow operating system.

If you got stuck between any of the above mentioned steps, do let us know through the comments section. We may help you out.  

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