Download and Install OxygenOS 4.0.3 For OnePlus 3 – OTA, Full ROM
How To

Download and Install OxygenOS 4.0.3 For OnePlus 3 – OTA, Full ROM

Recently, Chinese manufacturer OnePlus started rolling out the latest Nougat-based OxygenOS 4.0.3 update for OnePlus 3, to users from China, over the air. Like usual, the update is being delivered over the air, so it should take a while until everybody receives it.

On the other side, there are a lot of users who don’t want to wait until they get the official notification, so we’ve put together a short guide on how to install OxygenOS 4.0.3 on OnePlus 3 manually, in just a few steps.


Please consider the following aspects before proceeding with installation, in order to avoid any issues:

  • This method works just for the OnePlus 3. Don’t try installing it on another device, since it won’t work.
  • The update won’t erase your data, but our recommendation is to perform a full backup before starting, for the safer side.
  • Make sure that the battery level is at least around 50-60%, otherwise you risk dealing with an accidental shutdown in-between process.
  • Please follow the instructions below carefully and make sure you don’t skip any of them!



Download OxygenOS 4.0.3 For OnePlus 3



Download OxygenOS 4.0.2 To OxygenOS 4.0.3 zip – Download, Mirror


Download OxygenOS 4.0.3 Full ROM For OnePlus 3 – Download

Above link has been Temporary removed..



Install OxygenOS 4.0.3 On OnePlus 3


Method 1

Step 1: Go to Settings > About phone and search for the Build Number. Tap on it 7 times, in order to enable Developer Options.

Step 2: From the Developer Options Menu, enable USB Debugging.

Step 3: Download the ADB and Fastboot driver and install it on your PC.

Step 4: Download OxygenOS 4.0.3 for OnePlus 3, and copy the ROM in the same folder where you have ADB installed.

Step 5: Turn off your phone and boot it into Recovery Mode.

Step 6: While in Recovery Mode, choose the Install from ADB Sideload option.

Step 7: Connect the phone to your PC.

Step 8: In the same folder where you have the Marshmallow ROM installed, press Shift + Right click, in order to open a command here. Type adb devices, in order to check your connection. If the phone is listed, you can start flashing.

Step 9: Type adb sideload File, in order to being the flashing process.

Step 10: Wait for about 10 minutes, until the process is completed.

Step 11: Reboot the phone.


Method 2


Step 1: Download  OxygenOS 4.0.3 OTA Zip for OnePlus 3, and save it on your phone’s internal memory.

Step 2: Boot the phone into Recovery Mode, by pressing and holding Power + Volume Down.

Step 3: Select the Apply Update option, then Choose from Internal Storage.

Step 4: Search for the OxygenOS 4.0.3. .zip file, downloaded earlier and tap on it. This will begin the installation process. Wait for around 10 minutes, until it’s completed.

Step 5: Reboot your phone.


And this is all it! You have successfully managed to install OxygenOS 4.0.3 on OnePlus 3. The process might seem a bit complicated at first, but if you follow all steps correctly, it should work just fine. However, it you have any questions or encounter issues, feel free to contact us, using the comments section below!

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