How To Install OxygenOS 3.5.3 On OnePlus 3T

In this guide, you will be able to learn How To Download and Install OxygenOS 3.5.3 On OnePlus 3T : OnePlus has surprised us all by releasing an unexpected device later this year, and it indeed is the best Android device around for the price you pay. While the OnePlus 3T isn’t a successor to the OnePlus 3, it is good in many ways. It has the new Snapdragon 821 processor, 6 Gigs of RAM, a 16 MP front and primary camera, a bigger 3400 mAh battery, and much more. Something that OnePlus promised was a newer version of OxygenOS, bringing native apps and a lot more great features.

Well, seems like they have started rolling out the OTA updates. This is an incremental update, meaning that it will be relesed phase-wise, from region to region. Therefore, it might take a long time for it to go worldwide. If you just can’t wait to install the OTA update, then follow this official method which will do the same. If you think you don’t want to take any risks, then waiting for the OTA update is just fine. However, if you follow all the steps given with precision, you will be able to successfully install the latest version.

We have been able to extract the OTA update ZIP file. All you need to do is do a flash from the stock recovery and nothing more. Let’s have a look on How To Install OxygenOS 3.5.3 On OnePlus 3T.


  • Added emergency calling for India (triple press the power button to trigger)
  • Added motion detection in camera and enhanced image capturing quality
  • Added OnePlus community app
  • Updated touch panel firmware and optimized touch precision
  • Updated GPS library and optimized location accuracy
  • Redesigned clock UI
  • Redesigned calling UI
  • Increased stability and implemented various bug fixes

DISCLAIMER is not responsible for any hardware/software issues that occur to your device(s) by following this guide. We are certain that the following guide is carefully written, avoiding any mistakes on our side. If you are unsure of the causalities that may occur if the procedure goes wrong, then please don’t proceed.




OxygenOS 3.5.3 zip

How To Install OxygenOS 3.5.3 On OnePlus 3T

OxygenOS 3.5.3 On OnePlus 3T

  • Download the OxygenOS 3.5.3 Zip file  on the internal memory of your device file (download section)
  • Now reboot your OnePlus 3T into recovery mode.Guide  How To to Boot Into Recovery Mode On Android (Various Ways)
  • Once in recovery mode, Choose Install from ADB Sideload
  • Then connect your OP3T to your computer
  • Now open the command window from the ADB Folder.(Press Shift + Right click and open command window)

Open Command window from MFastboot folder

  • Check whether your device is connected properly or not. Issue the following command
adb devices

(If you can see your device’s details, then your device is properly connected and you are ready to flash the Firmware)

  • Issue the following command to start flashing OxygenOS 3.5.3 On OnePlus 3T
adb sideload File

(Example adb sideload

  • Once the process is completed, reboot your device
  • Done!! Your device should have the latest OxygenOS 3.5.3

If you have any queries, refer us in the comments section below!

Adnan Ahmed
Adnan Ahmed
An avid technology reader, author, and admirer, Adnan has been into all-things technology since age twelve. Since then, thanks to the exposure he has been brought into, Adnan now serves as an author on multiple sites including Rootmygalaxy,net.

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