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Install OxygenOS Open beta 16 OS on OnePlus 3T and Update to Android 8.0 Oreo

The OnePlus Open Beta program is ready to offer the Android 8.0 Oreo OTA for selected OnePlus 3 and OnePlus 3T users. If you signed in for the Open Beta then you should receive your Oreo update during the following days in form of a new OTA. However, a manual installation process is also available so you can choose to flash the OxygenOS Open beta 16 OS right away. Don’t worry, we will be showing you how to successfully complete this operation during the following guidelines.

OxygenOS Open beta 16 brings the Android 8.0 Oreo firmware for the OnePlus 3T before the actual official roll out. As the name suggests, you are dealing with a Beta Oreo build that’s offered by OnePlus for the OnePlus 3T users. Therefore, this update is not the final Android 8.0 system, but a firmware that’s still under development stage.

The goal is to get feedbacks from regular users and from devs so that a fully stable update can be finally released. However, this OxygenOS Open beta 16 software is stable enough for a daily use and you can flash it without problems on your own device. The problems that are still left are minor ones so overall, you will receive a smooth Android platform pre-loaded with everything that’s new in the Oreo system.

Therefore, this is the easiest way in which you can update your OnePlus 3T to stock Android 8.0 Oreo. Of course, the fully stable ROM will be also provided, but for that software you will still have to wait a little while.

Anyway, the OxygenOS Open beta 16 can be installed manually if you didn’t register to the OnePlus Open Beta program. All you have to do for updating your OnePlus 3T to Android 8.0 Oreo is to follow the steps from this tutorial. Of course, don’t forget about the other details that must be checked out first – only in that way you can succesfully perform the update operation.

This is going to be an official update opportunity. The OxygenOS Open beta 16 is provided by OnePlus thus you won’t be using a custom ROM firmware. As a conclusion, you won’t lose your phone’s warranty and you won’t risky anything else.

However, if you are using a tweaked device (for example if root access was ensured, if a custom recovery image was applied or if the bootloader was unlocked) now you will restore your smartphone back to its initial state; shortly, root access will be revoked as well as all the other tweaks that was previously applied.

A backup is optional but strongly recommended. During the update operation your personal files might get corrupted or wiped out. So, a good idea will be to secure your contacts, call logs, texts, images, videos, audio files, market apps, internet settings, calendar info, saved passwords, IMEI / NVRAM data and everything else you might require afterwards. A Nandroid backup should also be a good idea as maybe, after testing the OxygenOS Open beta 16 ROM you will want to go back to stock – and that’s possible if you first complete a Nandroid backup process.

This is a manual update operation. Obviously, a computer will be used for applying the Android 8.0 Oreo OxygenOS Open beta 16 firmware. Moreover, your OnePlus 3T and its USB cable should be there too because your devices must be connected at some point. For properly ensuring this connection you first have to check the USB Debugging feature on your phone – you can do that by accessing “menu – > settings – > developer options”. Hint: Developer Options can be enabled by tapping repeatedly on Built Number (tap on this field until you get the ‘you are a developer’ message).

One more thing: charge your OnePlus 3T or at least verify the power that’s left. If the power is lower than 50%, plug in the charger. If you skip this operation your phone can get switched off while you try to update to Android 8.0 Oreo. And if a sudden shut down occurs the Android system might get soft bricked.

Of course, use this tutorial only for the OnePlus 3T. If you own the OnePlus 3, use this step by step guide instead.

How to Install OxygenOS Open beta 16 OS on OnePlus 3T and Update to Android 8.0 Oreo

  1. Download the update package for your device from this page.
  2. Save the file on desktop and rename it into ‘update.zip’.
  3. Transfer the downloaded and renamed file inside the ADB installation folder.
  4. Switch off your OnePlus 3T and wait while the power off process is completed.
  5. Reboot recovery mode on your device.
  6. From recovery select Install from USB and select OK to confirm.
  7. Connect your OnePlus 3T with your computer with the help of your phone’s USB cable.
  8. From the ADB folder open a command prompt window: press and hold the Shift keyboard key while right clicking on any blank space and then select ‘open command prompt window here’.
  9. Now, in this cmd window enter adb sideload update.zip.
  10. Afterwards, close the cmd window, remove the USB cable and reboot your handset.

Good work. Now, after the last reboot you will be able to use the Android 8.0 Oreo firmware on your own OnePlus 3T. Therefore, start testing the OxygenOS Open beta 16 OS and try all the new features, apps and capabilities. If something will not run as you expected, don’t panic as all the problems will be soon addressed by the devs. However, use the comments field from below and share your experience and your observations with us and with the other users who are about to use this step by step guide. Enjoy.

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