Update: Open Beta 24/15 update for OnePlus 3/3T now available for download. Google recently released the Android 8.0 Oreo based firmware update for the stunning Pixel and Nexus series. last month with August Security Patch level. The September 2017 security patch is due with only the security bulletin at hand. Other manufacturers like Sony have aready compiled the September update for some of its premium devices like Xperia X. Now, OnePlus is testing the upcoming Open Beta 25 and Beta 16 based on Oxygen OS Android 8.0.0 Oreo for OnePlus 3 and 3T respectively.

OnePlus is reportedly rolling out the Oxygen OS closed beta to some of the testers. This means the Open Beta 25 could most likely possess the Android 8.0 Oreo. The OTA update will most likely roll out by mid-September or as soon as the end of the month. You may also expect the parallel HydrogenOS H2OS firmware update for its public beta 21/15 even before the Oxygen OS update. So stay tuned for you will be the first to hear it from us.

One of the OnePlus 3 closed beta tester have shared some screenshots and pics of the device running the Android 8.0.0 Oreo firmware. If everything goes right, OnePlus will be the first company to release Oreo.

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Here are some images:

OnePlus 3-3T Android 8.0 Oreo Oxygen OS closed beta screenshot

Here is the image of Android 8.0.0 Oreo official Oxygen OS update running on OnePlus 3 device.

OnePlus 3-3T Android 8.0 Oreo Oxygen OS closed beta screenshot1

The manufacturer is in a hurry because once the OnePlus 3 devices have successfully been updated to Android Oreo, OnePlus may move onto releasing the Open Beta for OnePlus 5. Oreo will be the last update OnePlus 3 will ever see. However, the phones will keep receiving the latest Security Patch updates. The official stable Oxygen OS 5.0 is due for another two months. Hence, OnePlus 5 Open Beta program will start then.

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