H2OS Open Beta 21/15

Chinese smartphone ace OnePlus became a more consistent competitor in the market after the release of flagship OnePlus 5. But the concept of OnePlus 5 gradually came as an upgrade from the former flagships in OnePlus. You might have guessed we are speaking about OnePlus 3 and OnePlus 3T. Long before even there was a talk of OnePlus 5, OnePlus 3/3T were the most sought flagships with all the amazing specification at the price of a mid-range device. Still, it has its own loyal user base till date. OnePlus complements that user following by regularly dropping software updates for these former flagships. We have posted before about all the regular stable and beta updates OnePlus seeds for all its devices. Again in sync with that, OnePlus has officially released H2OS Open Beta 21/15 for OnePlus 3/3T respectively. This update is now available for download. The update weighs around 1.4 GB.

The H2OS Open Beta 21/15 update packs application upgrades, optimizations, bug fixes, browser application upgrade, and repairs. These new features are pretty much the same on both the device OnePlus 3/3T.  We have mentioned the changelog for both the devices OnePlus 3 and OnePlus 3T below. It is the official update log from OnePlus. We have also provided the direct download links to download the updates. Also, we have mentioned in detail how to install the update on the OnePlus 3/3T.

Unfortunately, this Beta update does not come with Android 8.0.0 Oreo that many new websites predicted. The good news is, OxygenOS Open Beta 24 and Open Beta 15 for OnePlus 3 and 3T respectively are coming as soon as next Monday, September 18, 2017. Though it won’t possess Oreo update either, but it sure is a fascinating bug fixes.

When is Android 8.0 Oreo coming to Oxygen OS?

As the next Oxygen Open Beta 24 or 15 may not come with Android Oreo, it is coming real soon. Could be the Open Beta 25 for OnePlus 3. As there are only 2 Beta updates every month, and this is the second one, the most likely date of Android oreo release for OnePLus 3 devices is October 1, 2017.

Changelog: H2OS Open Beta 21/15

The H2OS Open Beta 21/15 changelog features the similar changes and updates for both One Plus 3/3T. Here take a look at the official changelog.

– New “soft” color screen mode, you can select the color mode is more suitable for you
– deep cleansing logic optimization, eliminate desktop widgets been cleared

[a] plus account 
– Fixed occasional issue failed login

– browser application update to version 3.0.25
– fix other problems

H2OS Open Beta 21/15
The Official Update Log for H2OS Open Beta 21/15 for One Plus 3/3T

The new OS enables the user to choose a color mode, updates the Browser Application and fixes other bugs.


H2OS Open Beta 21/15
Latest One Plus 3 H2OS Open Beta 21
H2OS Open Beta 21/15
One Plus 3T Latest H2OS Open Beta 15

Download H2OS Open Beta 21/15 for OnePlus 3/3T

Here is the direct official download link for H2OS Open Beta full firmware for OnePlus 3 and One Plus 3T.

  • H2OS Open Beta 21 for Oneplus 3 | Download
  • H2OS Open Beta 15 for Oneplus 3T | Download

How To Install H2OS Open Beta 21/15 for OnePlus 3/3T

The beta version of OS does not rolls out regionally. So You can install the update manually by going into Your device’s available System updates. If it is available, download it and install the update to stock recovery.

Now to install the firmware update, follow the below link.

  Install Open Beta H2OS for One Plus 3/3T

Therefore, install the updates and enjoy the upgrades OnePlus has to offer for the One Plus 3/3T. And stay connected with us for more such latest updates on OnePlus.

Follow and Subscribe

AndroidSage Avatar

Leave a Reply