The OnePlus 9 & 9 Pro were released on March 2021, and received its first Open Beta (with OxygenOS 12 branding) on 5th October 2021. Now, a little over a month later, Open Beta 2 is also out. Here's the changelog:
Open Beta 2 changelog
There are also known issues in this build, which we have reproduced below for your convenience:
Note: this is beta software and it may contain bugs not specified in the "known issues" list above. If you're installing this update, you accept all associated risks. Furthermore, you're expected to report bugs to OnePlus directly (for Indian users: dial *#800# in the stock dialer; for all other regions: use the Community app). Also, switching back to stable at any point will most likely require a full data wipe, so don't get excited and jump into OB2 without considering all its pros and cons.
Which devices support Open Beta 2?
- OnePlus 9 & 9 Pro (all variants except carrier-branded, e.g. TMO)
How can I install OB2?
This is meant only for 9 & 9 Pro devices — it WILL NOT WORK for other devices. Since this is a beta update, make sure to backup all important data before your proceed as it may not be stable!
Before installing, please ensure your battery level is at least 30% and you have at least 3GB space left on your device. If you encounter any bugs in OB2, make sure you report them to OnePlus directly.
You can install the beta using our app itself: close this article, open the app's settings, and enable "Advanced mode".
- If you're already on Open Beta 1, select the "Open Beta (incremental)" update method. Go back to the main screen of the app, and you'll be able to download the incremental ZIP that'll take you from OB1 -> OB2. Note that if you're rooted, you'll need to unroot first, because there's no full ZIP available (and probably won't be for quite some time). You can check the forum thread for more information.
- If you're currently on the stable track (i.e. 126.96.36.199), then you need to install OB1 first. You can't directly install OB2 from stable, since there's no full ZIP available. Read our OB1 article for instructions.
Can I revert to the stable version of OxygenOS?
Yes, read our Open Beta 1 article carefully (especially red-coloured text), they contain all the required rollback instructions.