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Here’s the crux of the article in video form:

Original story (published on May 19, 2021) follows:

At Google I/O 2021, the search-engine tech giant officially introduced Android 12 to the world, albeit one of the very first publicly available builds.

This effectively marked the beginning of more active development from all major Android OEMs with the release of the Android 12 Developer Preview 1.

OP-9-Pro
OnePlus 9 Pro

Among the devices listed to take part in this program are two OnePlus devices, the OnePlus 9 and OnePlus 9 Pro.

And with the rollout of Android 12 Developer Preview 1, it is a race of finding and fixing bugs that should culminate in the release of stable Android 12-based OxygenOS 12 sometimes in fall (if last year is anything to go by).

As has been customary, we’re going to keep an eye out for these bugs and issues and follow them to their conclusion (read workarounds and bug-fix updates).

android-12-logo-hero

Usually, we hold off from pointing out bugs and issues with various builds until the update gets to the public beta phases but OnePlus might have dropped the ball already.

A section of users is noting issues being unable to set up their OnePlus 9 and OnePlus 9 Pro devices following this update to OxygenOS 12 Developer Preview 1.

According to them, the setup process gets stuck, leaving them with soft-bricked devices. A suggested fix involves reflashing OxygenOS 11, unlocking the bootloader, and toggling OEM unlock. This disables Factory Reset Protection (FRP).

OnePlus has since moved quickly to pull the download links from its community forum and you can read more on this in our coverage of the same here.

removed links oneplus 9 android 12

We shall continue to keep an eye on these OxygenOS 12 issues and report new ones as and when they become apparent, along with an analysis of their current status.

For a look at some of the bugs and issues afflicting users of various OnePlus devices currently running Android 11-based OxygenOS 11 and their current status, check out our dedicated tracker of the same.

Click/tap to view older updates

Update 1 (June 03)

IST 06:00 pm: A new Android 12 Developer Preview build with a hotfix for an issue where the system gets stuck during the Factory Reset Protection (FRP) check is now out for the OnePlus 9 and OnePlus 9 Pro.

Here’s the list of known issues for the same:

Known Issues
– All data will be cleared while flashing the build
– Video call function is not available
– Fingerprint unlock and face unlock are unavailable
– Certain UI screens look less than desirable
– Some apps may not function as expected
– System stability issues
– Probability of camera crash when HDR mode enabled.
Source

Update 2 (October 05)

IST 08:50 am: Soon after Google announced the availability of Android 12 in AOSP, OnePlus kick-started the OxygenOS 12 open beta program for the 9 and 9 Pro.

The new update brings a host of new features, however, as expected, there are a few known issues too. Check them out below:

1. Some third-party apps haven’t been adapted to the latest Android version and may not function properly
2. Camera might be stuck and unstable sometimes
3. Texts and calls might not be able to be received
4. Bluetooth earphones may fail to connect and play music
5. Information about the CPU is incorrectly displayed
6. Buttons in Gallery might not function properly
7. Screen recordings may not be saved in some instances

Update 3 (November 16)

IST 11:06 am: OnePlus is now pushing out the Android 12-based OxygenOS 12 Open Beta 2 to the OnePlus 9 and OnePlus 9 Pro. Here’s the update’s changelog.

System
– Optimized the fluency of the status bar
– Optimized battery life and charging speed
– Fixed the low-probability issue of the status bar not displaying apps
– Fixed the low-probability issue of automatic brightness failing
– Fixed the issue of some desktop widgets displaying abnormally
– Fixed the issue of Cloud service not opening in Notes
– Updated Android Security Patch to 2021.11
– Improved system stability

Camera
– Improved app stability

Bluetooth
– Fixed the low-probability issue of the status bar not displaying the battery of Bluetooth earphones
Source

Some of the known issues include:

– Auto-rotate for desktop may be delayed under some using scenes
– Probable issue of WLAN automatically disconnected
– The camera will freeze when taking videos in 4K 60hz mode
– Notifications for some apps will automatically be switched on
– Global Search may not response
– Background Apps may automatically switch off under the using scene of low RAM

Update 4 (December 08)

IST 05:46 pm: The stable OxygenOS 12 update is out for the OnePlus 9 and 9 Pro but many users seem to have taken an instant dislike to the ColorOS 12 skin that has overtaken the previous minimal OxygenOS UI fans loved.

Apart from that, the update even brings a boatload of bugs and issues that left some users wondering if the company mistakenly rolled out a beta build rather than the stable version, as highlighted by a report.

The new skin does not allow users to change icons individually, customize the status bar, or even disable the Google Discover feed. Further, the Phone app can only be accessed via the homescreen or the Play Store.

Another bug that was noticed is that you can no longer kill all the running apps by tapping the ‘Close all’ button on the recent screen as the current app remains active.

Update 5 (December 09)

IST 06:30 pm: It looks like after updating their devices to OxygenOS 12, the About Phone section one OnePlus 9 and OnePlus 9 Pro is showing incorrect CPU information. The phone shows that it is powered by the Qualcomm Snapdragon 855 instead of Snapdragon 888.

Update 6 (December 10)

IST 06:00 pm: It seems that factory resetting your OnePlus 9 and 9 Pro after installing the latest OxygenOS 12 update may get rid of some of the performance issues and bugs as highlighted by a report.

It’s possible that the new ColorOS base conflicts with some remnants of OxygenOS 11 which caused the various issues. So we’d suggest giving it a shot to see if it offers an improved experience. But this does not excuse the company for rolling out half-baked software.

Update 7 (December 11)

IST 02:00 pm: OnePlus is reportedly jamming the breaks on the OxygenOS 12 stable update rollout for the OnePlus 9 and 9 Pro due to the various bugs and issues.

The company says it will release an improved build sometime soon. That said, we hope the upcoming build addresses most of the issues users have been facing with OxygenOS 12.

Update 8 (December 13)

IST 10:21 am: OnePlus is reportedly blocking access to the auxiliary Google cameras (wide, macro, telephoto) on the latest Android 12-based OxygenOS 12.

And if you still want to use GCam with all sensors working, you don’t have any choice than not to install OxygenOS 12. More on that here.

Update 9 (December 14)

IST 05:05 pm: In case you aren’t a big fan of the new Android 12-based OxygenOS 12 update that rolled out for the OnePlus 9 and 9 Pro, then here’s a detailed guide on how to rollback to OxygenOS 11 based on Android 11.

Update 9 (December 14)

IST 10:36 am: OnePlus is now rolling out a new stable update for OnePlus 9 and 9 Pro. This update aims to brings improvements and several bug fixes.

It fixes the screen tearing issue when coming back to the home screen from games. It also fixes an issue where the notification bar shows a blank bar. And lastly, the issues with mobile data connectivity is also fixed.

Update 10 (December 21)

IST 10:54 am: OnePlus has just promised to restore auxiliary camera access on OxygenOS 12 for OnePlus 9 series. This will aid in the Google Camera mods.

Update 11 (December 30)

IST 06:59 pm: OnePlus 9 and 9 Pro are grabbing new OxygenOS 12 update identified with version C.40. This software update brings fixes for 5G connectivity and system upgrade failure issue.

Update 12 (January 4, 2022)

IST 06:59 pm: Many OnePlus users say they are experiencing battery drain issues even when the device is in standby. More on that here.

Update 13 (January 21, 2022)

IST 05:00 pm: Those who updated to OxygenOS 12 are reporting that they are getting a ‘Unsupported Device’ error when using the Oxygen Updater app. More on that here.

Update 14 (January 27, 2022)

IST 05:00 pm: OnePlus 9 users who updated to OxygenOS 12 are reporting that the Google Phone app is not working for them. Head here to know how to restore it.

Update 15 (February 19, 2022)

IST 05:52 pm: Some OnePlus 9 and 9 Pro users are facing screen flickering or horizontal lines on screen issue on OxygenOS 12 (Android 12). There are a couple of worakrouds that could help.

Update 16 (February 25, 2022)

12:59 pm (IST): OnePlus released the stable ColorOS 12 update for OnePlus 9R in China. The company also mentioned that this update carries a bug that causes the lock screen to flash when you unlock it with numerous notifications.

Currently, the only fix for this issue is to clear the notifications. Also, it’s worth mentioning that this isn’t a public release and it’s only a stable build. This means only those users who want to try it can install it.

Update 17 (March 29, 2022)

12:00 pm (IST): OnePlus 8 series users who recently updated to OxygenOS 12 are reporting several issues. If you are interested in rolling back your device to Android 11, head here to know more.

Update 18 (April 7, 2022)

11:16 am (IST): Auto90 app on OnePlus 7 Pro will now let users force 90 Hz refresh rate on a per-app basis. However, the app won’t work if your device is running a custom ROM. More on that here.

Also, it appears that the AutoHz app no longer works on the OxygenOS 12. Previously, users were able to adjust the refresh rate across the board or on a per-app basis. But after upgrading to the latest version, the app does not work.

Update 19 (April 25, 2022)

05:26 pm (IST): OnePlus 8, 8 Pro, 8T, and OnePlus 9R are now receiving a new OxygenOS 12 build that comes with version C.16. It includes battery life improvements.

System
– [Optimized] the power consumption in some scenarios, improved battery life performance (Source)

Update 20 (December 23, 2022)

07:19 pm (IST): Several OnePlus 7 and 7 Pro users are facing various issues with their devices after updating to Android 12. More on that here.

Update 21 (April 03, 2023)

05:25 pm (IST): Several OnePlus 7T owners claim that the OxygenOS 12 update has broken the Dual-SIM functionality. More on that here.

NOTE: The table below will be updated continuously to reflect the latest developments.

Bug/Issue description OxygenOS 12 version Device(s) affected Status
Soft-brick on installing DP1 Developer Preview 1 OnePlus 9, OnePlus 9 Pro Known issue, fix coming soon
All data will be cleared while flashing the build New Developer Preview OnePlus 9, OnePlus 9 Pro Known issue
Video call function is not available New Developer Preview OnePlus 9, OnePlus 9 Pro Known issue
Fingerprint unlock and face unlock are unavailable New Developer Preview OnePlus 9, OnePlus 9 Pro Known issue
Certain UI screens look less than desirable New Developer Preview OnePlus 9, OnePlus 9 Pro Known issue
Bug/Issue description OxygenOS 12 version Device(s) affected Status
Some apps may not function as expected New Developer Preview OnePlus 9, OnePlus 9 Pro Known issue
System stability issues New Developer Preview OnePlus 9, OnePlus 9 Pro Known issue
Probability of camera crash when HDR mode enabled New Developer Preview OnePlus 9, OnePlus 9 Pro Known issue
Camera freezing or unstable Open beta 1 OnePlus 9, OnePlus 9 Pro Known issue
Texts and calls might not be able to be received Open beta 1 OnePlus 9, OnePlus 9 Pro Known issue
Bug/Issue description OxygenOS 12 version Device(s) affected Status
Bluetooth earphones may fail to connect and play music Open beta 1 OnePlus 9, OnePlus 9 Pro Known issue
Information about the CPU is incorrectly displayed Open beta 1 OnePlus 9, OnePlus 9 Pro Known issue
Buttons in Gallery might not function properly Open beta 1 OnePlus 9, OnePlus 9 Pro Known issue
Screen recordings may not be saved in some instances Open beta 1 OnePlus 9, OnePlus 9 Pro Known issue
Auto-rotate for desktop may be delayed under some using scenes Open Beta 2 OnePlus 9, OnePlus 9 Pro Known issue
Bug/Issue description OxygenOS 12 version Device(s) affected Status
Probable issue of WLAN automatically disconnected Open Beta 2 OnePlus 9, OnePlus 9 Pro Known issue
The camera will freeze when taking videos in 4K 60hz mode Open Beta 2 OnePlus 9, OnePlus 9 Pro Known issue
Notifications for some apps will automatically be switched on Open Beta 2 OnePlus 9, OnePlus 9 Pro Known issue
Global Search may not response Open Beta 2 OnePlus 9, OnePlus 9 Pro Known issue
Background Apps may automatically switch off under the using scene of low RAM Open Beta 2 OnePlus 9, OnePlus 9 Pro Known issue
Bug/Issue description OxygenOS 12 version Device(s) affected Status
Tapping ‘Close all’ does not close the current app via the recents screen Stable OnePlus 9, OnePlus 9 Pro Unacknowledged
Phone app can only be accessed via Homescreen or Play Store Stable OnePlus 9, OnePlus 9 Pro Unacknowledged
Google Discover feed cannot be disabled Stable OnePlus 9, OnePlus 9 Pro Unacknowledged
About Phone section shows incorrect CPU information Stable OnePlus 9, OnePlus 9 Pro Unacknowledged
Auxiliary sensors limited for Google Camera mods Stable All devices Fix coming
Bug/Issue description OxygenOS 12 version Device(s) affected Status
Screen tearing in some game when going back to home screen Stable OnePlus 9, OnePlus 9 Pro Fixed
Notification bar shows a blank bar Stable OnePlus 9, OnePlus 9 Pro Fixed
Mobile data connectivity issue Stable OnePlus 9, OnePlus 9 Pro Fixed
Unable to access 5G network Stable OnePlus 9, OnePlus 9 Pro Fixed
System upgrade failure issue Stable OnePlus 9, OnePlus 9 Pro Fixed
Bug/Issue description OxygenOS 12 version Device(s) affected Status
Battery draining in standby mode Stable OnePlus 9, OnePlus 9 Pro Fixed
Unsupported device error when using Oxygen Updater app Stable All devices Acknowledged
Google Phone app not working Stable OnePlus 9 Workaround
Screen flickering or horizontal lines Stable OnePlus 9/9 Pro Workaround
Lock screen flashes while unlocking with large number of notifications Stable ColorOS 12 OnePlus 9R Known issue
Bug/Issue description OxygenOS 12 version Device(s) affected Status
Too many bugs and issues after Android 12 update Stable OnePlus 8 series Rollback Guide
AutoHz app not working Stable All devices Reported
Various bugs & issues after updating to Android 12 Stable OnePlus 7/7 Pro Unacknowledged
Dual-SIM functionality has broken after updating to Android 12 Stable OnePlus 7T Unacknowledged

NOTE: You might also want to check out our OnePlus Android 12 (OxygenOS 12) update tracker.

PiunikaWeb started as purely an investigative tech journalism website with main focus on ‘breaking’ or ‘exclusive’ news. In no time, our stories got picked up by the likes of Forbes, Foxnews, Gizmodo, TechCrunch, Engadget, The Verge, Macrumors, and many others. Want to know more about us? Head here.

Clinton Madegwa
1118 Posts

A cybernaut grasping at all things tech. Lover of Android, Linux, and custom ROMS. A nerd, a writer, an avid reader.

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