OnePlus released OxygenOS 1200 based on Android 13 Public beta update for OnePlus 9RT, which launched ColorOS 
based on Android 11 last October . It’s currently seeding in India, and in addition to some optimizations, improvements, and new features, it brings an Aquamorphic design to the 9RT.
If you are interested in trying it out, please make sure your 9RT is running the latest OxygenOS 13 version (C.07) before installing the update. It should also have at least 30% battery and 5.5GB of free storage.
However, it’s worth noting that beta versions are generally less stable than official versions and often contain bugs that hinder the user experience, so it’s best to avoid them on major devices. OxygenOS 13 Open Beta for 9RT, the eye protection mode cannot be turned on in certain scenarios. After switching the system dynamic wallpaper, the lock screen time is not displayed properly.
You can check the changelog of OxygenOS 13 Open Beta for OnePlus 9RT below for more details , and head to the source link at the end of this article to learn more about its installation process.
Android 13-based OxygenOS 13 OnePlus 9RT Open Beta
Resources
