[OnePlus 9RT too] OxygenOS update C.20 for OnePlus 8T brings May 2022 Security Patch

Last week on Thursday we shared that the OnePlus 8 and the OnePlus 8 Pro are getting an incremental OxygenOS C.20 update. We also mentioned that it might be rolling out to the OnePlus 8T as well but we didn’t have enough information at that time. As per some users, the OxygenOS C.20 update is now rolling out to OnePlus 8T. Let’s find out more about this update.

Update: OnePlus 9RT is also getting the OxygenOS C.20 update with the same changelog.

OnePlus 8T received its last update C.17 two weeks back along with the OnePlus 8 series. Recently, OnePlus started rolling out updates with the May 2022 security patch. And with this update, OnePlus 8T might be getting the same as well. We don’t have the official changelog yet.

C.20 update for OnePlus 8T

The new incremental update for OnePlus 8T comes with build C.20. And currently, it is available in India. The update is based on OxygenOS 12.1. Although it is an incremental update it weighs more than a GB so make sure to download the update using WiFi.

Talking about new features, the same features are expected that are pushed to the OnePlus 8 series with the C.20 update. Below you can check the changelog of the C.20 update for OnePlus 8 series.

OnePlus 8T C.20 Update Changelog


  • [Improved] system stability
  • [Updated] Android security patch to 2022.05

If you are a OnePlus 8T user in India then you should receive the C.20 update soon. The OTA update is rolling out in batches and so it can take a few days to reach every eligible OnePlus 8T. You can also check the update manually by going to Settings > About Phone > Software Update. Click on check for update. And once the update is available click on Download and Install.

You can also do a local upgrade but for that, you will need C.20 OTA zip and also the local updater app for your phone.

Before upgrading to the latest version, make sure to take a backup of your data and also charge your phone to at least 50%.

You May Also Like – Download Google Camera 8.0 for OnePlus 8T

If you’ve any queries, then you can leave a comment in the comment section. Also, share this article with your friends.

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Ashutosh singh

Computer Science graduate and tech enthusiast. Love testing new tech gadgets ever since my first windows phone from Samsung. Working as a technical writer for more than five years, and I believe I have also developed good SEO skills. In my spare time, I like watching movies, and playing games.

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