After being critical of OnePlus’s recent update track record, OxygenOS has now started rolling out for the OnePlus 9 and 9 Pro with the latest April 2021 security patch in tow.

Although we’re now well into April, it’s still good to see the OnePlus 9 series get updated to the latest patch. If OnePlus can just start to bump the rest of its hardware to the same monthly patch, it would be harder to level criticism. That said, the update has not yet officially been confirmed. OxygenOS has though been spotted rolling out by early adopters over on the OnePlus ForumsUpdate: now officially confirmed by OnePlus.

It’s a fairly sizeable update with those sharing screenshots showing a 350MB update package with plenty of fixes and tweaks for common issues people are encountering with the latest OnePlus 9 devices. Most notable besides the April patch are yet more camera tweaks. OxygenOS includes some white balance adjustments, which tones down the over-sharpening, and includes what OnePlus calls “image purity and ambiance” performance.

We guess we’ll just have to wait until the update is more widely available before we can confirm if there are any major camera performance improvements with the OTA. You can check out the full changelog below if you want the full lowdown:

OxygenOS for OnePlus 9 and 9 Pro update changelog

  • System
    • Improved charging stability
    • Improved the sensitivity of the keyboard in the edge area
    • Improved the temperature control strategy
    • Fixed the issue that the battery icon in the status bar is abnormally displayed
    • Fixed the small probability issue that Google Fi SIM card can not accept incoming calls
    • Fixed known issues and improved system stability
    • Updated Android security patch to 2021.04
    • Updated GMS package to 2021.03
  • Camera
    • Improved the image purity and the ambiance performance
    • Improved the white balance consistency of the rear camera
    • Improved image over-sharpening of the rear camera

As we have mentioned, OnePlus has not yet officially confirmed the OxygenOS update, but we’re sure an announcement post will be coming very soon — likely in the next few days. We’re not actually sure if the OTA file is yet available to sideload via Oxygen Updater, but it might be worthwhile checking manually.

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Damien Wilde

Damien is a UK-based video producer for 9to5Google. Find him on Twitter: @iamdamienwilde. Email: