OnePlus Open gets OxygenOS 15.0.0.610 with custom watermarks, Nord 4 receives OxygenOS 15.0.0.601 with audio sync fix

OnePlus has started rolling out a new batch of updates for the OnePlus Open and OnePlus Nord 4 as March begins. Despite launching in March, both updates include the February 2025 security patch along with several bug fixes.

For the OnePlus Open, the update (version 15.0.0.610(EX01)) is now available in India and Europe. It introduces a personalized watermark feature in the camera app, allowing users to add custom signatures to their photos. The update also enhances system stability and performance while integrating the February 2025 Android security patch for improved security.

Meanwhile, the OnePlus Nord 4 is receiving version 15.0.0.601(EX01) in batches across India. This update focuses on system stability and performance enhancements while incorporating the February 2025 security patch. It also improves camera stability for a better photography experience and fixes an audio-video synchronization issue that affected video playback with Bluetooth headphones.

And yes, this is an incremental update, which is currently being rolled out in batches. So if you haven’t received it yet, you may get it soon. As for the whole rollout process, it may take around a week or two.