
OnePlus has started gradually releasing (incremental rollout) a new software update, OxygenOS 15.0.0.1604, for the OnePlus Nord CE3 5G device. The update is currently being rolled out in batches in the India (IN) region. This means some users will receive the update today, followed by a larger rollout over the next few days. So, it’s normal if you don’t see the update on your phone immediately.
OxygenOS 15.0.0.1604 Update Features
If your device is from the India region, the build number for the update will be:
CPH2569_15.0.0.1604(EX01)
What changes does this update bring?

- According to OnePlus’s official changelog, this is primarily a security-focused update.
- The February 2026 Android security patch has been integrated to further strengthen system security.
Such updates usually don’t include many new “features.” However, they are important in terms of security and system stability – especially for those who use online banking, UPI, or make payments through various apps.
How to check for the update?
To check if the update is available, follow these steps:
Settings → About device → OxygenOS → Check for updates
Since this is a batch rollout, if you don’t receive it today, it’s best to check again after 24–72 hours. Keeping a few simple things in mind before updating can help avoid problems:
- Back up important files, photos, or chats.
- Keep the battery at 40–50% or higher (or update while charging).
- Ensure you have some free storage space on your phone.
- It’s normal for the phone to get slightly warm or the battery to drain a little faster for 1–2 days after the update, as background optimization may be running.
How to report issues? (India users)
The reporting process has now been made easier for OnePlus India users. OnePlus Community App → Profile → Bug Report. Or dial *#800# (this will open the feedback tool). If you notice any problems after the update, you can report them directly using these options.
OnePlus Nord CE3 5G OxygenOS 15.0.0.1604 Update
Although the OxygenOS 15.0.0.1604 update for the Nord CE3 5G is not a major feature update, it is important from a security perspective as it includes the February 2026 security patch. If you receive an update notification on your phone, you can install it without hesitation. And if you notice any problems, the best way is to send feedback using the reporting options mentioned above.
Also Read: OneUI 8.5 Update Soon: What Feature seen and which Samsung device get this?