Notifications OnePlus

To check the operating system version on your OnePlus device, follow these steps:

1. Open Settings.
2. Scroll down and select “About Phone” or “Phone Information”.
3. Find the line “Android Version” — it will show the version of the installed OS.
4. Below that, you’ll usually see the firmware version: OxygenOS (or ColorOS for devices made for the Chinese market).

Important! Some OnePlus models may have their own system version with a slightly different interface, so the menu names may vary.

Go to System Settings → Battery → Battery Optimization → (three dots) → Advanced Optimization.

By default, two options are enabled:

• Deep Optimization (or Adaptive Battery). This is the main mechanism that closes background apps. If you need an app to keep running in the background, disable this option.
• Sleep Standby Optimization. OnePlus analyzes your sleep patterns and disables network connections during that time, which can block the delivery of push notifications.

Disable: System Settings → Battery → Battery Optimization → (three dots) → Advanced Optimization.

App Lock

Locking an app in the recent apps list can help prevent it from being force-closed in the background and from battery optimization settings being reset.

However, this is not a 100% safeguard — it’s a good idea to periodically check your system settings.

How to Lock an App:

1. Launch SingularityApp.
2. Open the list of recent apps (swipe up and hold).
3. Press and hold the SingularityApp window, then tap the “Lock” icon in the upper-right corner.
4. A closed lock icon will appear on the locked app.

Battery Optimization — What to Disable:

1. Open Settings → Apps.
2. Tap the gear icon (⚙️) → select “Special Access” → “Battery Optimization”.
3. Find SingularityApp and select “Don’t optimize”.

Important! On some OnePlus devices, this setting may occasionally reset, putting the app back into “Optimized” mode. To prevent this, pin SingularityApp in the recent apps list.

Also check: Settings → Battery → Battery Optimization → in the top-right corner, select “All Apps” → find SingularityApp → select “Don’t optimize”.

If you have a OnePlus 3 or older, you may need to disable the Doze mode in Developer Options.

App Auto-start

On some OnePlus phones, the auto-start feature can block background app activity. It’s recommended to disable this feature for SingularityApp.

Clearing the Recent Apps List

Normally, when you swipe an app away from the recent apps list, it continues to run in the background.

However, on OnePlus devices this can vary: sometimes the system fully closes the app after a swipe — depending on memory management settings.