Your OnePlus 15 suddenly restarting on its own after a software update can be frustrating and worrying. It may happen while you are using an app, when the screen is off, or even during charging. In most cases, these restarts are caused by post update conflicts, unfinished optimizations, or settings that did not carry over properly, and they can be fixed with a few careful checks.
Why Your OnePlus 15 Keeps Restarting After an Update
- The system is still completing background optimization after the update.
- A third party app is not fully compatible with the new software version.
- Battery or charging settings are conflicting with system processes.
- Cached system data from before the update is causing instability.
- Power or performance settings were altered during the update.
Restart the Phone Normally First
After a major update, the system may still be stabilizing in the background. A normal restart helps clear temporary processes and allows the system to reinitialize properly.
Press and hold the Power key, and then tap Restart.
Wait for the phone to fully boot, and then use it normally for a while to see if the restarts stop.
Check for Another Software Update
Manufacturers often release small follow up updates to fix bugs discovered after a major rollout. Installing the latest patch can immediately resolve random restart issues.
Open Settings, and then tap About device.
Tap Software update, and then check for any available updates and install them if found.
Review Recently Installed or Updated Apps
Some apps may not yet be optimized for the new software, which can cause system instability. Identifying and removing the problematic app often stops the random restarts.
Open Settings, and then tap Apps.
Tap App management, and review apps that were recently updated or installed, then uninstall any suspicious ones.
Turn Off Battery Optimization for Critical Apps
Aggressive battery optimization can interfere with system services or essential apps. Disabling it for key apps helps prevent sudden system interruptions.
Open Settings, and then tap Battery.
Tap App battery management, and adjust optimization settings for important apps like system tools or launchers.
Check Charging Accessories and Battery Settings
Faulty chargers or unstable charging behavior can trigger automatic restarts, especially after updates that adjust power management. Testing with reliable accessories helps rule this out.
Open Settings, and then tap Battery.
Tap Charging settings, and temporarily disable fast charging to see if stability improves.
Reset App Preferences
Sometimes, app permissions and background rules become misaligned after an update. Resetting app preferences restores defaults without deleting your data.
Open Settings, and then tap Apps.
Tap App management, then reset app preferences and confirm the action.
Accidental restarts on the OnePlus 15 after an update are usually software related and temporary. Once the system settles, incompatible apps are removed, and settings are adjusted, the phone should return to stable, reliable performance.
FAQs
How long should I wait after an update before worrying about restarts?
It is normal to see unusual behavior within the first 24 hours after an update. If restarts continue beyond that period, troubleshooting is recommended.
Can a single app really cause the phone to restart?
Yes. Poorly optimized apps can crash system processes, especially after major updates, leading to unexpected restarts.
Will a factory reset fix accidental restarts?
A factory reset often resolves deep software conflicts, but it should be used only as a last resort after trying all other fixes.
