Your Xiaomi 15 Ultra suddenly restarting after a software update can be alarming. It may reboot while you are using apps, watching videos, or even when the phone is idle. This issue usually happens due to post update conflicts, corrupted cache data, or system features that do not behave well after major changes. The good news is that most random restarts can be fixed without visiting a service center.
Why Your Xiaomi 15 Ultra Keeps Restarting After an Update
- Corrupted system cache left behind after the update
- Incompatible or outdated third party apps
- Battery optimization or performance features acting aggressively
- System bugs introduced by the latest update
- Overheating triggered by background processes
Restart Your Phone Normally
A normal restart helps clear temporary system processes that may be stuck after the update. It also allows the system to reload core services properly.
Press and hold the Power key, and then tap Restart.
Wait for the phone to boot fully, and then monitor if the random restarts continue.
Check for App Updates
Older apps may not be fully compatible with the latest system version. These apps can crash system processes, which may cause the phone to reboot unexpectedly.
Open Settings, and then tap Apps.
Tap Manage apps, and update all pending apps from the system app store or Play Store.
Clear Cache of Problematic Apps
Some apps retain corrupted cache data after updates. Clearing their cache can stop them from triggering system instability.
Open Settings, and then tap Apps.
Tap Manage apps, select a frequently used app, and then tap Clear cache.
Disable Performance or Game Boost Features
Performance focused features may push the system too hard after an update. This can lead to overheating or instability, especially during heavy use.
Open Settings, and then tap Battery.
Tap Performance or Game Turbo, and turn the feature off temporarily.
Check Battery Health and Temperature
If the battery is unstable or overheating, the system may force a restart to protect the hardware. This often happens shortly after major updates.
Open Settings, and then tap Battery.
Tap Battery usage, and check for abnormal drain or temperature warnings.
Install the Latest System Patch
Manufacturers often release follow up patches to fix bugs introduced in earlier updates. Installing them can immediately resolve restart issues.
Open Settings, and then tap About phone.
Tap Check for updates, and install any available system update.
Accidental restarts after an update are frustrating, but they are usually temporary. Once you stabilize apps, clear cache data, and apply the latest patches, your Xiaomi 15 Ultra should return to normal performance.
FAQs
Can a system update really cause random restarts?
Yes. Updates can introduce bugs or conflicts with existing apps and settings, especially in the first release.
Should I uninstall recently installed apps?
If the restarts started after installing a specific app, removing it can help confirm whether it is the cause.
When should I contact Xiaomi support?
If restarts continue even after updates and troubleshooting, hardware issues or deeper system corruption may be involved, and professional support is recommended.
