If your Galaxy S25 Ultra keeps restarting on its own after a recent update, you are not alone. This issue can happen minutes after unlocking the phone or even while it is sitting idle. In most cases, the problem is related to settings conflicts, battery management, or apps that did not adapt well to the update, especially on One UI 7.
Why Your Galaxy S25 Ultra Keeps Restarting After an Update
- A recently updated app is crashing in the background.
- Adaptive battery or power saving features are misbehaving.
- System cache data became unstable after the update.
- Auto restart or scheduled restart is enabled.
- The update introduced temporary software bugs.
1. Restart the Phone Properly
After a major update, the phone may not fully stabilize until it is restarted cleanly. This helps reload system services and clears minor background conflicts.
Swipe down from the top right of the screen to open Quick Settings.
Tap the Power icon, and then tap Restart.
Wait for the device to boot completely and observe if random restarts continue.
2. Check Auto Restart Settings
Samsung includes a feature that automatically restarts the phone for maintenance. After updates, this setting may become active without you noticing.
Open Settings, and then tap Battery and device care.
Tap Auto optimization, and then tap Auto restart.
Turn off Restart on schedule if it is enabled.
3. Turn Off Adaptive Battery Temporarily
Adaptive Battery is designed to save power, but after updates it can sometimes misjudge app behavior. Disabling it briefly helps determine if it is causing the restarts.
Open Settings, and then tap Battery.
Tap Background usage limits, and then tap Adaptive battery.
Turn it off and monitor your phone for a few hours.
4. Check Recently Updated Apps
Some apps are not immediately optimized for new system updates. These apps can crash repeatedly and force the phone to restart.
Open Settings, and then tap Apps.
Tap Sort, and then choose Last updated.
Uninstall or temporarily disable any app that was updated right before the restarts began.
5. Clear App Cache From Problematic Apps
Corrupted app cache data is a common cause of post update instability. Clearing it does not remove your personal data.
Open Settings, and then tap Apps.
Select the suspected app, and then tap Storage.
Tap Clear cache and repeat for other recently updated apps if needed.
6. Make Sure the Phone Is Not Overheating
Excessive heat can trigger safety restarts to protect internal components. After updates, background processes may run longer than usual.
Open Settings, and then tap Battery and device care.
Tap Diagnostics, and check the temperature and performance status.
Let the phone cool down and avoid heavy usage for a while.
Accidental restarts after an update are usually temporary. Once settings settle and apps catch up, your Galaxy S25 Ultra should return to normal stability within a day or two.
FAQs
How long do post update restart issues usually last?
In most cases, random restarts stop within 24 to 48 hours as background processes finish optimizing and apps update properly.
Can a system update damage my Galaxy S25 Ultra?
No. Official Samsung updates are safe, but temporary bugs or app conflicts can cause restarts until everything stabilizes.
Should I wait for another update if the problem continues?
If restarts persist after several days and troubleshooting steps, a follow up patch from Samsung usually resolves the issue quickly.
