How to Fix Galaxy S26 Restarting Randomly After Update
Galaxy S26 Restarting Randomly After Update usually means post-update cache is corrupted, a third-party app is unstable, or the new build triggered crashes in the background.
For related help, also see How to Fix Galaxy S26 Stuck in Boot Loop After Update, How to Fix Galaxy S26 Black Screen After Update, How to Fix Galaxy S26 Camera Blurry After Update, and the Galaxy S26 hub.
Method 1: Boot into Safe Mode
Safe Mode can quickly tell you if an app conflict is causing the restarts.
- Restart the Galaxy S26 into Safe Mode.
- Use it for a while without extra apps.
- If it stays stable, remove recently updated apps.
Method 2: Check storage and system updates
Nearly full storage and incomplete app optimization can make the phone reboot unexpectedly.
- Open Settings > Battery and device care > Storage.
- Free space if needed.
- Install pending Play Store, Galaxy Store, and system updates.
Method 3: Wipe the cache partition
This is one of the best fixes for update-related restart problems on Samsung phones.
- Power the phone off.
- Enter recovery mode.
- Select Wipe cache partition and reboot.
Method 4: Reset all settings
A broken system setting can cause instability after an update even when your files are fine.
- Open Settings > General management > Reset.
- Tap Reset all settings.
- Restart the phone and test again.
Method 5: Factory reset if reboots continue
If the Galaxy S26 keeps restarting after all other steps, the firmware install may need a clean rebuild.
- Back up your data.
- Perform a factory reset from settings or recovery mode.
- Set the phone up as new first before restoring everything.
If the problem continues after all of the steps above, visit the main Galaxy S26 page for more troubleshooting guides.