When your brand new Samsung Galaxy S26 Ultra starts having apps crash or freeze, it can really throw you off. This is a powerful phone, so it's usually a software hiccup rather than a hardware problem. I'd start with a simple restart, but if that doesn't stick, there are several other effective fixes to try.
Force Restart Your S26 Ultra
This is the quickest fix and often solves temporary glitches, especially on a new device. Press and hold the Volume Down button and the Side/Power button together for about 10 seconds. Release when you see the Samsung logo appear on the screen.
This is different from a normal restart and can clear out minor software conflicts that cause apps to misbehave. It's the equivalent of giving the system a fresh, clean boot.
Update All Your Apps
Since the S26 Ultra is a 2026 device running the latest One UI 8.5, some apps might not be fully optimized yet. Developers release updates constantly to fix these compatibility bugs.
Open the Galaxy Store and Google Play Store separately. In each, go to the updates section and install everything available. The Galaxy Store handles Samsung-specific apps and services, which are crucial for system stability.
Check for a System Update
Samsung is likely pushing out early software updates to address bugs on the new S26 series. Go to Settings > Software update and tap Download and install.
Make sure your phone is connected to Wi-Fi and has at least 50% battery. A major One UI update can fix underlying system issues that are causing widespread app instability.
Clear the App's Cache and Data
Corrupted temporary files are a common culprit. Clearing the cache is safe and won't delete your login info. Clearing data will reset the app, so you'll need to sign back in.
Go to Settings > Apps, select the problematic app, then tap Storage. Tap Clear cache first. If the app still crashes, go back and tap Clear data.
Free Up RAM and Storage Space
Even with lots of memory, too many apps running in the background can cause conflicts. Swipe up from the bottom and hold to enter the recent apps view, then tap Close all.
Also, check your storage. Go to Settings > Battery and device care > Storage. If you're below 10GB free, consider offloading some photos or videos to Samsung Cloud or deleting unused apps.
Review Your Battery Protection Settings
The S26 Ultra has a battery protection feature enabled by default that limits charging to 85%. While great for battery health, some power-intensive apps might behave oddly if they think the battery is perpetually low.
You can toggle this temporarily to test. Go to Settings > Battery > More battery settings and turn off Protect battery. See if app stability improves when you charge to 100%.
Boot Into Safe Mode
This starts your phone with all third-party apps disabled. If the crashing stops in Safe Mode, you know a downloaded app is causing the problem.
To enter Safe Mode, press and hold the power button until the power menu appears. Then, tap and hold the Power off icon until you see the Safe Mode prompt. Tap to confirm. To exit, just restart your phone normally.
Reset All App Preferences
This resets permissions, background restrictions, and notification settings for all apps without deleting any of your data. It can fix issues where an app is being blocked from a system resource it needs.
Navigate to Settings > Apps > tap the three-dot menu in the top right > Reset app preferences. You'll need to re-grant permissions like location or microphone the next time you use each app.
Perform a Factory Reset
This is the last resort, but it's effective for persistent, unexplained software issues. Back up everything important to your Samsung account or a computer first, as this erases the phone completely.
Go to Settings > General management > Reset > Factory data reset. After the reset, set up the phone as new initially to see if the problem is gone, rather than restoring from a backup which could bring the problem back.
