Samsung phone unexpectedly powers off

Discover why your Samsung Galaxy phone powers off unexpectedly and learn how to fix it with battery safety tips, Safe mode troubleshooting, and factory reset guidance.

If your Samsung Galaxy phone turns off unexpectedly, it could be due to low battery, a malfunctioning power button, or problematic apps. Follow these steps to diagnose and resolve the issue effectively.

1. Why does my Samsung Galaxy phone turn off unexpectedly?

Unexpected shutdowns can occur for several reasons:

- Low battery: If your phone's battery is critically low, it may shut down to protect itself.

- Faulty power button: A stuck or malfunctioning power button can cause unintended shutdowns.

- Incompatible accessories: Non-Samsung chargers or cases may interfere with your device's operation.

- Problematic apps: Certain apps may cause crashes or freezes that lead to unexpected shutdowns.

2. How to fix unexpected shutdowns on Samsung Galaxy devices

Check your battery and charging setup

1. Ensure your phone has sufficient battery charge. If the battery is low, plug it into an original Samsung charger.
2. Remove any third-party cases or accessories that may interfere with the power button or charging port.
3. Inspect the power button for smooth operation. If it feels stuck or unresponsive, it may need repair.

Test in Safe mode

Safe mode disables third-party apps, helping you determine if an app is causing the issue.

1. Open the Power menu:
• Press and hold the Power key until the menu appears (for devices with a physical power button).
• Swipe down with two fingers from the top of the screen and tap the Power icon (for devices without a power button).
2. Touch and hold Power off until Safe Mode appears. Tap Safe mode to start your device.
3. Check if the issue persists in Safe mode. If it doesn't, a recently installed app is likely the cause.

Uninstall problematic apps

If the issue disappears in Safe mode, uninstall apps you recently downloaded:

1. Uninstall one app at a time, restarting your phone after each removal.
2. Once the problematic app is identified, reinstall other safe apps.

Reset your device

If the issue persists, perform a factory reset:

1. Back up your data using Smart Switch or a cloud account.
2. Go to Settings, search for Factory Data Reset, and follow the on-screen instructions.
3. Enter your Samsung account or lock screen password when prompted.

Additional things to check

Ensure your device is compatible with your carrier's network and that your SD card is decrypted before resetting.

Supported Samsung Galaxy devices

These steps apply to Galaxy S24, S25, S26, Galaxy Z Fold, Galaxy Z Flip, and Galaxy A series devices.

Related Samsung support topics

- How to free storage space on Samsung Galaxy devices

- How to use Smart Switch on Samsung Galaxy phones

- How to clear cache files on Samsung Galaxy devices