How to Fix It If Samsung Galaxy S25 Ultra Keeps Rebooting

If your Samsung Galaxy S25 Ultra keeps restarting on its own, the issue could be caused by software glitches, overheating, or faulty hardware. Here are several troubleshooting methods to fix the problem.

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1. Restart Your Phone Manually

A simple restart can clear temporary system errors that may cause rebooting issues.

1. Press and hold the Power button.
2. Tap Restart and wait for your phone to turn back on.
3. Check if the issue persists.

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2. Check for Software Updates

Outdated software may cause instability and unexpected restarts.

1. Open Settings > Software Update.
2. Tap Download and Install.
3. If an update is available, install it and restart your phone.

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3. Boot into Safe Mode

Safe Mode disables third-party apps that may be causing the issue.

1. Press and hold the Power button.
2. Tap and hold Power Off, then select Safe Mode.
3. Check if your phone continues to reboot.
4. If the issue stops, uninstall recently installed apps that may be causing conflicts.

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4. Clear Cache Partition

Clearing the cache partition can resolve system glitches that cause random reboots.

1. Power off your phone.
2. Press and hold the Volume Up and Power button until the Samsung logo appears.
3. Use the Volume buttons to navigate to Wipe Cache Partition.
4. Press the Power button to select it.
5. Select Yes, then choose Reboot System Now.

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5. Check for Overheating

Overheating can force your phone to restart to prevent damage.

1. Avoid using your phone while charging.
2. Close apps that require high processing power, such as games and video editing software.
3. Remove any thick cases that may trap heat.
4. Keep your phone away from direct sunlight or hot environments.

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6. Check Battery Health

A degraded battery can cause unexpected shutdowns and reboots.

1. Open Settings > Battery and Device Care.
2. Tap Battery > More Battery Settings.
3. Check the battery status and look for any warnings.
4. If the battery is faulty, consider getting it replaced at an authorized Samsung service center.

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7. Disable Auto Restart Feature

Your phone may be set to restart automatically at scheduled intervals.

1. Open Settings > Battery and Device Care.
2. Tap Auto Optimization > Auto Restart.
3. Turn off the Auto Restart at Set Times option.

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8. Remove the SIM Card and SD Card

A corrupted SIM or SD card can cause boot loop issues.

1. Power off your phone.
2. Remove the SIM card and microSD card.
3. Turn your phone back on and check if it still restarts.
4. If the issue is resolved, reinsert the SIM and SD card one by one to determine the cause.

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9. Uninstall Problematic Apps

Faulty or incompatible apps may cause random reboots.

1. Open Settings > Apps.
2. Look for any recently installed or suspicious apps.
3. Select the app and tap Uninstall.
4. Restart your phone and check if the issue is resolved.

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10. Reset All Settings

Resetting settings restores system configurations without erasing personal data.

1. Open Settings > General Management.
2. Tap Reset > Reset All Settings.
3. Confirm by tapping Reset Settings.
4. Restart your phone and check if it still reboots.

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11. Perform a Soft Reset

A soft reset can fix minor system glitches that cause your phone to restart unexpectedly.

1. Press and hold the Volume Down and Power button for about 10 seconds.
2. Release the buttons when the Samsung logo appears.
3. Wait for your phone to boot up and check if the issue persists.

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12. Contact Samsung Support

If none of the above solutions work, professional assistance may be needed.

1. Visit the official Samsung Support website.
2. Schedule an appointment at an authorized Samsung service center.
3. Explain the issue and follow the recommended troubleshooting steps.

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These troubleshooting methods should help resolve the random rebooting issue on your Samsung Galaxy S25 Ultra. If the problem continues, professional repair or battery replacement may be required.