Samsung Phone Keeps Restarting: How to Fix It

Random Samsung restarts usually point to an app, overheating, power issue, storage problem, or unfinished update. A tight boot loop can point to a failed update, corrupted software, or hardware trouble.

These steps apply to Samsung Galaxy phones and tablets running recent Android and One UI versions.

Does This Affect You?

Use this if your Samsung restarts occasionally, restarts while charging or gaming, or cannot stay on long enough to use.

Find the Pattern for Occasional Restarts

1. Notice what was happening before the restart: a specific app, charging, gaming, update download, or no clear action.
2. Open Battery and device care and check battery usage for unusual app drain.
3. Update or temporarily uninstall any app linked to the restart.
4. Open Settings > Software update > Download and install to finish pending updates.
5. Free storage if the phone is nearly full.

If Restarts Happen While Charging or Under Load

1. Remove the case during charging, gaming, or video recording.
2. Avoid charging under pillows, on soft surfaces, in hot cars, or in direct sun.
3. Use a Samsung or USB-IF certified charger and cable.
4. Close background apps before demanding tasks.

If the Phone Is in a Boot Loop

1. Let it try to boot three or four times. Some update loops finish on their own.
2. Try Safe Mode by holding Volume Down while the Samsung logo appears until startup completes.
3. If Safe Mode is stable, uninstall recently installed apps.
4. If it cannot reach Safe Mode, use Recovery mode only if you understand the risk.
5. Use Wipe data/factory reset as a last resort because it erases the phone.

Important Warnings

Factory Reset Erases Data

A factory reset removes apps, photos, messages, and settings. If the phone cannot boot, you may not be able to create a new backup first. Use it only when you accept that risk.

Battery Hardware Can Cause Restarts

Older degraded batteries may restart under load because they cannot deliver stable power. A Samsung service center can test this directly.

Persistent Loops Need Repair

If Safe Mode, updates, storage cleanup, cooling, and reset options do not help, hardware repair or Samsung Support is the next sensible step.

Sources

• Samsung Support: Galaxy phone randomly restarts
• Samsung Support: Fix phone restarting in Recovery mode
• Samsung Support: Start Galaxy phone in Safe Mode

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