How to Fix an Android Phone That Keeps Restarting

Is your Android phone restarting by itself, even when you're not touching it? Perhaps it switches off and comes back on repeatedly, restarts while you're using an app, or gets stuck in a restarting loop.

This problem can be frustrating, especially when you need your phone for calls, messages, work, or browsing.

The cause may be a temporary software problem, a faulty app, overheating, insufficient storage, or a hardware issue. Fortunately, there are several safe troubleshooting steps you can try before seeking professional help.

In this guide, you'll learn how to identify possible causes and troubleshoot an Android phone that keeps restarting.

1. Check Whether Your Phone Is Overheating

Excessive heat can cause some phones to shut down or restart to protect their internal components.

If your phone feels unusually hot, disconnect it from the charger if it is safe to do so, stop using demanding apps, and let it cool naturally in a well-ventilated place.

Avoid placing it in a refrigerator or using ice or other methods to cool it rapidly.

If the phone becomes unusually hot repeatedly, even during light use, have it checked by a qualified technician.

2. Check Your Phone's Battery and Power Button

A worn battery or a power button that is stuck or damaged can sometimes cause unexpected restarts.

Try these checks:

• Make sure your phone's case isn't pressing against the power button.
• Remove the case temporarily and see whether the problem continues.
• Check whether the phone restarts when you gently handle it or move it.
• Notice whether the problem happens mainly when the battery level is low.

If the phone has a removable battery, follow the manufacturer's instructions for checking it. Don't open a phone with a built-in battery yourself.

If the battery is swollen, the phone's body is separating, or you notice unusual heat, stop using and charging the phone and seek professional assistance.

3. Free Up Storage Space

When a phone has very little available storage, apps and system processes may not work properly.

To check your storage:

1. Open Settings.
2. Tap Storage. The exact menu name varies by phone.
3. Check how much space is available.
4. Remove unnecessary downloads or files you no longer need.
5. Clear an app's cache if you suspect that app is causing problems.

Review your files before deleting anything important. Back up photos and documents you want to keep.

Freeing storage may help if space is contributing to the problem, although it won't resolve every cause of unexpected restarts.

4. Update Your Android System

An outdated operating system or a software bug may sometimes contribute to restarting problems.

To check for an update:

1. Open Settings.
2. Look for System, Software update, or About phone.
3. Open the software update section.
4. Check for available updates.
5. Follow the instructions if an update is offered.

Menu names differ between manufacturers. Keep your battery sufficiently charged and use a reliable internet connection before starting an update.

If your phone restarts too frequently to complete an update safely, seek help from the manufacturer or a repair professional.

5. Check Whether an App Is Causing the Problem

If the restarting started after you installed or updated an app, that app may be contributing to the issue.

Try the following:

1. Think about which apps you installed or updated shortly before the problem began.
2. Update your apps through the official app store if your phone remains stable enough.
3. Uninstall a recently installed app if you suspect it is responsible.
4. Restart the phone normally and observe whether the problem continues.

Avoid installing unfamiliar apps that promise to repair every Android problem. They may not solve the issue and can introduce additional risks.

Try Safe Mode if Available

Safe Mode starts Android with most third-party apps temporarily disabled. This can help you determine whether a downloaded app is responsible.

The method for entering Safe Mode varies by phone manufacturer. Check your manufacturer's official instructions for your specific model.

If the phone stops restarting in Safe Mode, a downloaded app may be involved. If the problem continues, the cause may be related to the operating system or hardware.

Remember that Safe Mode does not permanently remove your apps.

6. Check Whether the Problem Happens While Charging

If your phone restarts mainly when connected to a charger, the charging accessory, charging port, battery, or power circuitry may be involved.

Try a compatible, undamaged charger and cable from a reliable source, and check whether the problem continues.

Do not use a cable or charger that is frayed, damaged, or unusually hot. Don't insert metal objects into the charging port or attempt to repair internal charging components yourself.

If the phone continues restarting while charging, have the device inspected.

7. Consider a Factory Reset Only as a Last Resort

A factory reset erases personal data stored on the phone and returns many settings to their original state. It should not be your first troubleshooting step.

Before considering one:

• Back up important photos, contacts, documents, and other files.
• Make sure you can access the Google Account associated with the phone.
• Check the manufacturer's instructions for your particular model.
• Consider professional assistance if the phone cannot stay on long enough to complete a backup.

A factory reset may help with some software problems, but it won't fix a failing battery or other physical damage.

If the phone keeps restarting and you cannot back up your data, seek advice from a reputable repair professional before resetting it.

8. When Should You Seek Professional Help?

Contact the manufacturer or a qualified phone technician if:

• Your phone continues restarting after basic troubleshooting.
• It restarts before you can access Settings.
• The power button appears damaged or stuck.
• The device has suffered a fall or liquid damage.
• It becomes unusually hot or shows signs of battery swelling.
• It repeatedly restarts even in Safe Mode.

Explain when the problem started and what troubleshooting steps you've already tried. This information can help the technician narrow down the cause.

Frequently Asked Questions

Why does my Android phone keep restarting by itself?

Possible causes include software bugs, problematic apps, overheating, low available storage, battery problems, a faulty power button, or other hardware faults.

Can a faulty battery cause repeated restarts?

Yes. A degraded or damaged battery may cause unstable power delivery, which can lead to unexpected shutdowns or restarts. A technician can check whether the battery is responsible.

Will updating Android stop my phone from restarting?

It may help if a software bug is responsible. However, updates won't necessarily fix problems caused by damaged hardware or a failing battery.

Should I factory-reset my phone?

Only consider this after trying safer troubleshooting steps and backing up your important data. A reset may help with some software issues, but it isn't guaranteed to fix the problem.

Why does my phone restart when I open an app?

The app may have a software issue, or it may be triggering a problem with the phone's system or hardware. Update or remove the suspected app if possible. If the whole phone continues restarting, investigate further.

Final Thoughts

An Android phone that keeps restarting can have several different causes, so start with the simplest checks. Let an overheated phone cool naturally, check the power button and charging accessories, free up storage, and investigate recently installed apps.

If the problem persists, avoid repeatedly resetting the phone or attempting risky repairs. A qualified technician can help determine whether the device needs software troubleshooting or hardware repair.

For more practical Android tutorials and troubleshooting guides, keep visiting JTechHelp — Keep Moving Forward.

Related Articles

You may also find these JTechHelp guides useful:

• How to Make an Android Phone Faster Without Installing Any App
• How to Free Up Storage Space on an Android Phone Without Deleting Important Files
• How to Make Your Android Phone Battery Last Longer
• How to Fix Apps That Keep Crashing on Android

Explore more practical Android tips and troubleshooting guides on JTechHelp — Keep Moving Forward.