Why Does Your Phone Keep Restarting? 13+ Potential Issues and Solutions (2024)

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Co-authored byJosef Storziand Danielle Blinka, MA, MPA

Last Updated: June 26, 2022References

Software Glitch

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1. Doing a force restart might fix the problem with an iPhone.^[1] Simply turn off your phone and wait about 20 to 30 seconds. Then, turn your phone back on.^[2] This might break the restart loop.

   • This problem is less common with Androids.

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System Update

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1. Old software might start to malfunction, causing your phone to restart. Open the settings on your phone. If you’re using an Android, click “system,” “advanced,” and then “system update” to see if you need an update. If so, follow the screen instructions to initiate it.^[3] If you’re using an iPhone, click “settings,” “general,” and then “software update.” If you see an update, select “download & install.”^[4]

   • Backup your phone before you start the updates just to be on the safe side.
   • Try another fix if your phone is fully updated or if the update doesn’t fix your restarting issue.

Full Storage

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1. A full storage can cause your phone to malfunction.^[5] On an iPhone, open “settings,” then click on “general” and “iPhone storage.” For an Android, select “settings,” then click on “storage.”^[6] If your storage is full, free up space by deleting videos, photos, apps, app data, or files saved to your phone.^[7] If this doesn’t fix the problem, you likely have another issue.

   • For example, you might delete apps you aren’t using or media you downloaded to your phone, such as movies, music, or podcasts.

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Outdated Apps

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1. Outdated apps can also make your phone crash and restart. For an Android, check for app updates by going to the Google Play Store, clicking on your profile, and selecting “manage apps & devices.” Select “updates available” and install any that are available.^[8] For an iPhone, open the App Store, then select “updates.” Click on “update all” to update all of your apps or update each app individually by clicking the “update” button next to that app.^[9]

   • Don’t give up if this doesn’t work! There are still some fixes you can try.

Background App

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1. Try forcing the app to stop to see if this fixes the problem. On an Android, open “settings,” click on each app, and select “force stop.”^[10] On an iPhone, bring up the apps currently in use by swiping up from the bottom if your phone is an iPhone 10 or newer or by double-clicking your home button on an earlier model. Slide your finger to the left or right to see which apps are open, then swipe up on each app to close them.^[11]

   • Close all of the apps to make sure there are no issues. There’s no way to tell which open app is causing your problems.

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Malicious Third Party App

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1. Restarting in safe mode can help you detect problematic apps. Look up the instructions for restarting your phone model in safe mode on the manufacturer’s website, as each phone has a different process. If restarting in safe mode fixes your issue, an app is probably what’s causing your phone to restart. After restarting your phone again the normal way, remove the apps you recently downloaded one by one to see if this fixes your issue.^[12] If your phone is still restarting, you might have another problem.

   • Keep in mind that restarting in safe mode will temporarily disable all of the apps you’ve added to your phone. Later, you can restart the apps by restarting your phone the regular way.

Debris in Ports

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1. Take off your phone case so you can inspect your phone. Then, check the ports for debris. If you find any, gently remove it with a pointy object, such as a toothpick. Finally, clean around the buttons. Check your phone to see if this fixed your problem.^[13]

   • This is more commonly an issue if your phone is restarting while you’re charging it.

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Add-ons Covering Buttons or Sensors

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1. See Also

   iPhone keeps restarting? Here's how to fix it!

   External accessories are fun, but they could cause problems. Things like external battery packs, car mounts, stands, PopSockets, and selfie sticks can trigger problems like constant restarting. Take these accessories off to see if the problem goes away.^[14]

   • This is a less common cause, but it’s good to rule it out before going in for a phone repair.

Settings

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1. It’s possible your current settings are causing your phone to restart. To reset them, open “settings” and click on “general.” Then, select “reset” and “reset all settings.” This may fix your problem. If not, you might need to do a full factory reset.^[15]

   • If you have an Android, you won’t be able to reset just your settings.

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Old Battery

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1. An old battery may not hold a charge. If you can open the back of your phone, check the battery to see if it looks worn or loose. Otherwise, take your phone into the repair shop or the store where you bought it to get your battery checked. Replacing your battery may fix your restarting issue.^[16]

   • Unless you know your battery has problems, try the software fixes first. They’re more likely to be causing your phone to restart.

Recovery Mode

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1. Recovery mode resets your iPhone to factory settings with recent iOS updates.^[17] Start by plugging your phone into your computer. Open Finder if you’re using macOS Catalina or Big Sur or iTunes if you’re using macOS or Windows. Press and release volume up on your phone, then press and release volume down on your phone. Hold and press the side button to turn off the phone, and keep holding it until you see a lighting cable with an arrow. Release the button to bring up a pop-up in Finder or iTunes. Click the button that says “restore” to totally reset your phone.^[18]

   • This will delete all of your data, but you can restore it to your phone using a recent backup.

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Factory Reset

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1. Always backup your phone before doing a factory reset.^[19] For an Android, open “settings” and click on “factory reset.” If you’re having trouble finding it, check your manufacturer’s website.^[20] For an iPhone, open “settings,” then click on “general,” “reset,” and “erase all content and settings.” Finally, enter your phone’s passcode and press the “erase iPhone” confirmation button that appears.^[21]

   • After the factory reset, restore your phone using your most recent backup.
   • Only do a factory reset if you’ve already tried all of the other software fixes.
   • Keep in mind that a factory reset will clear everything off your phone. Make sure you do a backup first so you can restore your information, data, and apps.

Hardware Issue

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1. This is more likely to be the case if your phone is old or you dropped it. If software fixes aren’t helping, your hardware is likely the problem. iPhones restarts usually because either the microphone is damaged or the camera is damaged. If you have an iPhone, take your phone to the Apple Genius Bar.^[22] For an Android phone, go to a repair shop or take your phone back to the place you bought it.

   • Water damage is another cause phones always reboots, because water will damage the sensor and sensor failure will cause the reboot.
   • If you have insurance on your phone, the repair or replacement may be covered.
   • In some cases, you may need to replace your phone if it’s damaged beyond repair.

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