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iPhone Keeps Restarting in iOS 15? Check the 10 Ways Here

DoubtUser Concern

“I woke up this morning and my iPhone 11 just kept restarting randomly, even when I wasn't om my phone. I've updated to iOS 15 and it's continuing. I don't knpw how to stop it. Any suggestions?” - from Apple Discussions

Hey, It's Joan here again. I am a Apple expert and interested in researching all tips about iPhone, iPad and iPod touch. Thanks for visiting my website.

Today, you can read this article to learn how to fix iPhone keeps restarting in iOS 15.

After getting a new iPhone 12, iPhone 12 mini or iPhone 12 Pro (Max), everything seems to operate normally. You also upgrade your device to the newest iOS 15 without hesitation. Then problems arise. One of the most common issues is iPhone/ iPad keeps restarting.

What should you do? Take it to Apple Store to repair?

Undoubtedly, It would be a high maintenance cost. Try out some feasible options to fix iPhone keeps restarting issue before going to Apple Store.

Why Does Your iPhone Keep Restarting Itself?

From what I have experienced, there are two ways that iPhone keeps restarting:

  • iPhone restart intermittently: You can access and use your iPhone for a while but it suddenly restarts after a few moments.

  • iPhone restart loop: The iPhone continuously restarts over and over again and you couldn't access the device at all.

There could be plently of reasons for the iPhone keeps restarting itself. Below are some common factors that often cause this issue:

  • Unstable iOS Update: The iOS update process was interrupted for network interrruption or other unknown reasons, which might result in iPhone keeps restarting error.

  • Malware Attack: You may jailbreak your iPhone to install apps from third-party sources. This makes it easy to install malware and get security threats.

  • Problematic apps or insufficient storage can often cause the iPhone to restart itself.

  • Hardware issues like iPhone water damaged or broken Power key might also cause the device to continueously restart.

Back Up Your iPhone First

Before making any fixes, make sure your iPhone data is backed up. Some of the troubleshooting tips below may erase or restore your iPhone to stop it from restarting. If you don't make a backup, you will the data. If you can access your iPhone, you can easily back up the device using iCloud. If not, you can try to connect your iPhone to a computer and make a backup using iTunes/Finder or using third-party tools like FoneGeek Backup & Restore (iOS).

What To Do If Your iPhone Keeps Restarting

Tip 1. Force Restart Your iPhone

Force restarting iPhone is usually the first and most time-saving method when there is a software bug on your iPhone. There are different ways to force restart an iPhone, depending on the device model.

  • Force Restart iPhone 8 or Later: Press and release volume up button quickly, then press and release volume down button, finally keep pressing the side button for a while until the Apple logo appears.

  • Force Restart iPhone 7 or iPhone 7 Plus: Keep pressing and holding volume down and power button at the same time until the device turns into Apple screen.

  • Force Restart iPhone 6S or Earlier: Press and hold the power button and the home button together for a few seconds until the Apple logo appears on the screen.

force restart iphone

Tip 2. Uninstall the App Causing Your iPhone Keeps Restart

In most cases, iPhone or iPad restarts randomly due to the faulty apps not running properly. If your iPhone keeps restarting after you install an app, try to uninstall the problematic app then check whether the bug can be removed itself.

To uninstall an iPhone app, keep holding the app icon until it starts wiggling. Tap the X at the top left corner to remove the app from your iPhone.

Tip 3. Update All Apps on App Store

Some outdated apps can dramatically decrease battery life and makes the iPhone crash and restart. If you found this kind of apps installed on your iPhone, go to App Store > Updates and update all the apps to the newest versions.

update all apps

Tip 4. Turn Off Background App Refresh If Necessary

If the Background App Refresh of some apps is enabled, the content will be updated automatically when the device is connected with WiFi or cellular data in the background, which puts much pressure on iPhone or iPad. As a result, it's necessary to turn off the Background App Refresh of some apps that you don't need. Navigate to Settings > General > Background App Refresh and turn it off.

turn off background app refresh

Tip 5. Update Software on Your iPhone

Since the iPhone keeps restarting issue is often caused by a software bug, the right way to solve it is to install an iOS update. Go to Settings > General > Software Update to download and install the lateste version of iOS 15.

update ios version

Tip 6. Remove Your SIM Card and Reinsert It

If your iPhone has a problem to connect to the wireless carrier, it may also stuck into the restarting loop. In such situaton, you can fix this issue by turnning off the iPhone, removing the SIM card and then reinserting it back.

remove sim card iphone

Tip 7. Clean Up Internal Storage

If you don't take good care of your iPhone, the performance of the devicewill be affected even if the storage is of 256GB. So one of the best ways to keep the device running smoothly is to clean the app cache and redundant data. Uninstall useless apps or make use of some handy cache cleaner apps can help a lot.

Tip 8. Reset All Settings

If your iPhone still keeps restarting itself, you can try to reset all settings. This proves to be helpful in solving various problems on iPhone. Just head to Settings > General > Reset and choose "Reset All Settings".

reset all settings iphone

Tip 9. Restore iPhone Using iTunes

If the problem continues even after resetting all settings, restoring iPhone is something you can have a try. Before going ahead, please first back up your important data as this will erase all contents and settings on your device.

  1. Connect your iPhone to your computer and lauch iTunes (or Finder in macOS Catalina).

  2. Locate your iPhone and click on "Restore iPhone".

  3. When the restore process is complete, you can set up the iPhone as new or restore from a previous backup.

restore iphone with itunes

iPhone Still Keeps Restarting? Try This Solution

If you search online, you could find several professional software designed to deal with various iPhone problems, such as FoneGeek iOS System Recovery, which is mainly used to fix almost all kinds of iPhone problems appeared in iOS 15/14, etc. What is mentioned most is iPhone restarting loop, stuck at updated request, iMessage problems, etc. For detailed information, you can refer the steps given below.


Step 1. Download, install and launch the iOS System Recovery on your computer. Select "Standard Mode" and connect your iPhone via USB cable.

choose repair mode and connect the device

Step 2. Once your device is detected, select the firmware package according to the device information and hit the "Download" button.

download firmware package

Step 3. When the firmware is downloaded successfully, click on "Fix Now" and the program will start to fix iPhone keeps restarting issue.


The Bottom Line

I wish the solutions mentioned above will bring your device to normal without any hassle. Let us know your feedback about whether you have successfully restarted your device or have any other issues.

Joan J. Mims
Monday on May 14, 2018, 15:19:02 GMT / Post By Joan J. Mims to iPhone Issues

Joan J. Mims is interested in researching all tips about iPhone, iPad and Android. He loves to share useful ideas with all users.

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