As iPhone users, you may face some unexpected problems, like “Why does my iPhone keep restarting itself”. However, most of you have no idea about why my iPhone keeps restarting over and over again. In the following post, we will offer you several solutions to fix this “iPhone keeps restarting” issue. Before you start fixing the issue following the guidance below, please keep in mind that you need to back up your iPhone. Backing up data and everything that you don’t want to lose with iTunes, iCloud or you can back up data to computer with iPhone data transfer tool. If something goes terribly wrong during the process of fixing the issue, you can always restore your iPhone to its original working condition if you have taken backup.

Part 1: Why My iPhone Keeps Restarting?

Before you start to handle how to fix the issue of “my iPhone keeps restarting”, it is necessary for you to understand the reasons for it. Here comes some common ones for your reference.

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  • iPhone keeps restarting may be caused by an interrupted update due to a failing network connection or low battery.
  • Malware is also a common cause for this issue. It is important for you to pay attention to the safety of the app when you install it on your iPhone.
  • If there is no sufficient storage on your iPhone, the restarting issue can also occur.
  • When your iPhone hardware is damaged for some reason like water damage, broken, etc., you will see your iPhone keep restarting as well.
  • You can also check if any iPhone driver is unstable after a big change in your iPhone.
  • If you have installed an application on your iPhone improperly, this issue can also happen now and then.

Part 2: How to Fix iPhone Keeps Restarting but still Allows You to Enter System?

If you can still enter system after the problem of “my iPhone keeps restarting” happened, you can check out the following measure to fix this issue properly.

1. Update All Apps to the Latest Version

Sometimes, if your apps installed on the iPhone are outdated, you will not be able to use your iPhone normally with the restarting trouble. In this case, you can update all apps to the latest version to clear off this issue. Here comes how to make it.

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Steps:

  1. Navigate to the App Store on your iPhone screen and then hit on the section of “Updates” in the bottom left corner of the window.
  2. After that, you need to click on the button of “Update All” to begin to update all existing apps on your iPhone. Alternatively, you can choose specific apps you desire to update one by one.

2. Find and Uninstall the App Causing Your iPhone Keeps Restarting

If you find that after you install and use a certain app, the issue of iPhone keeps restarting begins, you are recommended to remove it to fix this error. You can get this work done is to tap and hold on the app icon till it starts to wiggle. Then you can press the “X” button to get rid of the troublesome app.

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3. Update to the Latest iOS System

Updating iOS can fix lots of bugs for software errors and other problems. Once the iPhone has backed up, go to Settings and tap on “General”, followed by “Software Update”. When you see an update available, choose “Install Now”. When the update complete installation of itself, the device will automatically reboot and boot back up as normal when finished.

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You can also update the iPhone by connecting your iPhone to your computer. iTunes is used to update the iPhone’s software (iOS).

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Steps:

  1. Connect your iOS iPhone to your computer using a USB cable. Then launch iTunes.
  2. Click device button to the left of the iTunes Store button in the top right corner in iTunes. Then click “Summary” in the left sidebar.
  3. Click the “Check for Update” directly and iTunes will check the latest iOS to you.

4. Reset All Settings

If the above three methods can’t get you out of problems, and your iPhone still keeps restarting, then you should turn to other methods for help. Next thing you can turn to is to reset all settings on your iPhone. That is also known as factory reset. In comparison, factory reset your iPhone is an easy task. Factory reset is to set your iPhone to the very beginning state when you first bought it from the store. All the data and settings would be wiped away if you adopt this way. The steps below would show you how to factory reset your iPhone. Just as mentioned above, you had better back up your data before you factory reset the iPhone.

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Step 1: Open the “Settings” app on your iPhone and then go to “General”.

Step 2: Scroll down to the bottom of the screen and you can find the “Reset” option. Click “Reset” button to enter the detailed options.

Step 3: Click “Erase All Content and Settings” option under the “Reset” tab. Here, you have to know more about this option. “Erase All Content and Settings” would delete all the user data on your iPhone and the related settings, but it would not make any changes to your iPhone’s operating system. If you tap this option, your iPhone would be prompted to the factory settings.

5. Free up Space on Your iPhone

It is a good idea to try to free up space on your iPhone to get out of trouble. For this measure, you can follow the tips shown below.

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  • Turn off the feature of Photo Stream
  • Delete some downloaded songs, podcasts, e-books, reading list, etc.
  • Remove some apps
  • Clear your browser cache
  • Stop double-saving images
  • Terminate saving texts forever

Part 3: How to Fix iPhone Keeps Restarting and Won't Let You Operate?

If you are not able to do any operation with your iPhone when it keeps restarting, you can turn to the check out the following methods to help you out.

1. Force Restart to Fix iPhone Keeps Restarting

A simple step you can do is to force restart your iPhone if your iPhone keeps restarting without any reasons. The steps below would show you how to force restart your iPhone.

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Steps:

  • For iPhone 6/6s and the earlier models, hold down both Sleep/Wake and Home buttons for at least 10 seconds, then let go the buttons when Apple logo appears.
  • For iPhone 7 or 7 Plus, hold down Volume Down and Sleep/Wake buttons at the same time for at least 10 seconds and then release them until you see the Apple logo.
  • For iPhone 8, X, 11, 12 and later model, press and hold Volume Up button for a few seconds and quickly release it. Press and hold the Volume Down button for a few seconds and quickly release it. Finally, press and hold the Sleep/Wake button and release it when seeing the Apple logo.

2. Re-insert Your SIM Card

If you have tried to force reset your iPhone, but this iPhone restart loops still happen, then it might be caused by the improper connection to your wireless carrier. Usually, the SIM card would connect your iPhone to your wireless carrier, if this is the exact cause for the failure, then if you can reinstall your SIM card, or simply removing the SIM card, then the problem would be resolved. But you can trust this method that it would not affect your iPhone at all. When you try to reinstall or remove the SIM card from your iPhone, the connection would be lost for the very short time until you put it back to the phone again. Then, how to reinstall your SIM card? The steps are clearly elaborated below.

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Steps:

  1. Prepare a paper clip which could easily allow you to pull the SIM card out from the card tray in your iPhone. You can find the SIM tray at the right side of your iPhone.
  2. Remove your SIM card from it.
  3. Put the SIM card back in your iPhone. Then, your iPhone would be connected to your carrier once again when you put it back.

If your problem still exists after reinstalling your SIM card, then you have to double check about your SIM card for any further problems. Make sure you have used the correct compatible SIM type with your iPhone.

3. Clean iPhone Charging Port and Headphone Jack

The issue of iPhone keeps restarting is likely to happen when you charge your iPhone or insert a headphone to the port. If this is just your case, you can give it a go by cleaning your iPhone charging port and the headphone jack to save your iPhone.

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Steps:

  1. First, you need to find a toothpick or a small needle.
  2. Then you can use the little tool to clear off any dust or dirt from your iPhone charging port and headphone jack.
  3. Afterwards, you may find your iPhone comes back to normal. This way can also be used when your iPhone is stuck in headphone mode.

4. Restore Your iPhone in Recovery Mode

But in some cases, the above solutions would not let you out. Your iPhone would present to be restarting and sometimes even your iPhone says that now your iPhone is in the recovery mode. In such a case, you can reset your iPhone in recovery mode. If you are not familiar with the recovery mode, follow the step below to complete the restoring process. But you have to be clear that restoring your iPhone in recovery mode would not keep your data safe and sound. Instead, all your data on the iPhone you stored before would be totally removed from your phone. In order to prevent these data from being lost from your iPhone, backing them up via iTunes or iCloud could be quite necessary. Once you can guarantee all your data have been backed up, then you can follow the steps below to restore your iPhone in recovery mode.

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Step 1: Update your iTunes to the latest version.

Step 2: Connect your iPhone to your computer. You should press and then quickly release the Volume Up button. Then press and quickly release Volume Down button. Then press and hold the Up button on the top still until your iPhone goes into the recovery mode. If your iPhone has the Home button, then you should press and hold both the Home and the Top (or Side) buttons at the same time. Hold them still until you can see the recovery mode screen. You can click here to learn more methods to enter recovery mode on your iPhone.

Step 3: Update your iPhone. Once you have connected your iPhone to your computer and on the iTunes interface you can find the “Update” option. Then click it to allow your iPhone to download the backed up data from computer to your iPhone. As well, the previous data would be removed when you start it. Wait patiently and the recovery mode would last 15 minutes and the updates would be completed then.

Part 4: How to Fix iPhone Keeps Restarting Under Any Circumstances?

Sometimes, some unfriendly things would happen while restoring your iPhone in recovery mode, for example, some data have been damaged or lost while the backup process. Furthermore, you would like to fix this error effectively without disturbing any data on your iPhone. If this is what you want, a professional program is strongly recommended to your. Leawo iOSFix can handle over 50 iOS/tvOS issues, such as black screen, iPhone no service, stuck in transferring data, iPhone keeps restarting, etc. Have a look at the following steps and you will know how powerful it is.

Step 1. Download Leawo iOSFix

Download Leawo iOSFix from its website and then install it on your computer for preparation to solve the iPhone restarting error.

  • iosfix
  • Leawo iOSFix

    - Fix 50+ iOS/tvOS issues on iPhone, iPad, iPod or Apple TV
    - 2 repair modes for data lossless fixing
    - Fix all iOS and tvOS versions in clicks
    - Multiple iOS/tvOS system fixing pathse
    - One-click to upgrade to the latest iOS/tvOS version
    - One-click to enter/exit Recovery Mode
    - Troubleshoot iOS/tvOS not recognized issues in detail

Step 2. Run the Software

Connect your iPhone with your computer with a matched USB cable. Launch the software whenever you desire to settle an issue on your device. The program will detect your iPhone automatically.

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Step 3. Choose Repair Mode

The next window will show you two options: “Standard Mode” and “Advanced Mode”. You are advised to choose the first mode, for it will not erase any data on your iPhone. The second mode is recommended to apply when the first mode failed to help you out of trouble.

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Step 4. Download Firmware

Confirm your iPhone information and then click on the “Download Now” button to start downloading the suitable firmware for your iPhone directly.

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Step 5. Start Fixing iPhone keeps restarting

Click on “Fix Now” button and then sit back to relax to wait for the end of the fixing process for a moment. After that, you will be able to make use of your iPhone without any trouble.

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