iPhone Randomly Restarts: Click for Reasons & 7 Fixes

"Why did my iPhone randomly restart? What is the cause, and how can I fix it?" If you find yourself asking such a question, then this article is your right destination. Read on as we discuss how to fix issues related to iPhone random restarts and their possible causes.

sofia albert
Sofia Albert updated on Sep 05, 2023 | Home > iOS & Mac Topics

iPhones are reliable, and with good care, they can serve you for many years. But just like other electronic devices, iPhones can malfunction and randomly restart. When an iPhone randomly restarts, it means that there's an underlying issue with your device. The experience is frustrating, especially if your phone restarts without any action on your part.

 "Why did my iPhone randomly restart?" Several reasons can cause iPhones to restart repeatedly, but there are ways to fix the problem. This article will discuss how to identify the possible causes of your iPhone restarting randomly. Keep reading to understand why and how to fix iPhone random restarts.

How to Fix iPhone Randomly Restarts [7 Ways]

If your iPhone randomly restarts, you need to find the right ways to fix it, or else you'll get bored using it. Your iPhone needs to be stable in use and only restart when you instruct it to do so. To fix "why did my iPhone randomly restart" issues, you can try out the following solutions:

  • Force restart iPhone.
  • Manage storage.
  • Reset all settings.
  • Update apps and iOS.
  • Eject and reinsert your SIM card.
  • Restore using iTunes.
  • Put your iPhone on DFU mode.

We'll discuss each method in detail as follows.

💡Fix #1. Force Restart iPhone

The quickest way to fix many problems, including a restart loop, is to force-restart your phone. It clears the memory and other apps running in the background that slow down your device. Follow these steps to force-restart your iPhone and fix the problem.

For iPhone 8 or Later:

Step 1. Press and swiftly release the Volume Up button.

Step 2. Press and swiftly release the Volume Down button.

Step 3. Next, press and hold the Side button until the Apple logo appears.

For iPhone 7:

Step 1. Press and hold the Power and Volume Down buttons for about 10 seconds.

Step 2. Release these buttons when the Apple logo appears.

For iPhone 6 or Earlier:

Step 1. Press and hold the Home and Power buttons for about ten seconds.

Step 2. When the Apple logo appears, release these buttons.

force restart

💡Fix #2. Manage Device Storage

When your iPhone's memory is running low, it can cause your device to keep restarting randomly. Follow these steps to manage and clear your device storage.

Step1. Go to iPhone Settings, then tap "iPhone storage."

Step 2. Look for apps you don't need and are taking up a lot of space. Uninstall them.

Step 3. Go to the media section and remove videos and photos that occupy a lot of space. If you still need your media files, create a backup on your PC or external hard drive.

iphone storage

💡Fix #3. Reset All Settings

Resetting all settings restores your iPhone to default or factory settings. This helps to resolve issues and return your phone to functioning normally. The following steps will help you reset your iPhone.

Step 1. Back up your iPhone's content before you start.

Step 2. Go to your iPhone Settings. Select "General."

Step 3. Choose the "Reset" option, then tap "Reset All Settings."

Step 4. A prompt will appear asking you to confirm "Reset." Confirm, and the process of erasing your settings will start. After resetting, your iPhone returns to factory settings and starts functioning properly.

reset all settings

💡Fix #4. Update All the Applications and iOS

Updating your iPhone with the latest iOS and applications helps to fix bugs and glitches. Check your apps and update them with the latest version, then follow these steps to update your iOS. 

Option 1. Use EaseUS MobiXpert

If you are looking for an efficient way to update your iPhone, then you can use EaseUS MobiXpert with the steps mentioned in this part. MobiXpert helps you update your iPhone without errors. After updating, your iPhone will be downloaded with an improved system. Then the problem of "iPhone randomly restarts" can be resolved.

First, download EaseUS MobiXpert on your PC or Mac and try to update the iOS with it.

Step 1. Open EaseUS MobiXpert on your computer. Select "System Repair."

MobiXpert hompage

Step 2. Then select "iOS Upgrade/Downgrade."

the home page of System Repair

Step 3. Select "iOS/iPadOS Upgrade" option.

select iOS/iPadOS Upgrade

Step 4. Then you will be prompted to connect your iPhone to the computer via a USB cable.

connect your device

Step 5. Confirm your device model and then click "Next" to download the firmware for an upgrade.

download the firmware

Step 6. Once the firmware is verified, click "Upgrade Now" to start.

click Upgrade Now

Step 7. Wait for the process to complete. Then click "Done" to close it.

the process is completed

Option 2. Through Settings

Step 1. Connect your iPhone to stable Wi-Fi.

Step 2. On your iPhone's settings section, tap "General."

Step 3. Next, move to "Software Update." If there is the latest version, select "Download and Install."

download and install

💡Fix #5. Eject and Reinsert SIM Card

A broken SIM card or connection issues can cause your iPhone to keep rebooting. Ejecting and reinserting your SIM card can help identify and stop the problem. Follow these steps.

Step 1. Open your iPhone's SIM card section and remove the SIM.

Step 2. Check to see if there's any damage.

Step 3. Try using your phone without a SIM. If the reboot loop stops, then the SIM card is causing the problem.

Step 4. Reinsert the SIM card and confirm if the problem is solved.

sim card

💡Fix #6. Restore iPhone Using iTunes

Some settings might be causing your iPhone to keep restarting. Erasing those settings using iTunes can help solve the problem. Below are the steps to restore your iPhone via iTunes. 

Step 1. Back up your iPhone's data before you start.

Step 2. Launch the iTunes application after connecting your phone to the PC.

Step 3. On the PC, click your phone and select "Restore iPhone."

Step 4.When a popup message asks to "update or restore" your iPhone, select "Restore."

Step 5. Click "Restore and Update" when the next popup appears. iTunes will erase all the data on your iPhone and then update it. This will take some time, so you'll need to stay patient.

click to restore and update

💡Fix #7. Restore iPhone via DFU Mode

You can consider switching to Device Firmware Upgrade (DFU) mode when all fixes have failed. DFU mode will erase all your content and repair your iPhone's issues. Follow these steps to restore your iPhone via DFU mode.

Step 1. Back up all your data before you start.

Step 2. Install the latest iTunes version on your PC.

Step 3. Connect the iPhone to your PC.

Step 4. Press and hold the Home and Sleep buttons for about ten seconds.

Step 5. Release the Sleep button while holding the Home button until the iPhone enters recovery mode in iTunes.

Step 6. Next, go to "Summary" and then "Restore iPhone." The restoration process will start, and it will fix the problem.

restore iphone

Why Did My iPhone Randomly Restart

When an iPhone randomly restarts, the problem can be software or hardware. If you're using an older iPhone model, it's likely to have memory issues and experience performance degradation. These are software-related issues. Users with newer iPhone versions can still experience iPhone random restarts. Some of the probable causes are bugs, rogue apps, and malware.

Another reason your iPhone restarts randomly is when you've just installed a new app from the Apple store. Although Apple thoroughly vets apps before they reach consumers, some apps might have minor issues. That makes it possible to experience a few glitches that cause your device to restart randomly.

Check if the problem started after you installed a new app. The new software could be causing the problem. Hardware issues can also cause your iPhone to restart on its own. Check to see if you might have dropped your phone or if it had an impact that damaged the internal parts. In the next section, we'll discuss how to fix iPhone restart randomly.

FAQs on iPhone Randomly Restarts

Here are some common questions about iPhone random restarts.

1. Why Did My iPhone Restart on Its Own?

An iPhone can randomly restart because of hardware or software issues. If your phone drops or is hit, it can damage some internal parts that cause it to keep restarting. A software problem can also cause random restarts. Other common causes include:

  •  Using an iPhone with outdated applications or old iOS versions.
  •  The iPhone's memory might be running low.
  • Some settings on your iPhone can cause the error.
  • Connection issues with your SIM card can cause the problem.

2. Why Is My iPhone XR Restarting on Its Own?

A possible reason for your iPhone XR restarting on its own is a declining storage space. Be sure to free up space on your device for it to work optimally. Also, a bug or malware attack could cause your iPhone to restart on its own. Consider updating your device to the latest iOS version to fix such issues.

3. Why Did My iPhone 11 Randomly Restart?

iPhone 11 can randomly restart due to performance issues. These issues can be related to software or hardware. Common symptoms include low memory, malware, or corrupt data. Following the simple laid-down steps discussed in this article can help you solve the problem.

The Conclusion

An iPhone randomly restarts when there's a software issue, outdated iOS, bugs, malware attacks, misbehaving apps or hardware issues. To fix the "why did my iPhone randomly restart issue”, you need to address these causes. This article has discussed various fixes, including force restarting iPhones, managing storage, resetting all settings, or updating software.

You can also remove and reinsert your SIM card, restore your device via iTunes or enter DFU mode. The easiest way to fix iPhone random restart issues is by force restarting it. However, when the basic solutions fail, you can try restoring via iTunes or entering DFU mode.