Why Does My iPhone Randomly Restart? How to Fix the Issue?

Although an iPhone is best known for its grand services, sometimes it can misbehave and iPhone keeps restarting is one of the issues! We know Apple users love using iPhones and trust them like nothing else. Therefore it can be very frustrating when the iPhone randomly restarts

iPhones can pick up the restarting problem randomly and so suddenly that users never get any clue before it happens. That is why it is difficult to find the exact reason why your iPhone randomly restarts. Though there can be two common reasons – 1. Software-related bugs or malware or 2. Hardware issues like, a damaged battery, fallen from a height, or water got inside the phone!

If your iPhone keeps restarting and you are completely unable to use your phone then you should go straight to the hardware solution given in the later part of the article. However, if your phone restarts after you are able to use it for a time being then you should quickly check out the following fixes and try to come out of the iPhone restarting problem!

When your iPhone keeps restarting after a certain time and lets you use the phone for a while, meaning that you have its software access, then you should try the following solutions!

1. Update or Delete The Buggy App

Although iOS devices rarely catch viruses, it is somehow possible when you install a buggy app or update a faulty version of the app or keep using the same version app for a long time. If a faulty app is a concern for your iPhone restarting randomly, then you should be aware of what exactly caused this problem. 

Is it because you have recently got the problem after installing a new app or updating a version of it? If yes, then you should delete the app asap! 

To delete an app from your iPhone:

  • Press on the app logo and hold until the options pops up on your iPhone’s screen.
  • Tap on the Remove App option.
  • Tap on the Delete App option to confirm deleting the app. You can redownload it by visiting your Apple Apps Store.

Furthermore, if you are using an older version app for a long time, it might clash with your iPhone’s system software. That’s why you should update the app manually if it has not been updated automatically.

To Update an App on your iPhone:

  • Open the Apple App Store app.
  • Open your Account icon from the upper right corner.
  • Under the Upcoming Updates category, choose Update All.
  • Or choose the app that you think is causing the issue and update that only.

Note that a problematic buggy app can cause many problems with your iOS devices. Among them, your iPhone’s apps keep crashing, iPhone’s battery is draining and it is getting hot over facetime are some of the major problems. But no worries, we have all the solutions for you, HERE!

2. Manage Storage of your iPhone

If your iPhone is running on low storage or low spaces due to a lot of audio, video files, photos, and apps, it can be a cause of random restarts. Therefore you should free up some space from your iPhone by deleting unused apps or unimportant media files. You can delete older and unimportant messages and clear all their history as well.

In case of emergency make sure you backup your iPhone before deleting any content.

3. Update the System Software

The latest version of the iOS system plays a huge role in the performance of your iPhone. If you are using an older version of the OS then it might slow down your iPhone’s performance. So you should always keep your phone up to date with the latest system software. 

To Update your iPhone’s latest software version:

  • Open the Settings app and open General.
  • Open Software Update.
  • If there are multiple updates available, update the latest one.
  • Tap on the Install Now option to start the installation process.

4. Reset All Settings

Reset All Settings is an instant solution for recovering many issues of iPhones, iPods, or iPads. This option does not bother your phone’s existing contents or memory, it just resets all settings and helps refresh any bugs or glitches.

To Reset All Settings on your iPhone:

  • Open the Settings app and open General.
  • Scroll down and open Reset.
  • Tap on the Reset All Settings option and if asked confirm by entering the passcode.

5. Identify the Kernel Panic

iPhone randomly restarts can be caused by a kernel panic because of any software or hardware issues. Many iPhone 13 PRO users recently seem to have this issue after the iOS 15.1.1 update. Therefore you should identify if your iPhone is having a kernel panic which ultimately causes your phone to restart randomly!

To identify the Kernel Panic on your iPhone:

  • Open the Settings App.
  • Open Privacy.
  • Open the Analytics & Improvements option.
  • Next open the Analytics Data.
  • Scroll down and check whether there is a file named “Panic Full”.

If you find such a file, then undoubtedly your iPhone is having a kernel panic, which can be caused by a software or a hardware issue. If it happened because of a software issue then you are lucky. Because you can just backup your iPhone and then go for a complete wipe. Restart your phone after wiping all data and content and use it as a new one. This action works well and should stop random restarts of your iPhone.

6. Restore iPhone using iTunes

Your iPhone needs to be restored before you give it a complete wipeout in order to prevent random restarts. If you restore your iPhone using iTunes, it will back up your device’s all contents and settings.

To restore your iPhone using iTunes:

  • Connect your iPhone with your computer or laptop.
  • Next, open the connected iTunes app on your PC or Laptop and tap on the Device Logo from the top-left corner.
  • Click on the Summary option.
  • Tap on the Backup option before you restore your device.
  • Then click on Restore and follow the instructions shown on your screen.

After restoring your device successfully using iTunes, you can have all the content and history back in your phone after a repair and use it the way it was before.

7. Erase All Content from your iPhone

The last software-related solution that you can try to solve your iPhone’s random restart issue is erasing or getting rid of all content and settings. This way can be very effective in removing any system glitches or software bugs from your iOS devices.

To Erase All Content from your iPhone:

  • Open the Settings app.
  • Open General.
  • Scroll down and open Reset.
  • Tap on the Erase All Content option.
  • Enter the passcode if you are asked and confirm erasing all content.

How to Fix an iPhone that Keeps Restarting? 3 Best Hardware or Manual Solutions!

When your iPhone enters a boot loop that means it just keeps restarting or its screen is flickering and won’t let you have any scope to use it, it’s time for some hardware-related solutions!

1. Hard Reset or Factory Reset

When you are unable to use your iPhone’s software because it keeps restarting, then you should give it a hard reset or factory reset using its buttons. The procedures of hard or factory reset varies from device to device, all are mentioned below!

To force restart an iPhone 6, iPhone 6s PLUS or iPhone SE (first-gen):

  • Long press and keep holding the power button and home button at the same time.
  • Wait until the Apple logo appears on the screen and release pressing after that.

To force restart an iPhone 7 or iPhone 7 PLUS:

  • Press the volume down and the power button at once and keep pressing them until the apple logo appears on your iPhone’s screen.
  • Then release all the buttons and wait and check if your iPhone automatically restarts. That’s the sign of a successful reset.

To force restart an iPhone 8 or newer devices:

  • Press and quickly release the volume up button, then do the same with the volume down button as well.
  • Next press and hold the power button and keep holding it until the apple logo appears on the screen.
  • Lastly release it and wait to see if your phone restarts on its own.

After a successful hard or forced reset of your iPhone, it is expected to solve many issues of the device. Unfortunately, if it does not, then try out our next solutions.

2. Enable DFU Mode

The Device Firmware Upgrade or DFU mode is an amazing way to fix many internal issues or bugs in your iPhone. So in order to fix random restarts of your iPhone, you should enable the DFU mode after restoring your device and having all the backup (highly recommended).

To enable the DFU mode manually on iPhone 6 or iPhone 6s PLUS or earlier devices:

  • Continuously press and hold the home and power button at once for about 8-10 seconds
  • Then release the power button and continue holding the home button for about 5 seconds more.

For enabling DFU mode on iPhone 7 or 7 PLUS devices:

  • Press and hold the power button and volume down button continuously for 8-10 seconds at once.
  • Release the power button but continue pressing the volume down button for 5 seconds more.

For Phone 8 and earlier versions of iPhone:

  • Connect your iPhone with computer or laptop devices.
  • Press the volume up button first and quickly release it. And immediately, press the volume down button and release it quickly as well.
  • Then press and hold the power button and wait until the screen turns black.
  • Long press the volume down and power button at the same time for about 5 seconds.
  • Release the power button only but keep pressing the volume down button for 5 seconds more.

If a black screen appears, then the DFU mode is successfully enabled. Now iTunes will detect your device as in recovery mode. In order to exit from the DFU mode, simply restart your phone or go for the force restart, as mentioned above.

3. Remove your SIM Card

A broken SIM card may cause connection issues with the phone’s carrier, provoking it to randomly restart. Though this is very rare. But you can have a try by removing your iPhone’s SIM card and check whether it stops entering the booting loop. If it stops restarting randomly, then put the SIM card back and check the mobile or cellular connection.


We understand the immense gloominess of the users whose iPhones, iPads, or iPods start to keep restarting without any breakage or warning. Thus we have come up with the above-mentioned fixes and we strongly hope that you have found your desired solution from there. Lastly, we suggest you backup your phone, if you are going for hardware repair or software updates, or any of the solutions above. In addition, unfortunately, if you still encounter the random restarts issue with your iPhone then consult the Apple services for repairing.

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