9 Simple Ways to Fix the iPhone Keeps Restarting [Ultimate Guide]

"My iPhone SE keeps restarting every 2 minutes and won't let me update it. I have cleared storage, but the problem hasn't stopped."

- from Apple Community

Won't iPhone stop restarting on its own? It's unusual and frustrating that an iPhone keeps restarting every 5 minutes. But don't worry. Here are some useful techniques that will effectively remove the error before asking for Apple's help.

Part 1. Why Does My iPhone Keep Restarting by Itself?

Before attempting a fix, understanding the common causes of iPhone keeps restarting after update can help you choose the most appropriate solution. The following are some possible reasons:

* Interrupted or faulty iOS update causing system file corruption.

* Insufficient storage space preventing the system from running properly.

* Incompatible or crashing third-party apps causing system errors.

* Battery aging or unstable power supply triggering frequent restarts.

* Incorrect settings or system configuration conflicts leading to instability.

Part 2. How to Fix iPhone Keeps Restarting Randomly?

How do I get my iPhone out of a restart loop? Below are the top nine methods to troubleshoot the iPhone that keeps restarting. As some of them cannot avoid causing data loss on your iPhone, we strongly recommend you take a full backup of your iPhone before continuing. You can refer to the tutorials to back up your iPhone to a computer or external hard drive.

Solution 1. Force Restart the iPhone

If the iPhone keeps restarting in a loop, you can force restart the device to break the cycle. Here's how:

On iPhone 8 or later:

• Press and quickly release the "Volume Up" button.
• Press and quickly release the "Volume Down" button.
• Press and hold the "Side" button until the iPhone reboots.

On iPhone 7/7 Plus: Press and hold the "Volume Down" + "Power" buttons together to restart the device.

On iPhone 6 or earlier:

• Press and hold the "Home" + "Power" buttons simultaneously for 10 seconds.
• Release the buttons when the iPhone vibrates and reboots.

Solution 2. Check and Free Up iPhone Storage Space

A lack of storage space is a surprisingly common reason why an iPhone keeps restarting. When the system doesn't have enough free space to operate, it may crash and reboot repeatedly.

Here is how to free up iPhone storage space:

Step 1. Open "Settings" > "General" > Tap "iPhone Storage".

Step 2. Check available storage (at least 5–10 GB is recommended).

Step 3. Delete unused apps, large videos, photos, or cached data.

Solution 3. Delete Recently Installed or Suspicious Apps

If your iPhone keeps restarting after installing or updating an app, that app may be incompatible with your current iOS version or contain critical bugs. To fix the iPhone that keeps restarting, you can uninstall the problematic apps. Here are the steps:

Step 1. Identify apps installed or updated recently.

Step 2. Press and hold the app icon.

Step 3. Tap "Remove App" > "Delete App". (Can't delete the app on iPhone?)

Step 4. Restart your iPhone and monitor its performance.

Solution 4. Update iOS System

The iPhone may keep restarting due to crucial bugs or incompatibilities in the current iOS version. So, you can check whether your iPhone runs the latest iOS version to resolve the problem.

Here is how to do it:

Step 1. Open the "Settings" app on your iPhone.

Step 2. Tap "General" > "Software Update" > tap the "Download and Install" button if a newer version is available. (iPhone won't update?)

Solution 5. Remove the SIM Card

Since the improper installation of a SIM card will also bring about the issue "iPhone keeps restarting itself on Apple logo", you can eject the SIM card to fix the error.

Your iPhone will reconnect to your service carrier once you put the SIM card back into the tray. And you won't lose anything from the SIM card.

Solution 6. Reset All Settings

If incorrect system settings or configuration conflicts are causing your iPhone to keep restarting, resetting all settings can restore system stability without deleting personal data.

Here is how to reset all settings on your iPhone:

Step 1. Open "Settings" > "General".

Step 2. Tap "Transfer or Reset iPhone".

Step 3. Choose "Reset" > "Reset All Settings".

Step 4. Enter your passcode to confirm.

Solution 7. Restore iPhone Using iTunes

When software corruption becomes severe, restoring your iPhone through iTunes can reinstall the entire iOS system. However, this method erases all data, so it should be used only after backing up your device.

Here is how to fix an iPhone that keeps restarting using iTunes:

Step 1. Connect your iPhone to a computer and open iTunes (or Finder on macOS).

Step 2. Get your iPhone in Recovery mode:

On iPhone 8 or newer:

• Press and quickly release the "Volume Up" button.
• Press and quickly release the "Volume Down" button.
• Press and hold the "Power" button until the Recovery-mode screen (Connect to iTunes icon) displays.

On iPhone 7/7 Plus:

• Press and hold the "Power" + "Volume Down" buttons together for seconds.
• Release them when the Recovery-mode screen appears.

On iPhone 6 or older:

• Press and hold the "Home" + "Power" buttons simultaneously.
• Release both buttons when the Recovery-mode screen shows.

Step 3. Choose the "Restore" option when it asks you to "Restore" or "Update" your iPhone.

Step 4. Finish restoring your iPhone with the on-screen prompts.

Solution 8. Use iOS System Recovery

If your iPhone keeps restarting and you want to fix the issue without losing data, professional iOS system repair software offers a safer alternative to iTunes restoration. iOS System Recovery is one such tool. It can repair reboot loops, system crashes, and other iOS issues while preserving your data.

The key features of iOS System Recovery:

* Fix your iPhone to normal without data loss.

* Apply to over 32 sorts of iOS system errors: loop restart, battery drain, red/blue/black/white screen of death, stuck on Apple logo/DFU mode, etc.

* Upgrade and downgrade iOS to the supported version.

* Easy, safe, and reliable.

* Work with the latest iPhone 17 series and iOS 26.

Free Download for PC

 

Free Download for Mac

How do I fix the iPhone that keeps restarting without data loss? Follow the steps below:

Solution 9. Contact Apple Support

When your iPhone keeps restarting even after trying all the above methods, the issue is likely related to hardware failure, such as battery degradation, logic board problems, or internal component damage. In these cases, further troubleshooting on your own may not resolve the problem and could potentially make it worse. Contacting Apple Support or visiting an authorized service provider allows trained technicians to run professional diagnostics, identify the exact cause, and provide official repair options that ensure your device's safety and long-term stability.

The Bottom Line

We hope the above solutions will work to resolve the iPhone keeps restarting error. If you want a fast and easy way to fix your iPhone to normal without data loss, please adopt iOS System Recovery and follow our instructions step by step. It is more worthwhile and time-saving than visiting the Apple Store.

If you have any queries to let us know, please leave a comment below at your earliest convenience. Afterward, we will reach out to you as soon as possible.

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