How to Fix iPhone Keeps Restarting After iOS Update

Affiliate Disclaimer: If you purchase through links on our site, we may earn an affiliate commission at no additional cost to you!
Photo of author



After every major iOS update, a few bugs need to be worked out and features to be tweaked.

With the iOS update, we have seen a different type of bug arise – many iPhone users are reporting that their iPhone keeps restarting and trying to fix it for hours.

Some bugs can be bearable, but in this case, iPhone users aren’t able to use their iPhones, which is a fairly frustrating bug to deal with.

Now, there are a few basic things you can try with your iPhone to fix this, although we’re going to be discussing the best things you can do to try and fix your iPhone if it keeps restarting.

#1 – Hard Resetting an iPhone

Doing a hard reset is very simple, and you’ll often find that this is the fix to most iOS issues (aside from any hardware issues that there may be with your iPhone).

With a hard reset, you’re completely shutting down the iOS system and rebooting it – when you do a simple iPhone restart, the iOS system is only partially shut down.

Hard Resetting an iPhone

To Do a Hard Reset:

iPhone 6 and Lower. Hold the “Home” and “Power” buttons simultaneously for around 10 seconds until the Apple logo is shown. You can release both buttons when this logo appears, and a hard reset will occur.

iPhone 7 and Higher. Hold the “Home” and “Volume Down” buttons simultaneously for 10 seconds. When the Apple logo appears, release both of the buttons.

#2 – Reset All Settings

From time to time, you might change some of your iPhone’s settings. Whether you do this to improve the performance or you do it to improve your storage, you may change an important setting unknowingly, which could result in your iPhone keeps restarting.

The problem with this is that if you have changed a setting and didn’t know that it could cause the iPhone keeps restarting issue, you probably won’t know which setting to change.

One solution is to wipe your iPhone using the factory reset feature completely. Still, fortunately, there is an iOS feature that allows you to only reset the iOS settings without your personal data being affected.

To do this, follow our steps below.

#1 – Unlock your iPhone and tap on the “Settings” app.

#2 – Swipe down and tap “General” followed by “Reset.”

#3 – Tap on the “Reset All Settings” option and enter your iPhone’s passcode.

Reset All Settings on iPhone

#4 – After your iPhone restarts, all of your settings will be reset, and the issue should be fixed.

If this doesn’t fix your iPhone restarting error, then don’t worry. There are other options available.

#3 – Keep All Apps Updated

Many iOS apps run several background processes, and thus if an app has a bug that hasn’t been fixed but has been fixed in an update, it may be causing your iPhone to keep restarting, which could be the source of the error.

Keep All Apps Updated

Simply open up the app store and make sure that all of your apps are updated so that if there are any glitches or bugs with an app that have been patched in recent updates, the problem can be fixed and removed from your iPhone.

#4 – Remove and Insert SIM Card

This is definitely one of the less common fixes with modern phones. With older phones, especially those produced by Nokia, you could fix many problems by simply removing your SIM card and reinserting it a few minutes later.

With newer iPhones, to remove your SIM card, you have to insert a pin (or the metal clip from the box that your iPhone came in) into the SIM card slot on the side of your iPhone and push it.

Remove and Insert SIM Card to fix iPhone keeps restarting

With a little force, the SIM card tray will pop out, and the SIM card can be easily removed. After a few minutes, push the tray back into your iPhone, and with some hope, this should stop your iPhone keeps restarting issue.

Without overcomplicating things, this can help as it will disconnect you from your carriers’ network and reconnect you after it has been reinserted.

If there are any problems with the network connection, then this will help – if not, one of the other fixes should help.

#5 – Fixing iPhone Keeps Restarting with No Data Loss

In this next method, we will be showing you how to use Tenorshare ReiBoot to fix your iPhone keeps restarting issue.

Before we jump ahead and show you how to use this program, we will detail some of the main features that this program has to offer.

So, with all of these features in mind, if you haven’t had any luck fixing your iPhone with any of our other fixes, go ahead and try using Tenorshare ReiBoot. This incredibly effective program can fix virtually any iOS issue.

Steps to Fix iPhone Keeps Restarting with Tenorshare ReiBoot

#1 – Download and install Tenorshare ReiBoot on your computer.

#2 – Launch the newly installed program and connect your iPhone using a USB cable.

Tenorshare ReiBoot

#3 – From the main menu of Tenorshare ReiBoot, click on the “Standard Repair” option.

ReiBoot - Standard Repair

#4 – You will now be prompted to put your iPhone into either DFU Mode or Recovery Mode, both of which are suitable for this method.

Tenorshare ReiBoot

#5 – After you have entered your iPhone into either of these modes, the program will detect your device and be quickly scanned.

#6 – Once the short scan is complete, enter the relevant information into the boxes shown on your screen (e.g., iPhone model, serial number, iOS version, etc.).

#7 – After the information has been entered, click the “Download” button, and the required firmware will be downloaded.

Tenorshare ReiBoot

#8 – The firmware will be downloaded and used to repair your iPhone in just a few minutes.

Tenorshare ReiBoot
Tenorshare ReiBoot
Fix iPhone keeps restarting Using ReiBoot

This article may seem a little more complex than other methods, but it is by far the most effective. If you don’t have successful results with these steps, try repeating them, but instead of using “Standard Repair,” you should try using “Deep Repair.”

#6 – Restore Your iPhone Using iTunes

If you have tried using Tenorshare ReiBoot to stop your iPhone from restarting but haven’t been able to fix the problem, you can try a similar process using iTunes. While not as effective, it’ll get the job done.

#1 – Download and install iTunes on your computer, launch it when you’re ready, and connect your iPhone using a lightning cable.

#2 – Tap on the device icon at the top of iTunes and then on “Summary” from the left menu.

Restore iPhone with iTunes to fix iPhone keeps restarting

#3 – From the display shown, click on “Restore iPhone…”. A list of backups stored on your computer will be shown – select the most recent one.

#4 – Click on “Restore” after selecting the appropriate backup, and your device will be restored to an earlier state within a few minutes.

Again, it’s ideal that you use Tenorshare ReiBoot to fix this issue, but if you only have access to iTunes, you can use the steps above.

#7 – Visit an Apple Store

No luck so far? If none of the fixes we have walked you through in this article has yielded the results you expected, your best option is to get in touch with an Apple store and ask them to look at your iPhone for you.

There may be a hardware issue, and if this is the case, an Apple technician will fix it for you – on the other hand, it could be a simple fix they can get done for you in the store.


  1. Why does my iPhone keep restarting after the iOS update? Software glitches or hardware issues can often cause your iPhone to restart continuously after an iOS update.
  2. Can a forced restart fix the iPhone restarting issue? Yes, a forced restart often resolves the issue by refreshing your iPhone system.
  3. Will updating my apps help with the restarting issue? Yes, updating apps can often help if the problem is caused by app incompatibility with the new iOS.
  4. Should I check my iPhone battery? Yes, it’s recommended to check your battery health. If it’s low, it might be causing the restarting issue.
  5. When should I seek professional help? If all the methods mentioned above fail to fix the issue, it’s advisable to seek professional help.

To Conclude

We all experience some sort of iOS bugs from time to time, but recently, many iPhone users have had to worry about their iPhones keeps restarting, especially since the iOS update.

This is a major bug that should be fixed soon; however, if you are still encountering it after any of the recent iOS updates, take the time to try some of the fixes above and consider contacting an Apple store for help.


Skilled software testing specialist with expertise in comparisons and research, passionate about blogging, reviews, and creating video tutorials.

More Articles

BOOTMGR Is Missing
Repair, Windows

How to Fix the BOOTMGR Is Missing Error on the PC?

The BOOTMGR is missing is a quite common error message that occurs on the PC screens of so many users ...
SSD not showing up
Repair, Windows

SSD Not Showing Up? Here’s How to Fix It Quickly and Easily

Learn the reasons why your SSD is not showing up on your computer and get solutions to fix it. Update your driver and try other methods explained in this article.
iPhone Flashlight Not Working
iPhone, Repair

What to Do When Your iPhone Flashlight Is Not Working:

As an iPhone user, having a malfunctioning flashlight can be incredibly frustrating. The flashlight feature is something we often take ...