How to Fix iPhone Randomly Restarts

Most iPhone users face the situation where their iPhone randomly restarts. Although it could be a hardware issue, it is more likely that there’s some problem with the software. The software causes the iPhone to show unusual behavior.

Here are some of the effective troubleshooting ways that users can try if the problem is happening due to the software problem. Also, try to find out why your iPhone randomly restarts and see if the following methods work for you to stop the reboot process.

iPhone randomly restarts

Why Does Your iPhone Keep on Restarting?

When your iPhone keeps on restarting, it usually happens due to a software bug. However, that does not mean culprits such as nasty drops, cluttered storage, or problematic apps are less responsible for this problem.

Also, third-party certifications that apps install by deceiving iOS devices are another reason. On the other hand, charging is a usual suspect, where your iPhone randomly restarts due to a faulty charger.

Now, it’s time to know about some of the most effective solutions to get rid of the issue.

PS: here, you will learn more about how to fix the iPhone Won’t Charge error with ease.

Method 1: Fix ‘iPhone Randomly Restarts’ Using Tenorshare ReiBoot without Data Loss

If you come across this problem, use third-party tools if you like to solve the issue in an easier manner. These applications are useful as they specialize in resolving such system-related problems.

One such amazing tool is Tenorshare ReiBoot. This recovery tool helps your device to come out of such software problems, such as when your iPhone randomly restarts. Look for its special features right below!

Unique Characteristics of Tenorshare ReiBoot:

  • It provides a 100% success rate for fixing lots of system issues on iOS devices.
  • Tenorshare ReiBoot even fixes the ‘iPhone randomly restarts’ problem without data loss effectively.
  • The tool is very easy to use, and thus, no technical knowledge is required to use it.
  • There’s no requirement to worry about the tool’s authority, as lots of famous media websites have recommended and trusted Tenorshare ReiBoot.

Steps to Resolve the ‘iPhone Randomly Restarts’ Problem:

Before you begin, you need to download the software. It works perfectly well with iOS 14, iOS 15, and others. After that, you can follow some simple steps given below.

Step 1: Firstly, launch the tool on your system and then select the mode ‘Standard Repair‘. Now, connect your device to your system. Once the tool detects your device, tap on the ‘Fix Now‘ tab.

Tenorshare ReiBoot
Tenorshare ReiBoot
Tenorshare ReiBoot

Step 2: Now, you might require to download the recent firmware for fixing your iOS device. To do this, tap on ‘Download‘. The software will begin downloading the firmware package.

Tenorshare ReiBoot

Step 3: Tenorshare ReiBoot will start fixing your device after it has downloaded the firmware. After some minutes, your iPhone will restart normally, and you won’t be seeing the problem ‘iPhone randomly restarts‘ anymore.

Fix iPhone randomly restarts Using Tenorshare ReiBoot

Method 2: Restore Your iPhone via iTunes to Fix ‘iPhone Randomly Restarts’

Another effective method to restore your iOS device is through iTunes. This could resolve the issue as it deletes all the settings and contents present on your device. There might be some settings, which might be causing your device to restart randomly. However, you would like to back up your iPhone before performing all this as all your device data will be deleted.

Step 1: Initially, connect your device to the system and launch iTunes on it.

Step 2: Tap on your device once it shows up in iTunes. After that, select the ‘Restore iPhone‘ option.

Restore your iPhone via iTunes

Step 3: Choose a relevant backup, and next, tap on ‘Restore‘. Now, keep your iPhone connected when it restores.

Restore your iPhone via iTunes

Method 3: Update the iOS Software of Your iPhone

Sometimes, an iOS update arrives with lots of bug fixes. So, when you update the iOS, it could eliminate issues like ‘iPhone randomly restarts. For doing this, connect your device to Wi-Fi and a power source. After this, you can go through the following instructions.

Step 1: In the first place, navigate to ‘Settings‘ on your device and then click on ‘General‘ and then, ‘Software Update‘.

Step 2: Your iPhone will look for new iOS updates. If you found one, tap on ‘Install‘ for starting installing the iOS update on your device.

Step 3: Once the process is complete, your iPhone will restart. Most probably, the issue will get resolved. If not, move on to the next solutions to succeed.

Update the iOS Software of your iPhone

Besides, click here to learn everything about iPhone activation lock bypass jailbreak and figure out how to fix IMS Service Has Stopped with ease.

Method 4: Force Restart the Rebooting Device to Fix ‘iPhone Randomly Restarts’

Another effective method that you could try when you come across an iOS issue is hard resetting. It is an easy procedure that could resolve various minor problems, such as the iPhone randomly restarts.

● For iPhone 13/12/11 Pro (Max)/11/XR/XS (Max)/X/8 Plus/8

Press and un-hold the ‘Volume Up‘ key and repeat the same procedure with the ‘Volume Down‘ key. Next, hold down the ‘Wake/Sleep‘ tab till you see the Apple logo on the screen.

Force Restart the Rebooting Device

● For iPhone 7 Plus/7

Press and hold the ‘Wake/Sleep‘ and ‘Volume Down‘ keys simultaneously until you come across the Apple logo on the phone screen.

Force Restart the Rebooting Device

● For iPod Touch/iPad/iPhone 6S/6 and Previous

Hold the ‘Wake/Sleep‘ and ‘Home‘ tabs at the same time until you see the Apple logo on the screen.

Force Restart the Rebooting Device to Fix iPhone Randomly Restarts

Once done, check if your device still restarts randomly on its own. If yes, then try the next method to resolve the issue.

Method 5: Remove and Reinsert Your SIM Card

iPhone keeps on restarting when the connection of your device to the wireless carrier faces an issue. The most reliable and easiest method to resolve the connection problem is by removing your SIM card. After that, just it back.

Initially, you have to shut down your iPhone. Next, pop out the tray using an ejector tool that usually comes with the device in its box. Now, remove the card and reinsert it after waiting for some time.

Remove and Reinsert SIM Card to Fix iPhone Randomly Restarts

Method 6: Examine if Apps Sre Causing the iPhone to Restart

There could be some applications that mess with the system and trigger problems. Examine the recently used applications or running applications, specifically third-party ones. Now, close all applications or uninstall the application that could be creating this problem.

So, iOS features a function called Analytics for diagnosing problems. It looks for the problematic areas after carrying out a thorough test. This feature helps you to look for the culprits.

For this, visit ‘Settings‘ on your device and then tap on ‘Privacy‘. From there, click on the ‘Analytics & Improvements‘ feature and then select ‘Analytics Data‘.

Examine if Apps are causing the iPhone to Restart

After scrolling through the list, find the applications that have been repeatedly listed. After that, remove those apps from the phone to resolve the problem.

Examine if Apps are causing the iPhone to Restart

Method 7: Get Rid of the Outdated Applications

Another common reason can be outdated applications as they tend to generate lots of problems like when your iPhone randomly restarts. These applications would not just cause the device to crash unexpectedly but even affect your device’s overall performance. So, if your phone has some outdated applications that have not received updates in a while, make sure you delete them.

iOS 13 or Later

In these versions, there are various methods to delete an application. The easiest method is to press and hold the application and then click on ‘Delete‘ from the popup. Now, hit ‘Delete‘ again for confirming your action.

iOS 13 or Later

iOS 12 or Earlier

Press and hold the application. Now, press the tab ‘X‘ and tap on the ‘Delete‘ button to get rid of that outdated application.

Method 8: Update All Applications to Fix ‘iPhone Randomly Restarts’

Most applications get frequent updates for both bug fixes and performance improvements. An effective way to keep the applications updated is to use the feature ‘Automatic Updates‘. You will find the option ‘App Updates‘ under the section ‘iTunes & App Store‘ in ‘Settings‘.

Update All Applications

You can even update the applications manually whenever you like. For this, go to ‘App Store‘ and then click on ‘Your Profile‘ and then press ‘Update All‘ for updating all the installed applications on your device at once. This could resolve the ‘iPhone randomly restarts‘ problem.

Update All Applications to fix Fix iPhone Randomly Restarts

Method 9: Clean Up the Device to Fix iPhone Randomly Restarts

If still your iPhone randomly restarts, cleaning up your entire phone may fix the issue. Cluttered storage or corrupt files could be the culprit behind this problem. Before you move further, make sure that you have a backup of all the important files. Also, be careful while deleting unnecessary files from the device.

However, cleaning up RAM would help in resolving this issue is not certain. Along with that, it is best to delete third-party certifications installed on the device. For this, visit ‘Settings‘ on your phone and click on ‘Profile & Device Management‘. Now, delete those certificates.

Method 10: Reset All the Device Settings

Another thing that you can try to resolve the issue of ‘iPhone randomly restarts’ is to wipe off the present settings. After resetting your device, it would come back to the default condition. It could help in eliminating common issues.

So, to resolve the problem, you have to navigate to ‘Settings‘ on the device and then click on ‘General‘. Next, you have to tap on ‘Reset‘ and lastly, hit the ‘Reset All Settings‘ option.

Reset All the Device Settings to Fix iPhone Randomly Restarts

Method 11: Look for a Hardware Issue

When your iPhone randomly restarts, it could be due to a hardware issue. Repeated drops can even put your device on the boot loop. If you have dropped your device recently, then it could be the reason behind this problem. Apart from that, worn-out batteries also result in issues. In that case, you have to replace your worn-out or faulty battery.

If your iPhone randomly restarts when charging, ensure that your lightning port is dirt-free. The debris, dirt, or pocket lint pile up over time and could prevent your phone from charging. So, you have to clean the gunk and lint stuck in the port and then charge your device. If the issue still persists, then try charging the phone using another cable.

Though a third-part service charges a bit less, it is better to visit Apple Support. So, if you do not mind giving some extra dollars for trusted solutions, then contact Apple to get the issue fixed.


Now, you know what you have to do if your iPhone randomly restarts. If it’s a software-related issue, then Tenorshare ReiBoot is an ideal solution. You can try out other methods like the ones stated above too. Try them out to find the most reliable solution for yourself. If none of these methods work for you, then your iPhone randomly restarts because of a hardware issue. So, the right thing to do is to contact Apple Store and ask them to examine the issue. They will help you in resolving this annoying issue effectively and efficiently.


Ten years of experience in information and computer technology. Passionate about electronic devices, smartphones, computers, and modern technology.