How To Fix iPhone XS/XS Max That Keep Restarting Randomly

On a nice day, if your iPhone keeps restarting randomly, it can drive you crazy. So, do you know what is causing this annoying issue? In fact, there are several things, such as outdated third-party apps, a software glitch, and other factors causing the random restart. In this post, we have listed several potential solutions to fix the random restart issue on your new iPhone XS/XS Max.

Solutions To Fix Keeps Restarting Randomly Issue On iPhone XS/XS Max

This issue can occur even when your iPhone is the latest model. It is not related to a specific model. Many iPhone XS/XS Max users have complained that their iPhone keeps restarting and shutting down randomly. Below are solutions you can refer to.

Hard reset your iPhone

Let’s start by trying one of the basic methods. Some minor glitches on your phone can be fixed just by a force restart. To do so:

  1. Press and quickly release the Volume Up button
  2. Do the same with the Volume Down button
  3. Finally, press the Power button on the side of your phone until it restarts.

Close apps running in the background

You should not skip this method since it might be very effective in some cases. Try it out before moving on to complicated ones. If you are using apps, but do not close them properly, then they will still run in the background. If there are too many apps running in the background, they can lead your iPhone XS/XS Max to randomly restart itself. To close the app completely, follow these steps below:

  • Swipe up from the bottom of your screen and pause a few
  • Scroll the app preview cards and swipe up each one to close it.

Once done, use your phone and check if the random restart issue on your phone is already gone.

Update apps on your iPhone XS/XS Max

As mentioned, the issue can relate to the apps on your iPhone. So, updating the apps can solve the problem. The update usually includes bug fixes which can be the main cause of the restarting randomly issue on your iPhone

To update the apps:

  1. Open the App Store on your iPhone
  2. Tap on Updates section on your iPhone
  3. Tap on Update All, if there are multiple app updates that need to be installed
  4. You can also choose which apps need to be updated one by one. Simply tap on Update button next to the app name.

Clear up the data of certain apps

The next thing you should do after updating the apps is to find your iPhone keeps shutting down and then turn on by itself. If the memory on your phone is full, it can affect the performance of your iPhone XS/XS Max. It will not run as smoothly as it should be and might get slower.

Also see: iPhone XS won’t turn on? Solutions to fix that

Steps to check which apps are taking up the most memory

  1. Head to Settings >> General >> Storage & iCloud Usage
  2. Under the Storage section, tap Manage Storage. From there, you will see the information about the storage space is already used and how much the storage is available. There is the list of apps under Available option and you can see the app that eats up the most battery.
  3. You should delete the apps that you no longer use. Next, decide which apps need to be removed to free up your iPhone memory.

Clear up the data

Remember to back up the data before clearing them up. You can do so for some apps only, including Photos, Safari, and Messaging.

Here is how to back up your iPhone data through iCloud

  1. Connect your iPhone to a stable Internet connection, so you should backup up process smoothly.
  2. Head to Settings >> iCloud >> Back Up
  3. In the BackUp screen, make sure the iCloud BackUp switch is On. If it’s not, toggle it on.
  4. Tap on Back Up Now, wait for the process to complete.
  5. To make sure the backup process is successful, simply head to Settings >> iCloud >> Storage >> Manage Storage. From there, you can see all the information about the last backup date.


  1. Open the Photos app on your iPhone XS/XS Max
  2. Tap on an album name
  3. Choose Select on the top-right corner and select photos you want to delete
  4. Tap on the trash icon at the bottom-right corner
  5. When the popup message shows up, tap on Delete Photos
  6. Tap on Recently Deleted album >> tap Delete All


Safari browser

  1. Head to Settings and scroll down to Safari app. Tap on it
  2. On the Safari screen, select Clear History & Website Data
  3. Tap on Clear History and Data again


  1. Navigate to Message app >> tap on Edit
  2. Check all redundant conversations by tapping on the circle on the left side and then choose Delete

Reset all settings

Sometimes, performing a Reset All Settings on your iPhone is also a good solution to fix software-related issues. All the settings will be restored to the factory defaults. The process will not affect any data, but all your customized settings will be adjusted after the process. To reset all settings.

  1. Head to Settings >> General >> Reset >> Reset All Settings
  2. Enter your passcode when prompted
  3. Tap on Reset All Settings again
  4. Your iPhone will reset all of its settings


Factory Reset Your iPhone XS/XS Max

If none of the prior solutions fixed the random restart on your iPhone, you should factory reset your iPhone. However, this method will remove all of your data like music, photos, and other settings. Remember to back up data using iCloud or iTunes before proceeding.


Don’t use this method if your iPhone is already jailbroken since you will be stuck at Apple logo.

  1. Head to General >> Reset >> Erase All Contents and Settings
  2. Enter your passcode when prompted
  3. Tap on the second line and your iPhone will reboot
  4. Wait for the process is done and you then simply set up your iPhone as a new device.

These are potential solutions to fix your iPhone XS/XS Max that keeps restarting randomly. If you feel this post helpful, let’s know in the comment below.