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How to fix an iPhone 7 Plus that keeps crashing and shutting down unexpectedly after updating to iOS 11.4.1 [Troubleshooting Guide]

Random to frequent crashes or unexpected shutdowns are usually occurring among the wear-and-tear symptoms in mobile devices. Such problems often instigate in high-end smartphones after several months or over a year of constant usage. These symptoms are already expected as the device performance becomes degraded especially when the memory is shrinking. Nevertheless, the same symptoms may also occur unexpectedly at an early stage because of some factors.

Among the usual triggers are memory errors, malware, data corruption, and faulty updates, to name some. Even the highest-tiered devices like the iPhone 7 Plus can succumb into such problems unexpectedly especially after installing an iOS update. And this is the main issue tackled in this context. Read on to learn what to do if your iPhone 7 Plus suddenly keeps crashing or shutting down after installing iOS version 11.4.1 update. While these are only generic solutions, these methods have already done wonders to those who have dealt with the same post-update issues on their respective iOS devices. Hope you’ll find this post useful.

Now, before anything else, if you have other issues with your phone, make sure you drop by our troubleshooting page for we have already provided solutions to hundreds of problems reported by our readers. Odds are that we may have already provided a solution to the problem you currently have so try to find issues that are similar with yours on that page and feel free to use the solutions we suggested. If they don’t work or if you need further assistance, fill up our Android issues questionnaire and hit submit to contact us.

First solution: Quit background apps.

Rogue apps are usually the main reason as to why a device would act up after installing a new software update. Background apps are usually the culprits. These are apps that were recently opened but not closed during the system update. Any of these background apps may have become corrupted and crashed after the update installation. When apps are in this state, there’s a tendency that the entire system operations becomes adversely affected. To clear this out, forcing background apps to quit is recommended. Here’s how it‘s done:

  1. Press the Home button twice quickly. Doing so will launch a new screen containing a list of recently used apps that aren’t closed.
  2. Swipe up on an app’s preview to clear or force close individual apps.

Do the same to end the rest of your background apps.

Second solution: Soft reset/force restart your iPhone 7 Plus.

A soft reset or device restart can also be considered an option if the problem is the problem is attributed to minor software errors and glitches. Restarting the iPhone also dumps cache and temporary data from the internal memory including those that were corrupted from the update and triggered these symptoms to surface. To soft reset your iPhone 7 Plus, follow these steps:

  1. Press and hold the Power button for a few seconds until the Slide to Power Off command appears.
  2. Then drag the power off slider to the right to shut down your iPhone completely.
  3. After 30 seconds, press the Power button again until the Apple logo appears.

Alternatively, you can do a force restart if the usual reboot can’t be carried out. Here’s how:

  1. Press and hold both the Power button and Volume Down button for at least 10 seconds.
  2. Then release both buttons when the Apple logo appears.

Both these methods won’t affect any data and personal information stored on the internal memory. That said, creating a backup beforehand won’t be necessary.

Third solution: Install pending app updates on your iPhone 7 Plus.

Installing pending updates for your apps can also be the key to resolving the issue if it’s triggered by app’s malfunction. Apps usually get updates soon before or after a new iOS version is rolled out to keep them ready to blend with the new platform changes. If you haven’t set your apps to auto-update, then you will need to manually check for and update apps from the App Store. Here’s how:

  1. Tap the App Store icon from the Home screen.
  2. From the App Store main screen, tap the Updates icon at the bottom right. A list of apps with pending updates then shows up on the screen.
  3. Tap the Update button next to an application to update apps individually or tap the Update All button on the upper right of the screen to install all pending app updates at once.

Reboot your iPhone when all apps are finished updating. Doing so will ensure that all new app changes are properly implemented and thus, prevents any app or the device itself from going rogue.

Fourth solution: Reset and restore factory settings on your iPhone 7 Plus.

Among the last options to consider if the problem continues after performing the previous methods would be a factory reset or master reset. This will erase all information stored on the internal memory including settings, apps, messages, contacts, and customized settings. Should there be any bugs and malware that caused your device to act up, these should likewise be cleared in this reset. Just be sure to back up all critical data beforehand so you still can recover them later, when needed. Then follow these steps to factory reset your iPhone 7 Plus through settings menu:

  1. Tap Settings from the Home screen.
  2. Tap General.
  3. Scroll to and tap Reset.
  4. Select the option to Erase all content and settings. This will delete all information, apps, customized settings, messages, contacts, and other saved data from the phone.
  5. If prompted, enter the correct passcode for your iPhone to continue.
  6. Then tap the option to confirm master reset.

You can also reset your iPhone through iTunes. In this case, you will need to secure a computer with the latest version of OS and iTunes software installed. This should be considered an option if factory reset through settings isn’t possible. The same positive results can be obtained from either resets.

Fifth solution: Restore your iPhone 7 Plus in iTunes.

For persistent software issues that could not be remedied by a factory reset, performing a recovery mode restore would be the next option to consider. This will reset and restore iOS while your device in recovery state. To get this done, you will need to use iTunes on a computer. Here’s how:

  1. Connect your iPhone to your computer using the supplied USB cable or Lightning cable.
  2. Then open iTunes on your computer. Be sure to use the latest version of iTunes app to avoid system conflicts and software incompatibility issues.
  3. While your iPhone is connected, perform a force restart but don’t release the buttons when the Apple logo appears. Instead, wait until the Connect to iTunes screen appears and then release both buttons. To do so, press and hold the Power and Volume Down buttons simultaneously and then release both buttons when you see the Connect to iTunes screen.
  4. After this screen, you will be prompted with an option to Restore or Update. Select Restore then follow the rest of the onscreen instructions to restore your iPhone in recovery mode through iTunes.

If these symptoms persist after performing a recovery mode restore, then you may try carrying out the deepest type of system restore, which is called DFU (Device Firmware Update) mode restore. In this mode, your device would be able to communicate with iTunes on a computer even without activating the bootloader or operating system. This is usually needed when your iPhone system becomes totally corrupted from the recent system transition.

You can find a step-by-step guide on how to perform a DFU mode restore on an iPhone 7 Plus on our tutorials section. Just visit our troubleshooting page for more information.

Seek more help

You may escalate the problem to your carrier or Apple Support for other options and recommendations. Let them know of what exactly had transpired and how your iPhone 7 Plus ended up crashing and shutting down unexpectedly. A fix patch may be necessary to address the issue once confirmed inflicted by the recent iOS update. Otherwise, your iPhone may require service. Your device may have obtained some sort of physical or liquid damage and the symptoms have coincidentally surfaced after installing an iOS update. In that case, taking your iPhone to an Apple-authorized service center would be an option.

Connect with us

If you need more help with the use of certain functions and features of the Apple iPhone 7 Plus smartphone, feel free to visit our Tutorial Page. There you can find a list of how-to contents, step-by-step tutorials, as well as answers to FAQs regarding iPhone 7 Plus. If you have other concerns or encountered some troubles while using the phone, you can reach us through this form. Just be sure to tell us more details of the problem or device issue(s) you may have and we will be more than happy to assist you further.

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