How to Fix an iPhone that Keeps Shutting Down?


There is nothing more irritating than to see your iPhone dying each minute. Whatever we want to do from communication to entertainment, we are dependent on our smartphones. When the iPhone keeps on shutting down for no reason, then it undoubtedly gets  very annoying.

What are the causes behind this accidental shut down?

Several things are there that can cause this issue. It can happen due to some water damage and faulty apps. In several instances, the reason is the battery. Many methods are there through which one can know if the problem lies within the battery. You will get to know about many issues after going through this article. Follow these easy steps to fix iPhone.

Hard resetting the iPhone

Restart the iPhone if you are facing this problem of random shutting off. There is a special kind of restart needed here, known as hard resets. Hard reset is entirely different from the normal reboot because it resets the operating system deeply. If the issue lies within the app, then follow the below-given steps to clear the problem.

  1. There is a slight difference in steps based on your iPhone type:
  2. If there is “iPhone 8” and “iPhone X” then tap and clear sound up switch.
  3. Tap and release volume down button.
  4. Tap and hold side button.
  5. If you are having iPhone 7 then just hold down volume down and the Side button altogether.
  6. Moving towards the remaining models, press the Home switch given below and the on/off/side switch altogether.
  7. Just hold it till screen goes dark.
  8. You will see the Apple logo now.
  9. Release the button and let your iPhone startup usually.

How to Update Operating System of iPhone

In some instances, iPhone shuts down randomly; the issue is with the operating system. Update to the latest version if hard reset isn’t working well.  Two ways are there through which one can update to most recent version.

Updating iOS on the iPhone wirelessly.

Updating iTunes to the newest way.

  1. Click Settings.
  2. Click Notifications.
  3. Click on each of the apps that have been listed in the particular section.
  4. Move the allow notifications to white.
  5. Now update the operating system.
  6. When you are done with the update and phone has been started again.
  7. Repeat 1st and 2nd steps.
  8. Now turn off the notifications.
  9. Check the health of your battery. (iOS 11.3 and Up)

If your iPhone is running iOS 11.3 or higher. There is a feature that is designed primarily for pinpointing battery issues. Two pieces of information give two pieces of information- Maximum charging capacity of battery and battery’s strength. If you want to see the battery of your phone then go through these steps:

  1. Click Settings.
  2. Click battery.
  3. Click Battery Health.

The menu of Maximum capacity will show total charging capacity of the battery. Higher will be better. If Maximum Maximum battery is showing up at low, then it can be a sign of battery issue.

Peak performance capability is going to tell you if the phone’s performance is decreased due to the battery. It can be a sign that battery is infected. Health section of the battery is going to tell you if it has been replaced.

Using DFU, restore iPhone from the Backup

When iPhone shuts down unexpectedly then take a further step. DFU restore. It means Disk Firmware Update. It sets up a fresh installation of all sort of software on iPhone. You will need a computer with iTunes installed. Follow the steps given below after that:

  1. Plug in iPhone to the system through USB.
  2. Tap Back Up now for making up a backup of iPhone from iTunes window.
  3. Keep your phone to DFU mode now; it will depend on the type of your phone.

If you have an iPhone X and iPhone 8, simply tap and release volume up button, volume down, then tap and hold the side button again. Press the top button for some time and tap and press the volume button when the screen goes black. Wait for some time, release the side button but keep holding volume down. Leave the button when iPhone appears in iTunes.

At the similar time, tap and hold on/off button for iPhone7. If you recognise any window saying iTunes detected an iPhone then release volume down button. When your phone screen turns out to be black, then you are in DFU Mode.

Steps are similar for all the models as for iPhone 7. The only difference is that at the place of volume down button, you have to hold down on/off switch.

Edward Lewis is a Microsoft Office expert and has been working in the technical industry since 2002. As a technical expert, Edward has written technical blogs, manuals, white papers, and reviews for many websites such as office.com/setup.