How to Solve if iPhone Keeps Turning on and off

Campbell Adams | Apr 24, 2022

5-year smartphone engineer, with rich experience in iOS software issues. He presents the most actionable solutions for readers in the most easy-to-understand manner.

  • iPhone turning on and off is a common iOS issue. It results from software glitches, battery issues, low storage to hardware damage, etc.
  • Software crash is 99% the problem, especially if your battery and charging components are fine and there are no visible signs of physical damage.
  • You should first perform a hard reset. If it doesn’t work, try deeper types of restore with iTunes, or with iTunes alternatives like Perfix.
  • There are many system errors iTunes can't fix, but professional iOS repair tool Perfix can.

A malfunctioning iPhone denies you access to everything. I know you are worried, but there's no need to rush to an Apple Store right now (Yes, I know how inconvenient that can be!). First, identify the root cause of your iPhone issue.

iPhone keeps turning on and off

iPhone keeps turning on and off

Why my iPhone keeps turning on and off?

Unless it's a hardware problem, you stand high chances of fixing your iPhone at home easily.

System crashes: Maybe an iOS update has failed, or maybe a data transfer is interrupted, etc and hence the issue. (The most common)

Malware/Virus Attack: Did you install an app from an unreliable source, or click something malicious? This will make your iPhone vulnerable, resulting in a reboot loop. (Less common)

Jailbreaking: Did you jailbreak your iPhone? If so, your iPhone's functionalities may be disrupted and it keeps turning on and off. (Less common)

Unstable Driver: Did you recently make some changes on your iPhone? That may lead to a malfunctioning driver and hence the reboot loop issue. (Rare)

Hardware Problem: An inner component may be damaged, like the motherboard, power button, etc. (Very rare)

iPhone keeps turning on and off. Here are the real fixes!

Given hardware damage happens rarely, and is hard to detect and repair, I'll start with solutions related to software glitches, malware, jailbreaking, and driver, which are much easier and quicker to troubleshoot.

Repair iPhone with Mobitrix Perfix in 30 Mins (99.9% Works)

If you urgently need to turn your iPhone back on, then Mobitrix Perfix should be your first option. It is an effective iOS system repair tool that can fix over 1000 iOS issues without data loss such as iPhone frozen, black screen. It comes in handy when your iPhone keeps turning on and off. It is much more user-friendly than iTunes and has a 95%-99% guaranteed success rate.

With Mobitrix Perfix, you will be able to effectively sort your issue with a few steps. The steps to follow include:

  1. Install Mobitrix Perfix on your computer and launch the program.
  2. Connect your iPhone to the computer.
  3. Once your iPhone is detected, select “Standard Repair”.
Launch Mobitrix Perfix

Launch Mobitrix Perfix

With Perfix, you get to enjoy all these conveniences in getting your iPhone fixed.

  • You can have the certainty that 99% of the time, your iPhone issue will be fixed.
  • Unlike iTunes and other tools which take up to hours, Perfix repairs your iPhone in 30 minutes.
  • You don't need to install iTunes or Finder on your computer.
  • All your iPhone data is protected and kept secure during the process.
  • It only takes 2 simple steps to fix your iPhone.
  • All iOS versions and models are supported.

By now, you should have fixed your iPhone. If interested, you can also read on to see if what the Apple methods are like, though they may be more time-consuming with lower success.

Fix your iPhone with Apple Methods (30% Works but More Time-consuming)

Method 1. Force Restart Your iPhone.

With this method, you will be able to solve the issue of your iPhone shutting down rapidly or battery draining quickly when connected to a Wi-Fi connection. To force restart your iPhone follow the steps below:

  • iPhone 6S and earlier models: Long press the Home button and Power button until you see the Apple logo disappear and reappear on the screen, then release.
  • restart iPhone 6 series and earlier iPhone models

    restart iPhone 6 series and earlier iPhone models

  • iPhone 7: Long press buttons for volume Down and Power until the Apple logo disappears and reappears on the screen.
  • restart iPhone 7 series

    restart iPhone 7 series

  • iPhone 8 or newer models: Press volumn Up button and then volume Down button. Finally press the Side button till you see the Apple logo.
  • restart iPhone 8 series and later iPhone models

    restart iPhone 8 series and later iPhone models

Method 2. Restore your iPhone with iTunes

iTunes is the official way recommended by Apple. It can be used in two ways as explained below.

Using iTunes via Recovery mode:

To use iTunes, you can put your iPhone into Recovery mode. Once your iPhone goes into Recovery mode you can connect it to your computer and select “Update” on the prompt to update or restore your iPhone.

Note: Your data won’t be erased in this way.

Using iTunes via DFU Restore:

Another way you can use iTunes is with DFU Restore. The steps below will guide you:

iphone connected with itunes using dfu mode

  1. Install the latest version of iTunes on your Mac or PC.
  2. Use a lighting cable to connect your iPhone to the computer.
  3. Restart your iPhone. You can check in this article how to restart your iPhone on the Hard Restart section.
  4. Go to “Summary” then select “Restore iPhone”.

The difference with these two iTunes ways is, with DFU Restore, all your data will be lost but the steps to follow are the same, except that at the fourth step, you restore with DFU and Update with iTunes.

However, iTunes is very clunky on all platforms. Firstly, many people are just confused about how to use it. Secondly, it crashes a lot. Sometimes, it even cannot recognize your iPhone. Moreover, it takes a very long time to restore your iPhone. Therefore, many users simply quit using iTunes even it helps sometimes. In such cases, using a professional repair tool seems a better choice, as users can save a lot of time and inconveniences.

Method 3. Update out of date apps

Having apps that are out of date can also cause your iPhone to restart severely. So installing those pending updates can help you fix your iPhone and prevent it from turning on and off. To do this:

  1. Open your app store.
  2. Scroll down to the bottom section and select “updates”.
  3. Next to each app that is listed, click on “Update” to update them individually or tap on “Update All” to update them all.

Thereafter you can restart your iPhone to apply the changes that you've made.

Method 4. Update iOS system

waiting for activationg iphone software update

New iOS versions are developed to fix some issues in the existing versions or to improve on them. When your iPhone keeps turning on and off, updating its iOS system may help.

You can check for available updates by going to Settings > General > Software Update and install them(if any) on your iPhone.

Other Simple Fixes

Or sometimes, it could be a battery or charging issue that makes your iPhone keep turning on and off. You can try some other simple ways to repair your iPhone.

Method 1. Check Your Battery Health

Force to restart under DFU Mode - iPhone6 and earlier versions

Your iPhone functions best when its battery is at the “Peak Performance”. If something goes wrong with your iPhone’s battery capacity, your iPhone’s performance will be affected too.

Go to Settings > Battery > Battery Health. If you find “Maximum Capacity” very low, then the problem could be with your device battery. You may need to get it replaced soon.

Method 2. Drain Your iPhone’s Battery and Charge Your iPhone

If your iPhone is switching off rapidly because of battery problems, you can first let your iPhone battery drain completely. Although it may take a lot of time to do this, be patient and let it shut down. After that, plug it into the socket by using a charging cable and let it be fully charged.

Then you can check if it still shuts down. If not, it means your problem is solved. Otherwise, proceed to other solutions.

Method 3. Free up memory space

unintall apps

Having limited memory space may cause your iPhone to turn off and on rapidly. You can free up memory space by uninstalling unused apps. To check your storage space go to Settings > General > Phone storage.

If your storage is less than 1 GB, you can go ahead and uninstall apps you haven't been using.

Some other iOS versions like 13 and 14 will automatically uninstall those apps for you, but for other versions, you can check for yourself and uninstall them so that your iPhone can run smoothly.

What if all methods above have failed?

Method 1. Contact Apple for assistance.

Once you realize that the above methods cannot solve your issue, you can visit a local Apple store or authorized Apple service center to get assistance. They will repair or replace your iPhone at zero or little cost, if your iPhone is in warranty.

Method 2. Go to a nearby repair shop

If your iPhone is no longer in warranty, you can take it to a nearby repair shop and have your iPhone fixed at a cheaper price than at an Apple service.


To sum up, I've introduced various methods you can use when your iPhone keeps turning off and on. All have been tested to be effective by me and my clients, however, Perfix is most recommended if you want no hassle, no hours' waiting, and no tech difficulties in getting your iPhone fixed. It is easy and effective with just few steps involved. It also supports all kinds of iPhone models.

In case that you encounter similar or other iOS issues later, you can always count on Perfix as it fixes almost all your iPhone problems.