iPhone Keeps Turning On and Off? Check These 7 Solutions

Many iPhone users run into an issue where their device suddenly restarts and gets stuck in a loop. You may notice the screen going black, followed by a spinning wheel, before the phone turns back on again. This problem can be caused by a variety of factors, such as software glitches, incompatible apps, battery issues, or even water damage. In most cases, it is not a serious hardware failure, and you can fix it with a few simple fixes.

Before scheduling a repair appointment, it's worth trying the solutions in this guide to resolve the iPhone keeps turning on and off issue quickly and safely.

Why Does My iPhone Keep Turning On and Off?

If your iPhone is stuck in a boot loop where it keeps turning on and off repeatedly, it usually points to an underlying software or hardware issue. Here are the most common causes:

• 01 Battery health degradation: A weakened or aging battery may fail to deliver stable power, causing the iPhone to restart or shut down repeatedly, especially under load.
• 02 iOS system glitches or corrupted updates: A failed iOS update, system bug, or corrupted firmware can trigger a boot loop where the device continuously restarts.
• 03 Overheating issues: When the iPhone gets too hot, it may automatically shut down and restart as a protective mechanism, leading to repeated power cycling.
• 04 Storage problems or system overload: Extremely low storage or heavy system strain can cause instability in iOS, resulting in random reboots or startup loops.
• 05 Faulty apps or software conflicts: Certain third-party apps or background processes may crash repeatedly and force the system to restart.
• 06 Hardware malfunction: Internal component issues—such as a damaged battery, logic board failure, or loose internal connection—can cause continuous power cycling.
• 07 Water or physical damage: Exposure to moisture or physical impact can disrupt internal circuits, leading to unstable power behavior and repeated turning on and off.

Top 7 Ways to Fix iPhone Keeps Turning On and Off

After understanding the possible causes behind an iPhone that keeps turning on and off, the next step is finding the right solution. Below are the top methods you can try to fix the issue and get your device working normally again.

Fix 1. Force Restart Your iPhone

One of the most frequently asked question in this case is "why my iPhone keeps showing the Apple logo and turning off?" If you are unfortunately to experience this trouble presently, it might be helpful to try hard reset your iPhone firstly. Whether it's your iPhone won't charge, battery drain due to malicious processes or Wi-Fi or the devices keeps shutting down repeatedly, a hard reset can be a useful solution. The steps vary depending on the model of the iPhone:

For iPhone 8 and Newer:

• Step 1. Press and quickly release the Volume Up button.
• Step 2. Press and quickly release the Volume Down button.
• Step 3. Press and hold the Side (Power) button. Keep holding it through the black screen until the Apple logo appears, then release.

For iPhone 7 and iPhone 7 Plus:

• Step 1. Press and hold both the Volume Down button and the Side button at the same time.
• Step 2. Continue holding both keys until you see the Apple logo display on the screen.

For iPhone 6s and Older:

• Step 1. Press and hold both the Home button and the Top/Side button simultaneously.
• Step 2. Release both buttons the moment the Apple logo shows up.

Fix 2. Update the iOS to the Latest

An outdated operating system or an interrupted software patch can cause severe stability bugs, making your iPhone keep restarting. If your device can stay turned on long enough between reboots, installing the latest stable iOS firmware can patch the corrupted code.

• Step 1. Connect your iPhone to a stable Wi-Fi or cellular network, and plug it into a power source to make sure it doesn't shut down mid-process.
• Step 2. Open the Settings app, scroll down, and tap General.
• Step 3. Tap Software Update. Your device will automatically check for the latest available iOS version.
• Step 4. If an update is available, tap Update Now button to let the installation complete.
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Fix 3. Check Battery Health & Max Capacity

A chemically degraded battery cannot deliver consistent peak voltage. When the iPhone's processor spikes during startup or background tasks, a weak battery causes a sudden voltage drop, which triggers an automatic safety shutdown. This power delivery failure is a major reason why an iPhone keeps turning off randomly.

• Step 1. Navigate to Settings and scroll down to select Battery.
• Step 2. Tap on Battery > Battery Health.
• Step 3. Look at the Maximum Capacity percentage. If this number is below 80%, your battery is significantly degraded.
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Fix 4. Fix iPhone Keeps Turning Off Without Data Loss

If your iPhone is still in a state of keeping shutting off after updating your iOS operating system, you probably have to repair it in order to solve this issue. One of the most efficient and safe solutions is to try using a professional iOS repair utility and TunesKit iOS System Recovery is such an excellent one. It is powerful enough to help you fix iPhone keeps turning off problem as well as many other common iOS issues such as iPhone stuck on software update, iPhone won't turn on, white screen of death, stuck in the white Apple logo, etc.

The most important characteristic of this tool is that it will never cause any data loss while repairing your iOS system problem. It is compatible with a wide range of iPhone, iPad, and iPod touch models, including the latest iOS versions. In addition, it can help users enter or exit recovery mode for free with one click.

Next let's come to the detailed step-by-step guidance to fix iPhone keeps shutting off problem with the help of TunesKit iOS System Recovery. Please download the right version from the above link and install it on your PC or Mac, and then do so:

Step 1Connect iPhone to PC

Open TunesKit iOS System Recovery on your computer after finished installation and then connect your iPhone to the computer with a USB cord. When TunesKit detected the device, simply press the blue iOS System Repair button to initiate the program. Then click the Start button.

Step 2Choose A Mode

choose the Standard Repair to fix iPhone keeps turning off problem without data loss.

Step 3Download Firmware Package

Then you need to confirm your model information like name, iOS version NO., etc., and you can click the Download button at the lower right corner and TunesKit will start downloading the iOS firmware package matched to your device.

Step 4Fix iPhone Keeps Turning Off

Wait a while and when the download ends, you can then click the Start Standard Repair button to fix iPhone keeps shutting off problem with no data loss. Once the process is done, you can check your iPhone to see whether the problem is solved. If not, you can try it again and change to the Deep Repair to resolve it completely.

Fix 5. Factory Reset the Device (Erases All Content)

If you prefer not to use third-party software and are willing to sacrifice your unsaved data to fix the glitch, you can reset the phone to its factory default state.

• Step 1. Open Settings and tap on General.
• Step 2. Scroll to the absolute bottom and tap Transfer or Reset iPhone.
• Step 3. Tap Erase All Content and Settings.
• Step 4. Tap Continue, enter your lock screen passcode, and provide your Apple Account password to turn off Find My activation protection. The device will wipe itself and restart as a brand-new phone.
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Fix 6. Deep Restore via Computer (Recovery Mode)

If your iPhone keeps turning on and off so rapidly that you cannot navigate the Settings menu, you must force it into Recovery Mode and reload the operating system using a Mac or PC.

• Step 1. Connect your iPhone to your computer using a USB cable and launch the Finder (on macOS) or the Apple Devices app / iTunes (on Windows).
• Step 2. Put your iPhone into Recovery Mode with 1-click using TunesKit iOS System Recovery.
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• Step 3. A pop-up prompt will immediately appear on your computer screen. Click Back Up Now first if possible, then click the Restore button.
• Step 4. Follow the prompts to allow your computer to wipe the storage drive and reinstall a fresh, clean copy of the iOS operating system.
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💡 Extra Tip: Recovering Lost Data After an Unexpected Restore

If you were forced to restore your device to stop the infinite reboot cycle and discovered that you lost critical files due to a lack of backups, you can use TunesKit iPhone Data Recovery. This powerful data rescue utility scans your device directly or extracts files from old iTunes/iCloud backup caches. It can selectively retrieve up to 20 distinct data types—including photos, videos, encrypted WhatsApp histories, notes, and contacts—safely back onto your computer.

Fix 7. Contact Apple for Battery Replacement

If your phone continues to power down continuously even after a full computer restore, you are dealing with physical hardware failure. This is highly common if the iPhone keeps shutting off following a hard drop on the ground or accidental liquid exposure.

• Step 1. Check your warranty or AppleCare+ coverage status via the official Apple Support website.
• 
• Step 2. If you have coverage, a battery replacement or internal hardware diagnostic may be covered or heavily discounted.
• Step 3. Book an appointment at an official Apple Store Genius Bar or an Apple Authorized Service Provider. A technician will open the chassis to check for loose battery flex cables, short-circuited logic boards, or failing power IC chips.

The Bottom Line

It's all that easy! Hope the solutions provided in this guide may help fixing your problem of iPhone keeps turning off. If you have any questions about this issue, please feel free to leave comments below. And if any more fixes also work to solve the problem, let us know that as well. What's more, do not hesitate to download TunesKit iOS System Recovery to repair iOS problems as it's powerful with your data retained.