[Top 10] Fix iPhone Stuck in Boot Loop After iOS 27 Update

Updating to iOS 27 can bring new features, but it may also cause problems if the update fails or is interrupted. Some users may find their iPhone stuck in a boot loop after the iOS 27 update, with the Apple logo appearing repeatedly or the device restarting without reaching the Home Screen.

In this guide, we will explain why this happens and show you 10 practical ways to fix iPhone boot loop after iOS 27 update, starting with no-data-loss methods first.

Why Is Your iPhone Stuck in Boot Loop After iOS 27 Update?

An iPhone boot loop after the iOS 27 update is usually caused by a failed or interrupted update process. In most cases, it is a software-related issue, but hardware problems can also be involved. Here are the common reasons:

• Interrupted iOS 27 update: The update may fail if your iPhone shuts down, loses connection, or gets stuck during installation.
• Low storage space: If your iPhone storage is almost full, iOS may not have enough space to install or restart properly.
• Low battery or unstable power: A weak battery or sudden power loss during the update can cause the system to fail.
• Weak Wi-Fi or computer connection: An unstable network or USB connection may interrupt the iOS 27 update.
• Corrupted update file: The downloaded iOS 27 file may be incomplete or damaged.
• iOS 27 beta bugs: If you installed an iOS 27 beta, system bugs may cause boot loop, freezing, or update failure.
• Jailbreak or modified iOS: Jailbroken devices are more likely to face system conflicts after a major update.
• Hardware damage: If your iPhone was dropped, exposed to water, or has a weak battery, the boot loop may be hardware-related.

Top 10 Methods to Fix iPhone Reboot Loop After iOS 27 Update

Now that we understand the causes of your iPhone issue, here are 10 effective methods to fix an iPhone stuck in a boot loop. First, let's watch a short video.

Start with no-data-loss methods first. Use Restore or DFU Mode only if safer fixes fail.

Method	Best For	Difficulty	Data Loss Risk
Force Restart iPhone	iPhone keeps restarting after iOS 27 update due to a temporary system glitch	Easy	No
Charge iPhone	iPhone restarts during or after the iOS 27 update because of low battery or unstable power	Easy	No
Update iPhone via Recovery Mode	iPhone is stuck on the Apple logo or boot loop after iOS 27 installation	Medium	Usually no, if you choose Update instead of Restore
Free Up Storage	iPhone can still turn on, but storage is almost full after or before the iOS 27 update	Easy	No
Reset All Settings	iPhone restarts after iOS 27 because of wrong settings or minor system conflicts	Easy	No personal data loss, but settings are reset
Install the Latest iOS 27	iPhone can open Settings and a newer iOS 27 patch is available	Easy	No
Use TunesKit iOS System Recovery	iOS 27 update failure, recovery mode loop, or repeated boot loop after basic fixes	Easy	No, in Standard Repair mode
Restore iPhone	iOS 27 cannot be reinstalled with Recovery Mode Update	Medium	Yes, it erases iPhone data
DFU Restore	Severe iOS 27 update failure or failed Recovery Mode restore	Hard	Yes, it erases iPhone data
Contact Apple Support	Boot loop may be caused by battery, water, drop, or hardware damage	Medium	Depends on repair type

Method 1. Force Restart Your iPhone

TA force restart is the first method you should try when your iPhone is stuck in a boot loop after the iOS 27 update. It can help fix temporary system glitches without erasing your data. Follow the steps below based on your iPhone model:

• For iPhone 8 and later: Quickly press and release the Volume Up button, then quickly press and release the Volume Down button. Press and hold the Side button until the Apple logo appears.
• For iPhone 7/7 Plus: Press and hold the Side button and the Volume Down button at the same time. Release both buttons when the Apple logo appears.
• For iPhone 6/6S or earlier: Press and hold the Home button and the Side/Top button at the same time. Release both buttons when the Apple logo appears.

Method 2. Charge iPhone and Check Cable / Battery

A low battery, unstable power supply, or faulty charging cable may cause your iPhone to restart repeatedly. This is more common on older iPhones or devices with poor battery health.

Connect your iPhone to a reliable power source and charge it for at least 30 minutes. Use an Apple-certified cable and adapter if possible. If your iPhone stops restarting while charging, the problem may be related to the battery or power connection.

You can also check Settings > Battery > Battery Health if your iPhone can still turn on. If you see a service warning or the maximum capacity is very low, consider replacing the battery or contacting Apple Support.

Method 3. Update iPhone via Recovery Mode

To fix iPhone reboot loop, you can put your iPhone into Recovery Mode and update it with a computer. This method can reinstall iOS without erasing your data if you choose Update instead of Restore.

Step 1: Connect your device to the computer and Open Finder on Mac, Apple Devices on Windows, or iTunes on older computers.

Step 2: For iPhone 8 or later, quickly press and release the Volume Up button, quickly press and release the Volume Down button, then press and hold the Side button until the recovery mode screen appears.

Step 3: Click the Update button in Finder, Apple Devices, or iTunes. It will reinstall iOS without erasing data. Wait until the process comes to end.

Method 4. Free Up Storage If You Can Access Settings

If your iPhone can still turn on for a short time, check whether the storage is almost full. Low storage can make iOS unstable and may cause repeated restarts.

Go to Settings > General > iPhone Storage. Delete unused apps, large videos, offline downloads, or old files to free up space. After that, restart your iPhone and check whether the boot loop stops.

Method 5. Reset All Settings If iPhone Can Stay On

Resetting all settings on your iPhone may also solve the issue. This method is simple to operate. It will not erase your personal data, but it will reset Wi-Fi, VPN, keyboard, location, and other system settings. Follow the quick steps below.

• Step 1. Open your iPhone and go to the Settings > General.
• Step 2. Tab the Transfer or Reset iPhone > Reset >Reset All Settings to complete the process.

Method 6. Install the Latest iOS 27 Patch If Possible

If your iPhone can still turn on and open Settings, check whether a newer iOS 27 patch is available. Apple may release small updates to fix bugs found after a major iOS update.

Go to Settings > General > Software Update. If an update such as iOS 27.0.1 or iOS 27.1 is available, tap Update Now to install it. Make sure your iPhone has enough battery, stable Wi-Fi, and enough storage before starting.

This method is only useful if your iPhone can stay on long enough to access Settings. If it keeps restarting before you can open Settings, try Recovery Mode Update instead.

Method 7. Fix iOS 27 Boot Loop with TunesKit iOS System Recovery [No Data Loss]

If your iPhone is still stuck in a boot loop after the iOS 27 update, the problem may be caused by a deeper system error. This can happen when the update fails, the iPhone gets stuck on the Apple logo, or the device enters a recovery mode loop.

In this case, you can try TunesKit iOS System Recovery before restoring your iPhone. Its Standard Repair mode is designed to fix common iOS issues, including iOS 27 update failure, iPhone boot loop, Apple logo stuck, and recovery mode loop, without erasing your data.

For more serious system problems, TunesKit also offers Deep Repair mode. However, Deep Repair may erase your iPhone data, so use Standard Repair first and make sure you have a backup before trying advanced repair.

Next, I'll show you how to get rid of iPhone boot loop via TunesKit iOS System Recovery step by step.

Step 1Select Repair Mode

After downloading and installing TunesKit iOS System Recovery on your computer correctly, open it and then connect your iPhone to the computer. Select the iOS System Repair option and press the Start button once the device is detected, after that set the repair mode as Standard Repair mode from the 2 options offered. Click the Next to continue.

Step 2Download iOS Firmware Package

Firstly make sure that the device info displaying on the window is right, correct it if any data is wrong. Then you may need to tap the Download button to download the latest firmware package and verify it quickly.

Step 3Fix iPhone Restart Loop Without Data Loss

When the program completes downloading, you will see the Repair button, just click on it to start fixing the iPhone boot loop. There's one thing you need to keep in mind, which is to remain your device connecting to the computer during the repairing process in case that some unexpected issues may occur.

Method 8. Restore iPhone via Finder, Apple Devices, or iTunes

There's another way to break the iPhone boot loop status which is to rely on Finder on Mac, Apple Devices on Windows, or iTunes on older computers to restore your iPhone. By doing so, you'll erase all data from the device. Please make sure that you've backed up all important data on your iPhone before taking this method. Now let's take a look at how to use iTunes/Apple Devices to get your device out of boot loop status.

• Step 1. Connect your iPhone to your Windows computer via a USB and launch iTunes or Apple Devices. Ensure that the app installed on your computer is the latest version.
• Step 2. Click on the device icon from the top of the interface.
• Step 3. Find the Summary tab and then press the Restore iPhone button. Wait for iTunes to download the latest iOS if your iPhone is running an older version.

For Mac users on macOS Catalina and higher, the Finder replaces iTunes, so let's see how you can use the Finder to restore your iPhone.

• Step 1. Connect your iPhone to your Mac using a USB data cable.
• Step 2. In the Finder, select your device from the sidebar.
• Step 3. In the button bar, click on General.
• Step 4. On the main screen, click the Restore iPhone button.

Method 9. Restore iPhone in DFU Mode

If Recovery Mode does not fix the iPhone boot loop, you can try DFU Mode Restore. DFU mode is a deeper restore mode that can help repair serious iOS system problems. However, this method will erase all data on your iPhone, so only use it as a last resort. Make sure you have a recent backup before continuing.

Connect your iPhone to a computer with a USB cable. Then open Finder on Mac, Apple Devices on Windows, or iTunes on older computers. Put your iPhone into DFU mode according to your iPhone model. When your computer detects the device, choose Restore to reinstall iOS.

Method 10. Head to Apple's Support Center

If this issue still exists after trying all the 9 methods given above, then your device may have a hardware problem. If your iPhone was dropped, exposed to water, has poor battery health, or still boot loops after software fixes, contact Apple Support or visit an authorized repair center. As is known to us all, any incorrect hardware changes may lead to the malfunction of your device. Once repaired, your iPhone will be able to reboot and run in a normal state.

FAQs About iPhone Boot Loop After iOS 27 Update

The Bottom Line

Most iPhone boot loop issues after an iOS 27 update are caused by failed installation, low storage, unstable power, or system errors. Try no-data-loss methods first, including force restart, Recovery Mode Update, and TunesKit iOS System Recovery Standard Repair. Use Restore, DFU Mode, or Apple Support only when safer methods fail.