iOS 16 Not Installing, How to Fix? (Works on 16.4, 16.5)

With the release of iOS 16.6, many iOS users are eager to update their devices and take advantage of the all-new personalization features in iOS 16. However, there might be instances where your device fails to download or install the software, resulting in an error message such as “Software Update Failed” or “An Error Occurred Downloading iOS 16”. But don’t worry, we’re here to help! In this comprehensive guide, we will explore the reasons behind the software update failure and provide you with practical solutions to fix the iOS 16 software update failed issue. Let’s get started!

What Causes iPhone Software Update Failed?

There are several reasons why your iOS 16 software update may fail:

Insufficient Storage Space

One of the main reasons for a failed software update is insufficient storage on your device. If you don’t have enough space to download and install iOS 16, the update process will fail. To resolve this issue, you need to free up some storage space on your iPhone by deleting unnecessary files and apps.

Incompatible Device

If you’re attempting to install the latest iOS version on an unsupported iPhone model, you will encounter an error message and the update will fail. Make sure to check if your device supports iOS 16 before attempting to update.

Poor Internet Connection

A stable internet connection is crucial for a successful software update. If your internet connection is weak or unstable, the download process may take longer or fail altogether. Ensure that you are connected to a reliable Wi-Fi network before initiating the update.

Low Battery Power

Before updating your software, it’s essential to ensure that your iPhone is fully charged. If your device runs out of battery during the update process, it can cause the update to fail. Connect your iPhone to a power source or charge it to at least 50% before attempting the update.

Apple Update Server Issues

Sometimes, your device may face difficulties connecting to the Apple update server, leading to a failed software update. This issue is usually temporary and can be resolved by checking the Apple System Status page to see if there are any ongoing server issues. If there are, try updating your iOS a few hours later when the server is less crowded.

Interruption during Update

If the software update process is interrupted or your iPhone shuts down unexpectedly, it can result in a failed update. Ensure that your device remains powered on and connected to a stable power source throughout the update process to avoid any interruptions.

Now that we’ve identified the potential causes of software update failure, let’s explore some basic checks you can perform before diving into more advanced solutions.

4 Basic Checks to Fix iOS 16 Update Failed

Before diving into more technical solutions, it’s worth performing these basic checks to troubleshoot the iOS 16 software update failed issue:

1. Check the Internet Connection

Ensure that you have a stable and reliable internet connection before initiating the software update. Close any other apps or processes that may be consuming your internet bandwidth to ensure a smoother download experience.

2. Check the iPhone Storage Space

Verify that you have enough storage space on your iPhone to accommodate the iOS 16 update. Delete unnecessary files, apps, or media to free up storage and create room for the update files.

3. Check the Apple System Status

Before attempting the update, it’s advisable to check the Apple System Status page to see if there are any ongoing server issues. If the update server is experiencing high traffic or undergoing maintenance, it could lead to a failed update. Wait a few hours and try updating again when the server is less congested.

4. Restart Your iPhone and Try Again

Restarting your device is often an effective solution for resolving various software-related issues, including failed updates. Here’s how you can restart your iPhone:

1. After encountering the “Software Update Failed” message, click the ‘Close’ button or ‘Remind Me Later’ to return to the home screen.
2. Press and hold the power (side) button for approximately 3-5 seconds until a window appears on the top of your screen.
3. Slide the power-off bar from left to right to turn off your device.
4. Wait for about 10-15 minutes after your device is completely switched off.
5. Press the power button again to power on your device. Continue holding the button until the Apple logo appears on the screen.
6. Once your device reaches the Lock screen, unlock it and attempt the software update again.

If the basic checks mentioned above fail to resolve the issue, don’t worry. We have two advanced methods that can help fix the iOS 16 software update failed issue.

2 Advanced Ways to Fix iOS Software Update Failed

If the basic troubleshooting steps didn’t work for you, these advanced methods can help resolve the software update failure.

Update iOS 16 with Tenorshare ReiBoot

If you’ve exhausted all other options and are still unable to update to iOS 16, Tenorshare ReiBoot can be a reliable solution. This software allows you to update your iPhone with just one click, without the risk of data loss. It can also fix various common iOS 16 update problems. Follow these steps to update iOS 16 using Tenorshare ReiBoot:

1. Download and install Tenorshare ReiBoot on your computer.
2. Launch the software and connect your iPhone to your computer using a USB cable.
3. Select the “Standard Repair” mode from the main interface.
4. Download the firmware package corresponding to your iOS software version. Tenorshare ReiBoot will automatically download it for you.
5. Click the ‘Start Standard Repair’ button and wait for the process to complete. Your iOS system will be updated to the latest version.

Update iOS 16 with iTunes

If the previous method didn’t work for you, updating iOS 16 using iTunes can be an effective alternative. Follow these steps to update iOS 16 with iTunes:

1. Install the latest version of iTunes on your computer and launch it.
2. Connect your iPhone to your computer using a USB cable. iTunes will automatically recognize your device.
3. Click on the “Summary” tab in iTunes.
4. Check for updates within iTunes and click the download and update button that appears on your screen.
5. Follow the on-screen instructions to complete the update process.

By following these advanced methods, you should be able to resolve the iOS 16 software update failed issue.

Conclusion

Encountering a software update failure can be frustrating, but with the techniques shared in this comprehensive guide, you can resolve the issue yourself. Ensure that you have a stable internet connection, sufficient storage space, and a charged battery before attempting the update. Restarting your iPhone can also help resolve minor issues. If all else fails, consider using advanced methods such as updating with Tenorshare ReiBoot or iTunes. By following these steps, you’ll be able to successfully update your iPhone to iOS 16 and enjoy its new features. Remember, if you encounter any difficulties during the process, Tenorshare ReiBoot is always there to assist you with its user-friendly interface and reliable solutions. Happy updating!