How to Fix Cannot Update to iOS 18? One-Step Solution!

by Jenefey Aaron   Updated on 2024-09-20 / Update for  iOS 18

If you are stuck with the annoying cannot update to ios 18 error, you are not the only one. It may be because of the lack of space in the device, software errors, or a network problem, but this guide offers one easy way of ensuring that your iOS device is on the latest version and running smoothly.

Part 1. Why Can't I Download iOS 18?

The following are the possible causes of the inability to ios 18 unable to check for update. These potential causes include:

Device Compatibility with iOS 18

The list of devices compatible with iOS 18 updates can be found on Apple’s official website. If your device is not on the list or is older than those on the list, you can't update to ios 18.

Insufficient Storage Space

If your device supports iOS 18 but can’t update because of low storage space on your iPhone, you will need to make some changes to free up some space. This can be done by deleting unwanted files and useless applications on the phone and disabling the Photo Stream if it has been activated on the device as well.

Unstable Network Connection

Your iphone won't update to ios 18 if it is not internet-connected. For the update, the device requires a broadband internet connection or any other with an appropriate speed.

Apple Server Issues and iOS Update Bugs

Sometimes, an iPhone's inability to update to iOS 18 may be caused by an Apple server failure or iOS update troubles. These can keep an iPhone from updating. This is especially true when iOS 18 is new, and some problems must be polished to the smallest detail.

Part 2. Fix Cannot Update to iOS 18! Download iOS 18 in One Click

If you encounter problems while upgrading your device to iOS 18, Tenorshare ReiBoot is the right tool to solve the problem quickly and efficiently. This powerful tool has been developed to deal with almost all iOS issues, including update issues, without causing data loss.

ReiBoot also comes in handy when downloading and installing a new iOS version, especially iOS 18, where you only need to click the button to update your device. Regardless of software issues, error messages, or other updates-related problems, ReiBoot is one of the best tools for bypassing these challenges and starting to use the updated iOS version.

Tool's Advantages and Main Features

  • You can quickly update your device to iOS 18 without performing complex troubleshooting.
  • It helps retain your data as it was before the update.
  • Cleans up problems that might be stopping your device from updating.
  • It is easy to use and understand with those with little or no knowledge.
  • Compatible with numerous iPhone and iPad models, thus offering high compatibility.

Specific Steps for How to Download iOS 18

To fix iOS 18 on your iPhone, follow these steps by using Tenorshare Reiboot.

  • Install Tenorshare ReiBoot on your PC after downloading it. Utilising a USB cord, link your iPhone to the computer. After launching the program, select "iOS Upgrade/Downgrade" from the menu on the main interface to get fixed on ios 18 not downloading.
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  • Press the “Upgrade” option.
  • install ios 18 beta
  • To download the most recent firmware package, click "Download." Tenorshare ReiBoot will look for the most recent iOS 18 firmware package on its own.
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  • It will appear that the upgrading has begun. Completing this will require a short while.
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  • Once it's completed, select Done. After installing the latest iOS 18, to fully overcome can't download ios 18, your iPhone will immediately restart.
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Part 3. Other Methods Try to Fix Cannot Update to iOS 18

These methods can also overcome the issue that ios 18 won't download updates to iOS 18. Here are some more approaches to assist you troubleshoot and fix the issue:

1. Check iOS 18 Supported Devices

Apple prioritises its users' stability by creating software for testing. Because of this, Apple typically restricts participation to its more recent models. They want to know the necessary adjustments and how the most recent version handles the devices.

Thus, you want to verify if the iOS 18 upgrade is compatible with your iPhone. We may assume that the iPhone 11, 12, 13, 14, and 15 series are compatible with iOS 18, as Apple hasn't made an official statement. This data is derived from trustworthy sources.

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2. Restart Your iPhone

Start with a straightforward and practical repair that resolves the issue in most situations: force restart. This resolves the short-term problems with your iPhone. This is how you do it:

  • Click and hold the Volume Up button, then swiftly let go of it.
  • Hold the Volume Down button briefly before releasing it.
  • Press and maintain the side button.
  • Let go of the side button when the Apple logo appears.
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3. Reset Network Settings

If the current network connection is problematic when updating an iPhone to iOS 18, resetting network settings may be needed to proceed.

  • Go to Settings/General/Reset/Network Settings to accomplish this.
  • Forget WiFi networks and keychains; reconnect to WiFi and try to install iOS 18 on the iPad. This method is ideal for iPhone users who have encountered problems with ios 18 not updating.
reset network settings

4. Ensure Sufficient Storage Space

Sometimes, your iPhone may not show the iOS 18 update because of insufficient space. In that case, you’ll have to clear up some storage space by following these steps:

  • Navigate to General > iPhone/iPad Storage under Settings. You can see which apps are occupying the most space here. The apps you haven't used in months can then be deleted or offloaded by simply touching on them and selecting "Delete App."
  • You should also consider removing lengthy, pointless videos.
  • Navigate to Settings > Safari > Clear History and Website Data to remove the cache and history from Safari to fix the issue regarding cannot update to ios 18.
offload apps on iPhone

5. Use iTunes/Finder to Download iOS 18

Another method for verifying the presence of new updates for your iPhone is through iTunes. To do so, follow these steps:

  • Open iTunes on your computer (Mac or PC) and plug your iPhone into the computer.
  • Once iTunes has identified your iPhone, find the device icon in the top left corner of the program's window and select the Summary tab.
  • Tap the “Check for Update. ” iTunes will detect that iOS 18 is available, and you can download it on your iPhone.
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Conclusion

Upgrading to iOS 18 should ideally be a seamless process, but there may be cases where one comes across one or the other issue. If you are experiencing problems that hinder you from using the new features in iOS, following the methods discussed in this article will help you to solve the problem.

Tenorshare ReiBoot is the most recommended app for a simple and efficient solution. Its one-click repair feature enables one to quickly repair update issues without losing data, making the device easily update to iOS 18 to get rid of from cannot update to ios 18. Say goodbye to those technical hitches—ReiBoot is here for you.