iOS 17/18 Unable to Download? 5 Proven Ways to Fix iPhone Can't Update to iOS 17/18

Updating to the newest version of iOS is an important part of keeping your iPhone secure and up-to-date. As such, it is important to be aware of any potential issues when upgrading from iOS 17 to iOS 18.

This article will discuss several common causes and solutions for iPhone/iPad can't update to iOS 17/18. Apple have release iOS 18 but some users claim that unable to install iOS 18. We will also provide tips on ensuring a successful update with the most powerful fixes available. We will provide a professional tool to help fix iOS 17/18 unable to download/unable to install iOS 18 and fix why can't i update to ios 17/18, helping you update your device to iOS 17/18 quickly and easily.

Part 1: iOS 18 Release Date: When Is iOS 18 Available for Download?

Apple has announced that iOS 18 is available for download on September 16th. The release of iOS 18 comes several months after it was initially unveiled at Apple's Worldwide Developers Conference in June.

Part 2: Why iOS 17/18 Unable to Download and Why Can't I Get iOS 17?

There are several reasons why can't I download iOS 17/18 and unable to install iOS 17/18. These possible causes include:

  • iPhone isn't supported by iOS 17/18

    • According to Apple's official website, only certain devices are supported for iOS 17/18 updates. If your device is not on the list or is an older model than those listed, you cannot upgrade to iOS 17/18.

    If you are experiencing any of these issues, take steps to resolve them before attempting another upgrade attempt.

  • Insufficient Storage Space On iPhone to Fix Unable to Install iOS 17/18

    • If your device is supported for iOS 17/18 but cannot install the update due to insufficient storage space on your iPhone, it may be necessary to take some steps to free up space. This can be done by deleting unnecessary files and apps no longer in use. It is also recommended to turn off Photo Stream if it has been enabled on the device.

  • Unstable Network Connection

    • The transition from the previous subtopic to unstable network connection is that insufficient storage space and an unstable network connection can prevent an iPhone user from updating to iOS 17/18. To successfully update, the device must have a b internet connection with low latency and packet loss.

  • Apple Server Failure/iOS Update Bugs

    • Occasionally, the reason why you can't get iOS 17/18 may be the Apple server failure or iOS update bugs. These can prevent an iPhone from updating to iOS 17/18. This is especially true when the release of iOS 17/18 is new, and some bugs still need to be resolved.

Part 3: How to Update iPhone to iOS 17/18?

Fix 1: Go to the "Settings" to Install iOS 17/18 Correctly

  • Step 1: Ensure you have a stable internet connection and sufficient battery life or connect your device to a power source.
  • Step 2: Go to the "Settings" app on your iOS device.
  • Step 3: Scroll down and tap on "General".
  • Step 4: Tap on "Software Update." Your device will then check for available updates.
  • Step 5: If an update is available, you will see a message with details about the update.
  • Step 6: Tap on "Download and Install." If asked, enter your passcode.
  • Step 7: The update will begin downloading. The duration may vary based on your internet speed and the size of the update.
  • Once the download completes, tap on "Install Now" or "Install" if prompted.

Fix 2: Use Professional Tool to Upgrade to iOS 18/Fix iOS 18 Unable to DownloadHOT

How to get ios 17/18? A professional tool may be the ultimate solution for you if you can't get iOS 17. UltFone iOS Upgrade Tool is a powerful and reliable tool. On the one hand, it can help you upgrade iOS 17 directly. On the second hand, you can also repair iPhone's system before updating iOS 17. Both ways make it easy for you to fix iPhone/iPad cannot update to iOS.

Watch a short video on how to quickly fix iPhone can't update to iOS 17/18 [3 minutes]

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How to Update to iOS 17/18? Look at the guide below.

  • Step 1 Download and Launch UltFone iOS Upgrade Tool. Connect your iPhone/iPad/iPod touch to the computer. Click “iOS Upgrade/Downgrade” at the bottom left of the panel.

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  • Step 2To proceed, select "Upgrade" on the following screen to update to iOS 17/18.

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  • Step 3Select the "Download" option to get the lastest firmware package.

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  • Step 4 Once the firmware package is downloaded on your computer, you can click "Initiating Upgrade" to upgrade to iOS 17/18.

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  • Step 5 You have Successfully download the iOS 18 profile. Any issues, whether it's "iPhone can't update to iOS 17/18" or "iOS 17/18 unable to download" have been solved.

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Learn More about: How to Fix iOS 17/18 Unable to Check for Update.

Fix 3: Why Don't I Have iOS 17/18, Why iOS 17/18 Is Not Available? Check Whether Your iPhone Is Supported to Fix

If you can't update to ios 17/18, it is essential to determine if your iPhone model is supported by iOS 17/18. According to the reference, iOS 17 is available for download, but not all iPhones are supported.

Fix "Why iOS 17/18 Is not Available": Check iOS 17/18 Supported Deveices

The iPhone devices that can run iOS 17/18 are iPhone XS, iPhone XS Max, iPhone XR, iPhone 11, iPhone 11 Pro, iPhone 11 Pro Max, iPhone 12, iPhone 12 Mini, iPhone 12 Pro, iPhone 12 Pro Max, iPhone 13, iPhone 13 Mini, iPhone 13 Pro, iPhone 13 Pro Max, iPhone SE (second generation and later), iPhone 14 (including Plus), iPhone 14 Pro, iPhone 15, and iPhone 16 Series.

Upgrading the device's operating system might be an exciting process with potential risks due to bugs present in the system or compatibility issues. You need to consider these factors before updating your device, as it may cause unexpected problems in the future.

Fix "Why iOS 17/18 Is not Available": iOS 17/18 Not Supported Deveices

iPhone 8, iPhone 8 Plus, and iPhone X will no longer be compatible with iOS 17/18. Apple had ceased providing feature updates for the iPhone 6 and iPhone 7 series when iOS 16 was released in the previous year. Consequently, these devices continue to run iOS 15.

If your iPhone is not included in the compatibility list for iOS 17/18, you will not be able to install the newest software, and no notification will prompt you to do so. For example, if you own an iPhone X or iPhone 8, the highest software version available for your device will be iOS 16.

However, while older iPhones may not support the latest iOS version or receive new features, they should remain functional for the foreseeable future. Additionally, Apple will continue to provide security updates for iOS 16, as they recently released the most recent security update for iOS 15 in July 2023. iOS 16 security updates will also be available in the coming period.

Fix 4: Restart Your iPhone and Try Again

How to update to iOS 17/18 if errors occur? Restarting the device may resolve any issues if you can't get iOS 17/18. You should then attempt to install the iOS 17 update again for this fix to take effect.

  • Step 1: Press and hold the Volume Up button, then quickly release it.
  • Step 2: Press and hold the Volume Down button, then quickly release it.
  • Step 3: Press and hold the side button.
  • Step 4: Release the side button when the Apple logo appears.
    • why cant i download ios 17

If the above method does not apply to your phone, you can go to Apple Support to learn how to restart the iPhone with the specified iOS version.

Fix 5: Reset Network Settings to Fix iOS 17/18 Won't Download

If iOS are unable to install ios 17/18, resetting network settings may be necessary to update the iPhone to iOS 17/18 successfully. This procedure can help resolve any issues with the existing network connection that might be preventing the phone from updating.

In some cases, resetting network settings may be required for this fix to succeed. Fix iOS 17/18 failed to update by navigating Settings > General > Reset > Reset Network Settings to do so.

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This will reset all of your Wi-Fi networks and passwords saved in Keychain. After doing so, connect back to your Wi-Fi network and try installing the iOS 17/18 update again - it should now work properly if all steps were followed correctly.

It is recommended that you try this method before attempting other fixes if you are having difficulty updating your iPhones to iOS 17/18.

Fix 6: Use iTunes/Finder With Laptop to Fix iOS 17/18 Unable to Download

If you are unable to check for update iOS, iTunes or Finder is a viable solution for you with insufficient storage space on your iPhones. This method requires the you to access a computer running either the latest version of iTunes or macOS Catalina and then connect your iPhone to the computer using a Lightning cable.

Learn how to fix iOS 16 failed to update to iOS 17/18 with these steps:

  • Step 1: After connecting the device, open iTunes or Finder and select your device in the sidebar.
  • Step 2: Click on “Check for Update” while holding down Option (Mac) or Shift (Windows) and select from available versions of iOS 17/18, which will appear. Then you can fix iPhone unable to check for update iOS error.
    • ios 17 not available

You must ensure you have enough storage space before attempting an update via this option, as sufficient free space is required to complete it successfully. After downloading and installing, you may be prompted to enter your Apple ID credentials before finishing the process.

Part 4: iOS 17/18 Update not Showing? Check How Long It Take to Have iOS 17/18 Update Notifications?

Not everyone receives iOS updates at the same time. Apple typically rolls out iOS updates in stages, gradually making them available to different regions and devices over a period of time. The release is usually determined by factors like device compatibility, geographic location, and server capacity.

Typically, Apple begins by releasing the update to a small percentage of users to ensure there are no major issues or bugs that may have been missed during testing. If no significant problems are reported, they gradually expand the release to a larger number of users.

The exact timing of an iOS 17/18's availability can also depend on factors like your device's model, carrier, region, and the specific version of iOS you are currently running. Some users may receive the update earlier than others, while some may have to wait a bit longer.

Steps on how to check if an iOS 17/18 update is available for your device: you can go to the "Settings" app, navigate to "General," and then select "Software Update." Your device will then check for updates, and if one is available, it will provide an option to download and install it.

Warm Reminder: Should I Update to iOS 17/18 or Is It Worth Updating to iOS 17/18?

Before proceeding to update from iOS 16 to iOS 17/18, it is important to consider the risks of downloading a beta version. Beta versions still need to be fully finished and may contain bugs that could affect the your experience regarding performance, stability, or usability.

Some users may find ways to downgrade from iOS 17/18 to iOS 16 due to functionality not meeting their needs after the update to iOS 17/18. Therefore, if you want a stable experience, we recommend you wait for the official release instead of running beta software on your primary device.

Conclusion About the Topic "Unable to Install iOS 17/18"

If iPhone can't update to iOS 17/18 or iOS 17/18 is unable to download, we highly recommend you utilise professional tools, like UltFone iOS Upgrade Tool. Such tools provide reliable solutions for resolving issues related to upgrading an iPhone's operating system to gain access to new features and improved performance.

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