Can't Update iPhone 12 to iOS 16? Here's Why and How to Fix It

Have you been trying to update your iPhone 12 to iOS 16, but for some reason, it’s not working? You’re not alone. Many users have reported experiencing issues while trying to update their devices to the latest iOS version. In this blog post, we’ll explore some potential reasons why your iPhone 12 might not be updating to iOS 16 and provide some strategies to help you resolve the problem.

I’ve been writing about technology for several years now, and I’ve seen my fair share of iOS update issues. In my experience, the most common reason why an iPhone won’t update is due to a lack of storage space. Before you can update your iPhone, you need to make sure that you have enough free space on your device. You can check your storage space by going to Settings > General > iPhone Storage. If you don’t have enough space, you’ll need to delete some files or apps to make room for the update.

In addition to storage space issues, there are a number of other factors that can prevent your iPhone from updating, such as a weak Wi-Fi connection, a software glitch, or a hardware issue. In the next section, we’ll discuss some troubleshooting tips that you can try to fix the problem and successfully update your iPhone 12 to iOS 16.

Why is My iPhone 12 Not Updating to iOS 16?

I. Check Compatibility

To ensure a seamless update, it’s crucial to verify the compatibility of your iPhone 12 model with the iOS 16 operating system. Navigate to the Settings menu, then delve into the General tab, and finally tap the About section. Here, you’ll find the model name and current software version. This information will confirm whether your device qualifies for the iOS 16 upgrade.

II. Free Up Storage Space

iOS 16 demands a substantial amount of storage space to accommodate its advanced features and functionalities. Therefore, it’s imperative to scrutinize your device’s storage situation. Consider eliminating any redundant applications, photographs, or video content that may be occupying valuable space. Additionally, venture into the Settings menu, navigate to the General tab, and explore the iPhone Storage section. This section provides tailored storage optimization suggestions, enabling you to effortlessly free up space for the iOS 16 update.

III. Check Internet Connectivity

A stable and reliable internet connection plays a vital role in ensuring a successful iOS update. Verify that your device is connected to a robust Wi-Fi network or cellular data service. If you encounter any connectivity issues, toggle Airplane mode on and off to refresh the connection. This simple action can often resolve minor network glitches and restore a stable connection.

IV. Force Restart the iPhone

Occasionally, a force restart can resolve seemingly inexplicable software issues. To initiate a force restart, quickly press and release the Volume Up button, followed by an equally quick press and release of the Volume Down button. Finally, press and hold the Side button until the Apple logo graces the screen. This forceful reboot can often eliminate temporary glitches that may have hindered the iOS update process.

V. Reset Network Settings

In certain scenarios, resetting the network settings can help resolve connectivity issues that may be impeding the iOS update. Navigate to the Settings menu, delve into the General tab, and search for the Reset option. Within the Reset menu, locate the Reset Network Settings option. Beware that this action will erase all previously configured network configurations. Consequently, you’ll need to re-enter your Wi-Fi passwords and reconfigure any Bluetooth connections. However, this drastic measure can be instrumental in overcoming persistent network issues.

VI. Update Using iTunes/Finder

If the aforementioned troubleshooting steps fail to yield the desired result, consider updating your iPhone 12 via iTunes or Finder. Connect your device to a computer equipped with either iTunes (for macOS Catalina or earlier) or Finder (for macOS Big Sur or later). Once connected, select your iPhone from the available options, then click the Update button located within the Summary tab. This alternative update method may prove successful in cases where over-the-air updates encounter difficulties.

VII. Contact Apple Support

Should all else fail, don’t hesitate to seek assistance from the knowledgeable and experienced Apple Support team. Visit Apple’s official website or dial 1-800-MY-APPLE (1-800-692-7753) to connect with a qualified technician. The Apple Support team is equipped to provide personalized guidance, troubleshoot complex issues, and facilitate a successful resolution to your iOS 16 update quandary.In conclusion, if you’re facing challenges updating your iPhone 12 to iOS 16, consider implementing the comprehensive troubleshooting measures outlined in this article. By systematically addressing compatibility, storage space, internet connectivity, and potential software glitches, you’ll significantly enhance your chances of a seamless and successful update experience. However, if the issue persists despite your best efforts, don’t hesitate to leverage the expertise of Apple Support. With their invaluable assistance, you’ll swiftly resolve any lingering obstacles and unlock the full potential of iOS 16 on your iPhone 12.


If your iPhone 12 is not updating to iOS 16, it could be due to several reasons. Remember to check compatibility, ensure ample storage space, verify internet connectivity, attempt a force restart, reset network settings, consider updating via iTunes/Finder, or contact Apple Support for assistance. By following these steps, you should be able to resolve the issue and successfully update your iPhone 12 to iOS 16. If you’re still encountering problems, do not hesitate to seek help from Apple’s expert support team.

FAQs about why is my iPhone 12 not updating to iOS 16

1. Is my iPhone 12 compatible with iOS 16?

Yes, the iPhone 12 is compatible with iOS 16 and can be updated to the latest version.

2. Why is my iPhone 12 not showing the iOS 16 update?

There could be several reasons why the iOS 16 update is not showing on your iPhone 12, such as an unstable internet connection, insufficient storage space, or outdated software.

3. What should I do if my iPhone 12 is stuck on the iOS 16 update?

If your iPhone 12 is stuck on the iOS 16 update, try restarting your device or connecting it to a computer and using iTunes to complete the update.

4. How long does it take to update my iPhone 12 to iOS 16?

The time it takes to update your iPhone 12 to iOS 16 varies depending on factors such as your internet speed and the size of the update.

5. What should I do if I encounter problems updating my iPhone 12 to iOS 16?

If you encounter any problems updating your iPhone 12 to iOS 16, try troubleshooting common issues such as checking your internet connection, freeing up storage space, or contacting Apple Support.

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