iOS 16 Tips

Can't Update from iOS 15.7 to iOS 16? Ultimate Guide Here

by Sophie Green   Updated on 2023-03-20 / Update for  iOS 16

Trying to update to iOS 15.7 but received an error can't update to ios 15.7

Updating your iPhone to the most recent software when Apple releases new features is always exciting. iOS 16 includes some awesome new features. Along with better privacy and security measures, it has a new lock screen customization (including widgets), the capacity to edit and delete texts, and much more.

However, some users find that they can't update from iOS 15.7 to iOS 16 or even can't update to iOS 15.7.Here lists the reason and fixes for upgrade to iOS 16/15.7 for the time being if you have the issue. Read this article till the end to know about this!

Part 1: Why You Can't Update from iOS 15.7 to iOS 16 or Update to iOS 15.7

There are many reasons why your iPhone can't update from iOS 15.7 to iOS 16. Some of them are listed below:

1. Apple server is failing.

One of the most compelling reasons behind your device not updating from iOS 15.7 to iOS 16 is that the Apple server may be down. In such a case, you may wait for some time and then try again to update your iPhone.

2. Your device is not compatible with iOS 16 or iOS 15.7.

Developers have plenty of time to upgrade their programs to the most recent version, but the older apps risk using more power if they don't. Additionally, software problems are a constant risk and might be draining your battery life in the background.

3. There is a network connection problem on your device.

You'll need a strong Wi-Fi connection to upgrade your iPhone to iOS 16/15.7. So remember that a bad Wi-Fi connection can be an issue if the iPhone update won't install. A check of your internet connection could be in order before you begin downloading the update.

4. There is a temporary error when updating to iOS 16/15.7.

Due to several damaged files and issues, updating to iOS 16 or 15.7 may not be possible for you. The iOS upgrade won't install on your device because these files and bugs will interfere with it.

5. Insufficient storage or battery percentage.

Typically, iOS 16 needs at least 3 GB of storage to download and run smoothly and noramally. And iOS 15.7 uses more than 2 GB of storage. However, before downloading and installing iOS 16 or 15.7, your iPhone must have around 5 GB of free space. Therefore, if you can't update to iOS 16/15.7, it may be due to a lack of available storage.

Part 2: 5 Fixes for Failing to Update from iOS 15.7 to iOS 16 Issue

So, don't know what to do now? Well, you have come to the right place as we will discuss many ways to fix this issue. By the way, the methods below are also available for failing to update to iOS 15.7 issue.

Method 1. Confirm your device is compatible with iOS 16

Would you be interested in testing the iOS 16 beta before it becomes available to the general public? Okay, nice, but your device must support the most recent version. The supported iOS 16 devices are listed below.

ios 16 compatible devices

Users of iPhone 7 can download and install the iOS 16 Beta Profile. However, the Software update page continues to notify that iOS 15.5 - iOS is the most recent version. Even if you restart, try using the Mac's Finder and iTunes on the PC.

Method 2. Reboot Your Phone

Force-restarting your smartphone will reset your iPhone. Following the deletion of the iOS 16 beta profile, a device restart is necessary. Let's proceed with the following stages. Here are the steps on an iPhone 8 or later:

  • Press the Volume Up button, then immediately let go.
  • Press the Volume Down button, then immediately let go.
  • Till you see the Apple logo, press and hold the Side button.

    force restart iphone

Method 3. Reset Network Settings

Note: Keep in mind that when you reset your network settings, your phone will no longer remember your Wi-Fi password. If you know your password, disregard this warning and continue with the procedures below.

Any form of the network-related problem may be fixed by resetting your iPhone's network settings.

  • Open the Settings > General, and scroll to the bottom.Now, choose Reset by clicking on Transfer Or Reset iPhone.
  • Press the Reset Network Settings button and put your lock screen passcode in.
  • Tap Reset Network Settings once more.

    reset all settings

Method 4. Update from iOS 15.7 to iOS 16 via iTunes

You may update the software on your iPhone, iPad, or iPod using iTunes.

  • First you need to install the most recent version of iTunes on your PC. Your device should be connected to PC. See Sync iTunes content on PC with devices on Wi-Fi to enable Wi-Fi syncing.
  • Click the Device button in the upper-left corner of the iTunes window in the iTunes.
  • Click Summary and then tap Check for Update.

    check for update itunes
  • Then a pop out message will tell you that a new software update is available, click "Download and Update" to install the latest iOS 16/15.7 profile on iPhone.

    update iphone with itunes

Method 5. Ask Apple Support for Help

The iPhone receives upgrades from Apple rather often. The OS often receives a few incremental updates throughout the year to address bugs and enhance security, in addition to at least one major release per year.

You can manually update your iPhone to iOS 15.7 or from 15.7 to iOS 16, also can wait till it automatically pop up and ask you to update. If any of the abovementioned techniques don't work, contact Apple Support for assistance.

Part 3: Last But Most Effective Resort with Safe Tool

Last but not least, if any of the ways mentioned earlier are not working, then the most suitable option is to use Tenorshare ReiBoot! Tenorshare ReiBoot can directly update your iPhone to the newest version, it also can fix any unknown iOS system update problems, including iOS 15.7 and iOS 16.

It is a strong and well-known tool that can assist you with iOS system update and repair, guaranteeing that you can upgrade iOS with less difficulty. Here's how to do:

  • Install Tenorshare ReiBoot on your Windows or Mac computer. Open the program, then connect your iPhone to the computer using a USB cable. Tap "Start" to begin after the iPhone has been detected.

    launch reiboot
  • Click "Standard Repair" after that. Before you press "Standard Repair," please read the instructions on the screen.

     fix now
  • After that, you must click the "Download" option to download the most recent firmware file. Be patient since this process might take a while.

    download firmware
  • To start the system repair after downloading the firmware file, touch "Start Standard Repair." Several seconds must pass before the operation is finished.

    start standard repair
    Your iPhone will restart after you're done. repair successfully

Particular Tips: iOS 15.7 vs. iOS 16

Apple released iOS 15.7 and iOS 16 this week. Which iPhone upgrade should you select because they both fix a critical security flaw already being leveraged by attackers?

iOS 15.7 was released by Apple for two reasons: The first is that the iPhone manufacturer is aware that many users choose not to upgrade to significant new software releases to ward off issues. As a result, it seems to be declaring its goal to keep updating iOS 15 temporarily, as it did with iOS 14 last year. Second, Apple released iOS 15.7 in addition to iOS 16 because it considered the previously exploited security flaw important enough to justify it.

The most recent software update from Apple, iOS 16, includes many fantastic new iPhone capabilities. The capacity to unsend messages and emails, Passkeys, and Safety Check is among the finest. If you feel like experimenting, iOS 16 also comes with Lockdown Mode, a highly focused security option that almost renders your iPhone useless while protecting it from attackers.


Less than a week after its "Far Out" event, when it unveiled the next range of iPhones, Apple Watches, including the Apple Watch Ultra and the AirPods Pro, Apple launched iOS 16. This guide was created to assist you in becoming familiar with iOS 16 and the additional capabilities it adds to your iPhone. We believe this post and Tenorshare ReiBoot adequately addresses most of your iOS upgrade concerns.