For registered developers. There are two ways to install iOS 11 on iPhone and iPad. If the update cannot be delivered over the air, you can flash the device via iTunes.

It is important to remember that test builds of iOS 11 contain not only new features, but also bugs that may interfere with the normal operation of iPhone and iPad. For non-software developers, installing the developer beta is not recommended. The public version is expected before the end of the month.

Create a backup copy

Before installing iOS 11 on iPhone and iPad, you need to create backups. This will prevent you from losing important files if something goes wrong.

Step 1: Connect your iPhone or iPad to your computer.

Step 2: Open iTunes on your computer.

Step 3. Click on the device icon in the upper left corner of the window.

Step 4: Go to the Review section in the sidebar.

Step 5: Check "This PC".

Step 6. Check the “Encrypt backup” option.

Step 7: Click “Create a copy now.”

Step 8: Enter a password to encrypt the backup.

Step 9: Once the process is complete, select iTunes > Preferences at the top.

Step 10: Select the Devices tab.

Step 11. Right-click on the created backup.

Step 12: Click "Archive".

If a backup is archived, it will not be overwritten by the iOS 11 backup.

How to install iOS 11 beta: method 1

Step 1: On your smartphone or tablet, open this page.

Your mobile operating system. Currently, not only users who have paid $100 for participation in the developer program, but also anyone can use test builds of the new OS.

Update 8/15: Apple has released a public beta to testers. To install the update, go to Settings -> General -> Software Update. Read the instructions below for information on how to install the OS from scratch.

Since ordinary users can participate in the testing program, you do not need to have a developer account to install iOS 10 Public beta on an iPhone or iPad. As part of the OS X Beta Seed Program, test builds are available to everyone.

iOS 10 Public beta 1 corresponds to iOS 10 beta 2 for developers. It fixes bugs and shortcomings of the original release and makes many corrections to the user interface. OS innovations include: an application store for iMessage, support for interactive notifications with correspondence history, updated folder design, and new lock screen features.

How to install iOS 10 without a developer account:

Step 1: Make sure your iPhone, iPad or iPod touch is running the latest version of iOS 9.3.2. After that, open the page in your browser appleseed.apple.com/sp/betaprogram.

Step 2: Click the blue “Register” button.

Step 3: On the next screen, enter your Apple ID account name and password. Click "Sign in".

Step 5: On the Public Beta Guide page, go to the iOS tab and review Apple's instructions.

Step 6: Beta installation is performed using the iOS Beta Configuration profile. It needs to be loaded on the page beta.apple.com/profile. Open this link on your iPhone or iPad on which you want to install iOS 10 beta.

Step 7: Specify your account settings and on the next screen, click the “Upload Profile” button.

Step 8: Now confirm the installation of iOS 10 Public Beta with the “Install” button.

The iOS 10 operating system will be in the testing stage until September: Apple will release new test releases several times a month. You need to understand that errors may occur while working with the operating system: “Remember that beta versions of software should not be installed on systems that are critical for work or business. We strongly recommend installing beta versions on a second system or device, or on a second partition of your Mac." Apple promises stable operation only for the final releases of its platforms.

Apple has released a “phantom” update to the beta version of iOS 12. This time, the twelfth version of the iOS 12 beta update has been released to developers. Apple probably did not plan this release, but due to the situation that emerged in beta 11, another version was released.

After the release of the eleventh beta version, a notification window began to appear for some developers. “An iOS update is available. Please update your installed iOS 12 beta."

This notification popped up on the screen every time the device was unlocked. And since beta 11 was just installed and users were testing this update, the message appeared many times. Apple learned about this situation and released iOS 12 beta 12, which fixed this bug in the system.

iOS 12 beta 12 - what's new in the update

Regardless of the reasons, Apple has released a small 110 MB update for the iPad. This version, with build number 16A5366a, has increased the number of betas by two versions compared to iOS 11. Let's hope that there will be no problems with the official iOS 12, which I will show on September 12, compared to the previous version. In the end with release of iOS 12 GM it will be clear that the release is completely ready for release.

In beta 12, only one, at least known to us, bug problem was fixed:

• Fixed an error that caused the message “iOS update available. Please update your installed iOS 12 beta."

If the company has also improved some of the nuances in the system, this will have a positive impact on overall performance.

It will be announced during the presentation on September 12. This will probably happen within two weeks after the event. Simultaneously with the release of the official iOS 12, developers will begin work on a new version of the system.

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Apple has released a “phantom” update to the beta version of iOS 12. This time, the twelfth version of the iOS 12 beta update has been released for developers. Apple probably did not plan this release, but due to the situation that emerged in beta 11, another version was released. After the release of the eleventh beta version, a notification window began to appear for some developers. "An iOS update is available. Please update your installed iOS 12 beta." This notification popped up on the screen every time the device was unlocked. And since beta 11 was just installed and users were testing this update, the message appeared many times. Apple learned about this situation and released iOS 12 beta 12 in...

“We are expecting wonderful news in the form of a new iOS this year from Apple at the worldwide developer conference WWDC 2018 - the promised iOS 12. A truly long-awaited improvement, since the iOS 11 version is criticized for constant crashes and errors. But what is even more tempting , is that the release of a new iOS means that there will definitely be a beta version before the official version of iOS 12. And like the beta version released last year for iOS 11, the upcoming beta version of iOS may introduce bugs when installation and operation. Error installing iOS 12– if you encounter this or a similar type of error, then you have come to the right place. In this article we will help you solve this problem.

Part 1: 5 Ways to Fix the “Unable to Install iOS 12” Error

iOS 12 is, in general, a test version of the official product. Such test cases are created for developers to test the system and understand how everything works in it, what improvements have been introduced, what are the latest key characteristics. And since these versions are only test versions, they can lead to certain errors that can affect the installation process and the operation of the system. Therefore, if you have already encountered the “Unable to install iOS 12” error during installation, follow the methods outlined below to immediately solve this problem.

Method 1: Check iOS 12 Compatibility

First of all, you need to understand that everything is evolving, and iOS 12 represents the next generation of Apple's operating system. If you remember the release of iOS 11, then some older iPhone models were excluded from the line, because... were no longer compatible with the system. Likewise, iOS 12 will not support older device models.

Below is a list of supported iOS 12 devices, from the new iPhone 2018 to the old iPhone 5s, from iPad Pro 2nd generation to iPad mini 2. We recommend checking if your device is included in this list.

Method 2: Check the available memory on your iPhone or iPad

An error when installing iOS 12 may occur repeatedly due to insufficient memory on your iPhone or iPad. It's no secret that iPhone models are prone to storage space issues due to lack of memory and lack of external storage options. Thus, it is extremely important and necessary to check that you have enough free memory on your iPhone or iPad before installing any version of the new iOS. In order to successfully update iOS, you should have at least 4 GB of free memory. To make up for limited memory, you can do the following.

• 1. Go to Settings.
• 2. Open the "Basic" tab.
• 3. Open iPhone Storage.
• 4. Follow the prompts to offload apps or upload your entire library to iCloud.

Method 3: Check your network settings

Sometimes the network settings on your iPhone or iPad can prevent installation and give you an error when installing the public beta version of iOS 12. This point is key, since your network connection is fundamental to the successful installation of the entire system on your phone. The required action on your part is to carefully check the network settings before installation. Or, if you have already received an error, follow the following instructions:

This will reset your cellular network settings, Wi-Fi settings, passwords, VPN, APN and everything else.

Method 4: Force Restart your iPhone or iPad

Still having trouble installing the iOS 12 beta? It's time to try to force restart your device and see if it works. Often this solves the problem, but the method of rebooting will depend on the “age” of your device. Therefore, the methods vary slightly for different iPhone models. They are listed below.

Force restart iPhone 6, SE and earlier models:

• 1. On iPhone 6 or earlier, press the Home button and the Power button at the same time.
• 2. Keep both buttons pressed until the Apple logo appears.
• 3. When you see the logo, release both buttons and wait until the phone starts up.
• 4. You may need to enter a password and you're done!

• 1. Press the Power button located on the right at the same time as the Volume Down button located on the left.
• 2. Keep the buttons pressed until the Apple logo appears. Wait for it to start.
• 3. Now enter your password. In this case, it is not recommended to use the fingerprint ID.

• 1. Quickly press and release the Volume Up button.
• 2. Then quickly press and release the Volume Down button.
• 3. Now press and hold the Power button until the Apple logo appears.
• 4. Enter the password in the same way and do not use the fingerprint identification function.

And now you have successfully rebooted your iPhone.

Method 5: Update using iTunes

If iOS 12 does not install over-the-air or does not work correctly, you can update using iTunes. Actually, using iTunes, you manually install the iOS 12 IPSW file on your iPhone. This is a proven method that works well if done correctly. However, you will lose all your iPhone data, so it is better to make a backup copy in advance! Below are instructions on how to install an IPSW file using iTunes:

Now iTunes will simply remove the previous system and update to iOS 12 beta without any problems.

Part 2: Fix iOS 12 installation error using Tenorshare ReiBoot

The final and most optimal way to resolve errors when installing iOS 12 is. This program is a professional tool that will certainly solve this problem in a few minutes. The utility is capable of solving any type of iOS installation errors, as well as other iPhone or iOS failures. The great thing about the program is that the entire process is done with one click of the mouse and that when you use the program, your data will not be deleted, as happens with iTunes.