Problems and errors when restoring an iPhone in iTunes and from a backup. What to do, iPhone cannot restore backup

Users are reporting that their iPhone8/X is unable to restore from the latest backup due to various reasons. In this article, we have listed the reasons and corresponding solutions when you were unable to restore your iTunes or iCloud backup.

Part 1: Fix iTunes couldn't restore iPhone

When you have problems with iPhone not restoring from iTunes backup, below you can find useful tips.

iTunes backup is corrupted or incompatible

When you are in this situation, deleting corrupted backup files is a good way to fix the iPhone cannot restore backup error.

1. Firstly, you should find backups of your iPhone8.

On PC with Windows 7,8 and 10:

To find a list of backups, select \Users\(username)\AppData\Roaming\Apple Computer\MobileSync\Backup\

You can also do the following:
Find the search string:

In Windows 7, click the Start button.
In Windows 8, click the magnifying glass icon in the upper right corner of the screen.
On Windows 10, go to the search bar next to the Start button.

Type %appdata% in the search bar and press Enter, then click these folders: Apple Computer > MobileSync > Backup.

On Mac:

Step 1: Click on search in the menu bar.
Step 2: Type or copy and paste the following text: ~/Library/Application Support/MobileSync/Backup/
Step 3: Press Enter.

To find a specific backup, follow these steps:

Open iTunes. From the menu bar, click iTunes and select Preferences.
Select "Devices".

Control-click the backup you want and choose Show in Finder.

2. Copy your iOS backups to another location, such as your desktop or external drive.

3. Open iTunes on your computer and select "Devices".


4. Select all backup files and click "Delete Backup".

5. Copy all previous backup files back to the Backup folder.

6. Try restoring iTunes again.

If this doesn't help, you may want to consider deleting all backups and creating a new backup if the new iPhone doesn't see the iTunes backup.

Error when restoring a backup

If the message says unknown error, you cannot restore iPhone 8 from iTunes backup, you can turn to free Tenorshare TunesCare. Instead of trying possible solutions every time, Tenorshare TunesCare offers the ultimate solution to fix various iTunes sync/backup/restore errors.


iPhone is disabled or not recognized by iTunes

Make sure the new version of iTunes is up to date.
Check the USB cable and connections.
Restart your computer and iPhone 8.
Put your iPhone into recovery mode with a free one that will be detected.

Backup password is incorrect

If you enabled an encrypted backup and accidentally forgot the backup password, there is no way to restore the iTunes backup to your iPhone 8 unless you remove the password using third-party software such as . Learn more about how to remove iPhone backup password.

Part 2: New iPhone 8/8 Plus cannot restore data from iCloud backup

In another situation, if you are using iCloud backup and cannot restore iPhone from iCloud iOS 11, things are different. Most iCloud backup errors are caused by:

Not enough space on iPhone 8

If the previous backup file is large enough, you may be prompted to indicate that there is not enough space to restore from your iCloud backup. In this case, it is suggested to clear some space on your iOS device. is a good tool for recovering limited storage space.

iCloud recovery takes too long to complete

The problem of iPhone not finishing restoring from iCloud backup is mainly caused by slow network connection as well as large file size. Make sure your device is connected to a reliable and stable Wi-Fi network, then wait patiently.

Or you can try iTunes backup alternative - . Supporting both iTunes and iCloud backups, UltData processes recover with incredible speed. You just need to sign in to your Apple ID and select the file to back up.


Some items cannot be recovered or iCloud recovery is incomplete

When your backups contain purchases made from more than one Apple ID, you will be prompted to send a message requiring you to sign your Apple ID, otherwise the iPhone cannot be restored from the backup. Click "Skip this step" and sign in later.

Hope these suggestions work for you. Share it if this article helps in resolving your iPhone 8/8 Plus/X will not be restored from iTunes/iCloud backup.

Those owners of a modern gadget who have serious problems with its operation are actively looking for information on how to restore an iPhone.

This may be due to the fact that the owner of the gadget took the risk of jailbreaking himself, but the process ultimately led to undesirable consequences. The iPhone simply stopped obeying its “master”; system failures began to appear quite often.

Also wanting to know how to restore an iPhone to factory condition are those users who decided to part with their sophisticated “toy” by selling it. Of course, no one wants to sell a gadget with personal information on it, so such interest is quite justified.

Any process will be accompanied by maximum efficiency if you prepare for it properly. Since not everyone knows how to restore an iPhone via iTunes, a situation arises when a decision is made to go to a service center.

Of course, such a campaign will be effective, but along with the achieved goal, you will have to say goodbye to a certain amount. However, experienced users recommend not to rush to visit the service center, but to study the information on how to restore an iPhone via iTunes, use it and do everything yourself.

Nuances of preliminary preparation

The preparatory process will be successful if the iPhone owner takes into account all the nuances presented by those who have practical experience in resolving such issues.

It is very important to understand that only an iPhone accompanied by the current firmware version will be subject to restoration. If your gadget has firmware installed that has long ceased to be relevant, so Apple has already successfully “disposed of” it, then you definitely won’t be able to restore the gadget with exactly this firmware.

iTunes will persistently report an error every time you try.

In this situation, you will have to choose a different firmware version, but you should remember that subsequently it will definitely not be possible to downgrade it, even if you are a staunch supporter of it.

It is important to consider that if your iPhone is locked to a specific operator, it is important to use the special Redsn0w utility before carrying out the recovery process.

And the last thing that is very important to consider before starting recovery is that the process will lead to the complete erasure of all information. If you are afraid of losing photos, music or anything else important, first make a backup copy or simply move all important content to your computer.

Recovery process

Information on how to restore an iPhone will also be useful if the owner has forgotten the password and for this reason cannot log into the system.

The most reliable assistant during recovery is the iTunes program, which you can download in advance. It is also important not only to have this program available, but also to make sure that the installed iTunes has the latest version. Otherwise, to get maximum results, you should download it and reinstall it on your computer.

Recovery stages

Initially, launch iTunes on your computer, then connect your iPhone via a USB cable to the computer.


The program should independently determine which device is connected; click on this entry, pointing to your iPhone.

Now pay attention to the left side of the open window, there will be a line “Browse”, click on it as well. You will see several offers in the main part of the window, among which you should select “Restore iPhone”.

If you are really sure of the need to restore your gadget, if someone has forgotten the password and there is no other solution to the problem, if you want to eliminate the terrible consequences due to an unsuccessful jailbreak, feel free to click on this button.

iTunes will once again clarify with you how consciously you perform such responsible actions. Confirm your decision by pressing the “Restore” button again, after which the desired recovery process will start.

It will happen automatically, without requiring any of your intervention. All you have to do is wait patiently for it to complete. During these steps, the current version of the iOS operating system will be installed.

In a few minutes, the process will be completed, the gadget will reboot and start, without the need to enter a password, which is important for someone who has hopelessly forgotten it.

Your hands will now have an iPhone in its original form, as if you had just purchased it in a store. Of course, now you will need to spend some time to re-download all the necessary software, games, return back the content previously moved to the computer, and you can also set a password again to limit access to your gadget.

It is important that the user does not forget this password again, otherwise he will have to perform such manipulations again. Although they are not accompanied by difficulties and problems, they do take some time.

By the way, it is possible to restore your iPhone from a backup that was made earlier and saved on your computer. You can also restore your iPhone from this backup using iTunes.

So, any owner can return their iPhone to working condition if they take the time to read the instructions and then act according to the recommendations received. The process is simple, since iTunes does everything automatically, the owner only needs to make a few changes.


Restoring an iPhone can help when there are problems with applications, slowdowns and glitches. Also, before selling the device, it is advisable to return the phone to factory settings, deleting all your data from it. I sometimes use recovery as a way to immediately get rid of all the programs that have accumulated over several months. The article discusses options for how to restore an iPhone from various states. The recovery procedure itself is not particularly complicated. However, there are a number of nuances that users may encounter. The first thing to note is that after restoring the firmware, users will receive a “clean” device running the latest version of iOS. During the recovery process, all personal data, including photos, videos and music, will be deleted from the gadget’s memory. You can get your data back thanks to a backup that is stored either in iCloud or iTunes. There are also some other methods that allow you to restore at least part of the data if there is no backup.

How to Restore iPhone via iTunes

1. Connect your mobile device to your computer using a cable.

2. Disable the Find My iPhone feature ( Settings – iCloud – Find iPhone). 3. Launch iTunes (it is advisable to use the latest version of the application. You can download it on the official Apple website).

4. Open a tab with the connected device. 5. Press the Restore button. iTunes also allows you to restore your device from a backup. To do this, you need to select the location of the backup (on your computer or in iCloud) and press the Restore from backup button.

How to restore iPhone if there is no backup

If there is no backup, iPhone owners can still return some information that was stored in the memory of their mobile devices. To do this, you can use an application called Mac FoneLab. With its help, you can restore part of the data after deletion, unsuccessful flashing, full reset to factory settings, etc. Using the utility is quite simple. To recover data using Mac FoneLab you need to: 1. Purchase the application on the official website of the developers. 2. Install Mac FoneLab (there are versions for Windows and OS X). 3. Connect your mobile device to your computer. 4. Launch Mac FoneLab.

5. Wait until the utility analyzes the mobile device’s memory and displays a list of data that can be recovered.

After this, all that remains is to mark the necessary files and save them in the computer’s memory. It is worth noting that Mac FoneLab cannot recover all the information that was available on the mobile device. If you want to restore your iPhone, something may be lost. But with the help of this utility, users can return at least part of the data. The only downside of Mac FoneLab is the price of the application. It can be purchased on the official website for $80. At the same time, from time to time developers give users the opportunity to purchase the utility at a big discount. For example, at the time of this writing, Mac FoneLab could be purchased for $48. In addition, before purchasing, users can familiarize themselves with the application by downloading a free trial version.

How to solve the problem if your iPhone is frozen with the Apple logo on the screen

As mentioned above, sometimes owners of Apple smartphones and tablets encounter problems during the installation of updates or during the jailbreak procedure. As a result, the iPhone and iPad may simply “freeze” during the startup process, and the Apple logo will constantly be displayed on the screen of the gadgets. Solving this problem is quite simple, you need to: What to do: First of all, calm down, then... 1. Turn off your mobile device using one of the available methods. 2. Connect your iPhone to your computer. 3. Launch iTunes. 4. Turn on the device into mode. (Turn off the iPhone by holding the Home and Power buttons at the same time, this is the one on the front panel and the one at the end of the phone. As soon as the screen goes dark, release the Power key on the top end, but keep Home pressed!) 5. After that, on the screen computer, a notification should appear indicating that the iPhone needs to be restored. After pressing the Restore button, the firmware recovery process will begin.

You will see an apple and a recovery bar on your phone screen. This procedure also helps in cases where it is necessary.

iTunes cord on screen

This most likely happened due to incorrect iPhone firmware, or if the phone is locked to a telecom operator and cannot work with your SIM card. Likewise, if the iPhone is not activated. To solve the problem, you need to restore your iPhone in iTunes, as in the previous paragraph.

Other errors you may encounter when restoring an iPhone

- Error 1013, 1014 or 1015 Errors 1013, 1014, and 1015 occur when iTunes tries to downgrade the iPhone's modem version. To solve this problem you need: 1. Download the redsn0w application. 2. Launch the utility. 3. Connect iPhone to computer.

4. In the main application window, select Extras -> Recovery Fix. 5. Click Next and switch the device to mode. 6. Follow the instructions in the application. It will help put the device into DFU mode. After this, you can try to restore the device using the method described above. - Error 3194 Another fairly common error is error 3194. It occurs when the hosts file is configured to redirect iTunes to the Cydia server. This could be done either manually or using the TinyUmbrella utility. In an attempt to restore an iPhone, iTunes contacts Apple servers, and if it does not find them, it generates an error. To solve this problem, you need to remove a line like " xx.xxx.xx.xxx gs.apple.com". You can find the file you need using the search function, or at the address - system drive\Windows\System32\Drivers\etc.

Other useful articles:

Vadim Nefedov How to restore iPhone 6

Restoring an iPhone can help when there are problems with applications, slowdowns and glitches. Also, before selling the device, it is advisable to return the phone to factory settings, deleting all your data from it. I sometimes use recovery as a way to immediately get rid of all the programs that have accumulated over several months. The article discusses options for how to restore an iPhone from various states. The recovery procedure itself is not particularly complicated. However, there are a number of nuances that users may encounter. The first thing to note is that after restoring the firmware, users will receive a “clean” device running the latest version of iOS. During the restoration process, all personal data, including photos, videos and music, will be deleted from the gadget’s memory. You can return the data thanks to a backup copy that is stored either in iCloud or iTunes. There are also some other methods that allow you to restore at least part of the data if there is no backup. How to restore an iPhone via iTunes1. Connect your mobile device to your computer using a cable.2. Disable the “Find iPhone” function (Settings – iCloud – Find iPhone).3. Launch iTunes (it is advisable to use the latest version of the application. You can download it on the official Apple website).4. Open the tab with the connected device.5. Press the Restore button. iTunes also allows you to restore your device from a backup. To do this, you need to select the location of the backup (on your computer or in iCloud) and press the Restore from backup button. How to restore an iPhone if there is no backup If there is no backup, iPhone owners can still return some information that was stored in the memory of their mobile devices. To do this, you can use an application called Mac FoneLab. With its help, you can recover some data after deletion, unsuccessful flashing, full reset to factory settings, etc. Using the utility is quite simple. To recover data using Mac FoneLab you need:1. Purchase the application on the official website of the developers.2. Install Mac FoneLab (versions available for Windows and OS X).3. Connect your mobile device to your computer.4. Launch Mac FoneLab.5. Wait until the utility analyzes the memory of the mobile device and provides a list of data that can be recovered. After this, all that remains is to mark the necessary files and save them in the computer’s memory. It is worth noting that Mac FoneLab cannot recover all the information that was available on the mobile device. If you want to restore your iPhone, something may be lost. But with the help of this utility, users can get back at least part of the data. The only disadvantage of Mac FoneLab can be considered the price of the application. It can be purchased on the official website for $80. At the same time, from time to time developers give users the opportunity to purchase the utility at a big discount. For example, at the time of writing this material, Mac FoneLab could be purchased for $48. In addition, before purchasing, users can familiarize themselves with the application by downloading a free trial version. How to solve the problem if the iPhone is frozen with the Apple logo on the screen As mentioned above, sometimes owners of Apple smartphones and tablets encounter problems during the installation of updates or during the jailbreak procedure. As a result, the iPhone and iPad may simply “freeze” during the startup process, and the Apple logo will constantly be displayed on the screen of the gadgets. Solving this problem is quite simple, you need to: What to do: First of all, calm down, then...1. Disable your mobile device using one of the available methods.2. Connect iPhone to computer.3. Launch iTunes.4. Turn the device into DFU mode. (Turn off the iPhone by holding down the Home and Power buttons at the same time, this is the one on the front panel and the one at the end of the phone. As soon as the screen goes dark, release the Power key on the top end, but keep Home pressed! )5. After this, a notification should appear on the computer screen that the iPhone needs to be restored. After pressing the Restore button, the process of restoring the firmware will begin. On the phone screen you will see an apple and a recovery bar. This procedure also helps in cases where you need to remove the password from the iPhone. There is an iTunes cord on the screen. This most likely happened due to incorrect iPhone firmware, or if the phone is locked to a carrier and cannot work with your SIM card. Likewise, if the iPhone is not activated. To solve the problem, you need to restore the iPhone in iTunes, as in the previous paragraph . Other errors that you may encounter while restoring your iPhone are Error 1013, 1014, or 1015. Errors 1013, 1014, and 1015 occur when iTunes tries to downgrade the iPhone's modem version. To solve this problem you need: 1. Download the redsn0w.2 application. Run the utility.3. Connect iPhone to computer.4. In the main application window, select Extras -> Recovery Fix. 5. Click Next and switch the device to DFU mode.6. Follow the instructions in the application. It will help put the device into DFU mode. After this, you can try to restore the device using the method described above. - Error 3194 Another fairly common error is error 3194. It occurs in cases where the hosts file is configured to redirect iTunes to the Cydia server. This could be done either manually or using the TinyUmbrella utility. In an attempt to restore an iPhone, iTunes contacts Apple servers, and if it does not find them, it generates an error. To solve this problem, you need to remove the line “xx.xxx.xx.xxx gs.apple.com” from the hosts file. You can find the file you need using the search function, or at the address - system drive\Windows\System32\Drivers\etc. Other useful articles: How to download information from iCloud How to transfer your iTunes library to another computer File managers for iPhone How to restore iPhone Replacing iTunes

In this article we will look at ways to flash, restore and update an iPhone. Let's start with the fact that why is this necessary at all? Usually they re-ask the iPhone due to software errors or due to an unsuccessfully installed jailbreak. In general, the concept of flashing an iPhone differs from flashing the firmware of Android devices on an iPhone; this means restoring or updating the device, and in the future we will look at various ways to carry out these operations.

iPhone flashing options

There are 2 processes involved in flashing an iOS device:

  • recovery;
  • update.

At their core, the processes are identical: in the first and second cases, as a result of flashing the iPhone, a new iOS will be installed. Moreover, the concept of “new” in the case of restoring an iPhone does not refer to the version of the operating system, but to its state, in other words, “clean”.

iPhone flashing methods

You can reflash your iPhone in 2 ways, one of them is universal, i.e. used for both recovery and update, the second one is only for update:

  • iPhone firmware via iTunes;
  • Update iOS on iPhone via Wi-Fi.

In the first case, the software is downloaded to the computer and, using the iTunes media combiner, it is downloaded directly to the iOS device. Valid for iOS 4.3.5 inclusive. For iOS 5 and higher, the second method is possible, which involves updating iOS directly from the device via the Internet via a wireless network (Wi-Fi).

What is the difference between restoring an iPhone and updating it?

As we have already said, restoring or updating an iPhone refers specifically to the software component of the device.

  • If Find My iPhone is enabled on your iPhone, turn it off in your device's settings;
  • Connect the iPhone to the computer using a USB cable and if the iTunes settings are not set to automatically launch the program when you connect an iOS device, launch iTunes;
  • Go to the device synchronization settings page with iTunes by clicking on the button with the name of the device type in the upper right corner next to the "iTunes Store" button;
  • While holding down the "Shift" key on your keyboard, click on the "Restore" button (for Mac, you need to press the Alt+Restore button). A window for selecting a firmware file from the local disk will appear;
  • Select the previously downloaded firmware file with the extension ".ipsw" and click on the "Open" button. Confirm the request to restore your iPhone. iTunes initiates the recovery process. No further action is required from you; iTunes will automatically delete all content and load the “fresh” firmware into the internal memory of the iPhone. In this case, the device will be switched to Recovery Mode and the device will be restored to its factory state.

It is important to know

The iPhone recovery process can be completely entrusted to iTunes, without the need to download the firmware file to your hard drive, however, after such recovery, if a more recent version of iOS is available in iTunes, it will be installed on the iPhone. In fact, content will be deleted, settings will be reset, and the iPhone will be updated to the new iOS.

How to restore iPhone from Recovery Mode and DFU Mode?

The procedure for restoring an iPhone from Recovery Mode or DFU Mode is completely identical, with one exception: before restoring, you must enter the iPhone into Recovery Mode or DFU Mode, respectively.

  • Enter iPhone into Recovery Mode or DFU Mode;
  • Connect your device to your computer using a USB cable and launch iTunes. The program will detect the iPhone in recovery mode;
  • While holding down the "Shift" key on your keyboard, click on "Restore" (Mac users should press the "Alt+Restore" combination);
  • Open the previously downloaded firmware file with the extension ".ipsw". iTunes will take over the rest of the work, wait for the process to complete.

Is it possible to reset an iPhone without updating iOS?

If we are talking about a “clean” iPhone restore via iTunes, the result will be the latest version of iOS installed on the device, i.e. in fact, a firmware update will occur, and this is not always necessary, especially for owners of jailbroken devices. Why? Because a jailbreak for the current iPhone firmware version appears, as a rule, very late, and as a result, updating the iPhone will entail the loss of the jailbreak.

Restoring/Updating a “locked” (locked to a specific cellular operator) iPhone with jailbreak entails:

  • blocking a “locked” iPhone - you will not be able to connect the device to the cellular network of another operator;
  • loss of jailbreak.

Fortunately, there is a way to reset your iPhone and remove all content from it without updating the iOS version and without losing the jailbreak. We have already talked about the SemiRestore utility, which allows you to clear the contents of an iOS device and reset its settings to factory settings without loss. Use the instructions if you have a “locked” or “jaybroken” device.

iPhone update

We have already mentioned that there are 2 ways to update your iOS device to the latest version of iOS:

  • connected to a computer via iTunes;
  • directly from your iOS device via Wi-Fi.

The first method is practically no different from restoring an iPhone to the current firmware version. The second allows you to update your iPhone to the latest iOS without connecting to a computer via Wi-Fi.

Updating iPhone from computer via iTunes

  • Connect your iPhone to your computer using a USB cable and launch iTunes. Go to the "Devices" menu and select your device;
  • On the page for setting up synchronization and settings for connecting the device to iTunes, left-click on “Update”. Confirm that your iPhone is updated to the latest version of iOS.
  • You can save time and not wait for iOS to download to the iTunes service folder by first downloading the current iOS to your hard drive. Using the combination "Shift+Update" initiate a firmware update from the hard drive.

After the update, you will receive an iPhone with the latest iOS “on board”, all user content and settings will be saved.

Update iPhone over Wi-Fi

With the advent of iOS 5.0, developers integrated the ability to update firmware directly into the mobile operating system. Starting from iOS 5.0 and higher, the “Software Update” menu item is available in the settings of iOS devices. The update is only available when connected to the Internet via Wi-Fi. The bandwidth of cellular internet connections does not allow updating iOS over a 2G or 3G connection.

  • On iPhone, go to Settings -> General -> Software Update;
  • Tap on “Download and install” and in the next window accept the terms of use. Wait for the process to complete.

Let us remind you once again that updating iOS does not entail the loss of user data and content and resetting settings, but it is dangerous for “jailbroken” and “locked” devices.

One of the key features of iOS is its stability, but there are times when users encounter some software issues. However, as practice shows, in most cases it is not at all necessary to carry an Apple gadget for service. Most often, problems can be solved by simply restoring iOS.


Let us immediately note that this material will primarily be useful to those who are just starting to get acquainted with apple products. Therefore, in addition to recovery, we will also mention another process associated with flashing the device - updating.

First, you need to understand how recovery differs from updating.

Upon restoration, users will receive a “clean” device with the latest version of iOS. During the recovery process, photos, videos, music and personal data will be removed from the gadget’s memory, and the device’s settings will be reset to factory settings.

When updating, the latest version of iOS is installed on the device, and all data remains intact.

When restoring an iPhone, iTunes sometimes displays an unknown error with a number, without correcting which it is impossible to continue working with the mobile device. Depending on the number of the problem that prevented you from restoring your iPhone, there are different ways to fix the problem.

Error classification

Apple support on a special page on the website divides failures by number into several categories. However, you will not find some codes. For example, there is no number 52 on the support page, because iTunes does not crash with such a code. Error 47 is not included in the list, although some users complain that due to a glitch with this number they are unable to restore their iPhone.

If you encounter problem 47, there may be several reasons for its occurrence:

  1. Failure of the modem chip.
  2. Modem processor failure.
  3. Liquid has entered the modem part.

As you can see, error 47 is due to a hardware problem. Therefore, if you encounter failure 47 when restoring your iPhone, take your mobile device to a service center. Even the master does not immediately determine the exact cause problem number 47 appears, so it’s better not to risk trying to repair it yourself.

Communication errors (1671, 3004, 3014, 3194)

If, when restoring an iPhone, iTunes displays a message with numbers 1671, 3004, 3014, 3194 or 9006, then you are dealing with problems that are preventing your computer from establishing a connection with the Apple server or mobile device. If problems 3004, 3014, 3194, 9006 occur, first try restarting your computer. If this does not help, close the applications that are running in the background, leaving only iTunes. Disable your firewall and antivirus. Since failures with numbers 3004, 3014 3194, 9006 occur due to the inability to establish a connection to the server, disabling the firewall will help remove the firewall.

If these methods do not help get rid of failures 3004, 3014, 3194, 9006, then try the following methods:


The extra entry will end with gs.apple.com. If you find one, delete it immediately and save the hosts file. After editing hosts, error messages 3004, 3014, 3194, 9006 should no longer appear when restoring an iPhone. If problems with numbers 3004, 3014 3194, 9006 appear when restoring an iPhone on a Mac computer, then open hosts through the terminal using the command “sudo nano /private/etc/hosts”.

If iTunes displays error 3194 when the recovery line is 2/3 full, then most likely you are faced with a hardware problem - damage to the modem or iPhone power module.

If you cannot restore your device due to problems with the modem, contact a service center for help, as you will not be able to fix the problem yourself.

Errors 14 and 4005

Failures with numbers 14 and 4005 when restoring an iPhone usually occur when problems are detected with connecting the device via USB. Error 14 indicates that during the recovery process, iTunes detected a violation of the integrity of the firmware file. Error 4005 usually indicates that there is some problem with the cable or port on the computer.

To fix error 14 or 4005:

  • Use the original iPhone cable.
  • Connect the device to a different port. Try to use connectors that are located on the rear panel of the system unit, then you will have less chance of errors like 14 and 4005 appearing.
  • Connect your iPhone to another computer.

If error 14 or 4005 persists, try putting your phone into DFU mode before restoring. If this does not help resolve failure 14 or 4005, download the firmware manually and select the desired ipsw file by holding down the Shift key while clicking the “Restore” button.

Errors numbered 14 and 4005 appear when you try to update the firmware by jumping through the version (for example, from iOS 7 directly to iOS 9). To avoid issue 14 or 4005, select the appropriate firmware version.

Error 21

Failure number 21 occurs when the device is incorrectly entered into DFU mode. To eliminate the cause of error 21, use programs like redsn0w to transfer the phone to DFU.

Owners of iPhones that have been jailbroken especially frequently encounter crash 21. In addition, failure 21 may occur due to the fact that the battery is not fully charged. Accordingly, to fix problem number 21, you need to put your smartphone on charge.

We bring iOS devices back to life after unsuccessful installation of iOS 11.

The release of each new major version of iOS has always been accompanied by various problems associated with the transition to the update. Unfortunately, she was no exception to the rule. Many iPhone, iPad and iPod touch users encountered traditional errors upon release: black screen, eternal apple, cyclical reboots, iTunes string stuck on the screen, etc. This guide will tell you how to solve any problem you encountered while installing iOS 11.

About iOS 11 problems

Even when iOS 11 was not even at the testing stage, Apple promised that the update would be less problematic and more stable compared to iOS 10. Now that the final version of iOS 11 has become available to users, we can state the fact that this is indeed the case. However, there are many problems in the system, most of which are quite easy to solve. You can find a complete list of the most common iOS 11 problems and ways to solve them in.

In addition, in addition to iOS 11’s own unique bugs, it suffers from the classic problems of Apple’s mobile operating systems. The latter arise due to failures during the installation of iOS 11, which can appear both during an over-the-air update and an update via iTunes, albeit much less frequently in the case of a “clean” installation of the system.

We are talking about the following very common problems when installing iOS:

  • iPhone gets stuck on boot screen with Apple or iTunes logo.

  • Your iPhone is performing a cyclic reboot.
  • iPhone stops turning on.

Whatever the reason for the problem that turns your iPhone, iPad or iPod touch into a “brick,” it can and should be solved. Fortunately, all of these problems can be solved in one universal way.

Note: all the problems described above can be solved in several ways, but we focused on the simplest, which absolutely all users of Apple mobile devices can use.

An error occurred while installing iOS 11 - what to do

Step 1. Download the free PhoneRescue utility from official website of the program .

Step 2: Install and launch PhoneRescue.

Step 3. Select a section iOS Repair Tools and click the arrow in the lower right corner of the screen.

Step 4. If your iPhone, iPad or iPod touch is already in recovery mode, for example, the Apple or iTunes logo appears on the screen, the utility will detect the device automatically. If not, then you must manually switch to recovery mode. To do this, turn off the device and remove the USB cable from it, hold down the Home button and connect it to the computer with a USB cable while holding the button.

Step 5. Select a recovery type from two options:

  • Standard Mode - fixes most software errors, including freezing at the Apple logo, iTunes, cyclic reboots, etc.
  • Advanced Mode - recovers mobile devices stuck on the Apple logo and black screen, as well as software errors, without data loss.

Step 6: On the next screen, PhoneRescue will automatically detect the model and iOS version of the device connected to your computer. If this does not happen, you will need to manually specify the device type (iPhone, iPad, or iPod touch), model, model number, and installed software version.

The model number of your mobile device can be found on the back cover of the device.

Step 7. Once the device information is entered correctly (automatically or manually), click Download to start downloading the current firmware to which the restoration will be performed. Wait until the download completes.

Step 8. Immediately after the firmware is downloaded, the recovery of your iOS device will begin. Wait for it to finish. Important! Do not disconnect your iPhone, iPad, or iPod touch from your computer until the recovery process is complete.

Ready! Your mobile device itself will let you know when the restoration is complete - it will turn on, requesting activation and initial setup. In this simple way, without having to search for and download the required firmware manually, and also excluding any interaction with iTunes, which is hated by many, an iPhone, iPad or iPod touch can be restored after software failures.

Due to a glitch during the installation of iOS 11, some information from your device may be deleted. At the same time, if a backup copy of the missing data has not been previously created, then there is a risk of losing it forever. However, it is possible to restore content deleted during a failure, using the same utility.

How to recover data deleted if iOS 11 installation fails

Step 1: Connect your iPhone, iPad, or iPod touch to your computer.

Step 2: Launch PhoneRescue, press Recover from iOS Device and an arrow in the lower right corner to begin the process of recovering deleted data from the device.

Step 3: Select the types of data you want to recover. PhoneRescue allows you to recover contacts, call history, messages, notes, reminders, photos, videos, music, books and other various content. Once you have made your selection, click " OK».

Step 4: Wait until the process of recovering deleted files from your device due to a failed iOS 11 installation is completed.

After the analysis is completed, select the data you want to recover and click on one of the buttons in the upper right corner. The button with the image of a smartphone is responsible for restoring data directly to the device, with the image of a computer - to the memory of your computer.
Ready! You have recovered data deleted due to a software failure during the installation of iOS 11. It is noteworthy that recovery from such a failure thanks to PhoneRescue Almost all deleted files are subject to removal, since they were erased quite recently.

Restoring through iTunes is an extreme measure that the user takes if he cannot fix one or another iPhone software glitch. Unfortunately, sometimes this procedure, in turn, is interrupted by an error. What to do if you can’t restore your device through iTunes? In this article we will answer the question.

In general, there are two ways to restore an iPhone using iTunes. The first method is “light” - it assumes that your device is still functional, but, for example, it’s a little buggy, and you want to remove all the bugs using recovery. In this case, you need to connect your iPhone to a PC with iTunes installed, wait until the program recognizes the device (that the gadget has been detected will be indicated by the appearance of a phone icon in the main menu of the program), go to the “Browse” section and click the “Restore” button iPhone."

It's very simple, but there are worse situations. For example, you set your iPhone to update, but forgot that the charge was low and it turned off when the update was not completed, and now the smartphone refuses to respond to any actions, including, it will not turn on. Or, for example, you decided to install a program from an unverified source, but there was a virus there, which, again, turned the device into a “brick” that refused to even turn on. In such situations, is there a chance to return the smartphone to a working state?

Don’t be alarmed, there is a way out of this situation - you just need to switch the device to one of the emergency modes - Recovery Mode or DFU. The first is activated through the platform, the second at the hardware level. That is, if Recovery Mode does not respond, DFU will always come to the rescue.

To activate Recovery Mode, hold down the Home button, then, without releasing it, connect the device to a PC with iTunes; when the program icon and the image of the charge cable light up on the smartphone screen, release Home. At the same moment, iTunes will report that it has detected an iPhone in recovery mode and will offer to start the recovery process.

To put the smartphone into DFU mode, hold down Home+Power, release Power after 10 seconds, connect the iPhone to the computer, and wait for iTunes to signal that the device has been detected in recovery mode (no icons should appear on the screen of the device itself!), after which we release Home and start the procedure.

What to do if iTunes failed to restore iPhone?

Unfortunately, sometimes for some reason iTunes fails to complete the restore procedure - it is interrupted by an error. Don't worry, this is not the end of the world; most likely, the situation can be easily corrected.

There can be many reasons why iTunes refuses to restore a device, but most often the problem is software in nature.

Therefore, first of all, you need to restart the program and computer, and if your iPhone is not bricked, reset it too. Perhaps after this simple step, everything will work out for you.

Software Update

If rebooting does not help, you need to make sure there are no software conflicts - first of all, check what version of iTunes is installed on your computer; perhaps the program simply needs to be updated. It would also be a good idea to update all other software installed on your PC. You can’t even imagine how often outdated programs become the causes of certain failures.

You can update the software on a Windows PC by accessing Windows Update through the Start menu, and on a Mac you need to go to the “Updates” section of the App Store.

Disabling security programs

Another common cause of software conflicts is the overly responsible work of antivirus programs. Your firewall or antivirus may have listed iTunes as a suspicious program and is preventing it from working. To check whether this situation is relevant in your case, disable all security programs during recovery.

Editing the hosts file

And finally, another reason for software failures is errors in the hosts file. We won’t go into lengthy explanations about what this file is and why it is needed, it’s not that important in this case. You just need to make it correct. How? In this article on the Apple support site you can read how to find and edit a file on a Mac; this article will help you find hosts on Windows, and the editing procedure will be the same as for Mac.

Hardware problems

If you are unlucky and your iPhone is not restored despite the fact that you have carried out all the measures described above, then it is time to suspect a hardware problem. First of all, you need to use a different USB port to connect your iPhone. If this does not help, it may be a problem with the connecting cable - note that in this case you must use either the original cable or one marked MFi, which means “Made for iPhone”.

If everything is in order with the cable and ports and you have ruled out software reasons, but the recovery is still interrupted, perhaps the problem is in the PC or iPhone itself. Try using another computer, if the recovery is interrupted on it too, then it’s time for you to pick up your “apple” and take it to the service.

Let's summarize

Using iTunes recovery, you can fix certain iPhone glitches, but sometimes it is not restored. Why can't my iPhone be restored via iTunes? There can be many reasons, both software and hardware. If you were unable to fix the problem yourself, we recommend that you first contact Apple support, and if that doesn’t help, take the device to the service center and, hopefully, they can still fix it!