Sometimes, when restoring, updating, and syncing iPhone, iPod Touch, and iPad in iTunes, unknown errors occur, and you cannot perform the necessary actions with your iOS device. In our directory you will find an explanation of the error and possible options for eliminating it.

Errors that occur during the recovery/update and synchronization process can be either software or related to hardware problems in the iPhone, iPod Touch and iPad: some can be easily fixed (by restarting the computer or changing the USB port), while others require hardware repair.

iTunes errors occur when:

• , iPod Touch and iPad with iTunes;

iTunes Error Classification

1. Communication problems (Network errors)
   iTunes Errors: 17, 1004, 1013, 1638, 3014, 3194, 3000, 3002, 3004, 3013, 3014, 3015, 3194, 3200.
   Notifications may also appear:
   • "An error occurred while loading the software."
   • "The device is not supported for the requested build."

   These errors and warnings appear when you have problems connecting your computer to the Apple update server or to your device.

2. Problems with security software settings (firewall, antivirus, firewall)
   iTunes Errors: 2, 4, 6, 9, 1000, 1611, 9006, 9807, 9844.
   These errors are caused by your antivirus, Windows Firewall, or firewall blocking the connection to Apple servers.
3. Problems with the device's USB connection
   iTunes Errors: 13, 14, 1600, 1601, 1602, 1603, 1604, 1611, 1643-1650, 2000, 2001, 2002, 2005, 2006, 2009, 4005, 4013, 4014, 4016, "invalid response", repeated request for recovery after its completion.
4. Hardware problems
   iTunes Errors:(-1), 1, 3, 11, 12, 13, 14, 16, 20, 21, 23, 26, 27, 28, 29, 34, 35, 36, 37, 40, 53, 56, 1002, 1004 , 1011, 1012, 1014, 1667 or 1669.
   Occurs due to hardware malfunctions with the iPhone, iPad and iPod Touch: with the modem, with the Wi-Fi module, power connector, battery, and so on.

Standard troubleshooting steps in iTunes

You can fix most errors in iTunes yourself:

1. Remove or terminate programs on your computer that may be blocking iTunes from connecting to the Apple update server.
2. Disable security software while restoring or updating iPhone and iPad.
3. Use the original USB cable to connect iOS devices to your computer. Otherwise it is possible. Try replacing it.
4. . On a desktop computer, use the USB ports located on the motherboard. It is not recommended to connect an iPhone or iPad to the USB ports on a multimedia keyboard, USB hub, or on the front panel of the system unit - errors may occur when connecting the device.
5. Completely remove iTunes and all its components using “uninstallers”, Uninstall Tool (for Windows), for example. Then install the latest version of the program.
6. Restore/update iPhone/iPad on another Windows or Mac computer.

The table deciphers all known iTunes error codes when restoring, updating, synchronizing and downloading content from the iTunes Store and provides possible options for eliminating them.

iTunes Error Guide and How to Fix Them

Error number	Most likely cause	Recommended Solution
Error number	Most likely cause	Recommended Solution
1	The firmware is not supported by the device or the iTunes version is outdated	Make sure that you are using the firmware specifically for your device model and
2	The firmware is recognized, but assembled and packaged incorrectly and therefore cannot be used. Occurs when working with custom firmware with hackactivation and unlocking that uses a bad ASR Patch (The problem is relevant for Sn0wBreeze versions below 1.7)	Use different firmware
3	Problem with the modem part of the device
4	iTunes can't connect to Apple service servers	It's possible that third-party programs are blocking your computer's ports and preventing iTunes from connecting to Apple servers. Check the settings in the hosts file in /windows/system32/drivers/etc/ for the presence of records like “xx.xxx.xx.xxx gs.apple.com”. If the line is present, precede it with a # sign and save your changes. Try again
5, 6	It is impossible to install the firmware due to damaged boot logos, or because the device is turned on in the wrong service mode (for example, if the firmware is intended for DFU Mode, and you try to recover via Recovery Mode)	, if it doesn’t help, create your own firmware or download another one
8	The firmware is not supported by the device (for example, you downloaded the firmware for the wrong generation of the device)	Download the firmware supported by your device model
9	Kernel panic in an iOS device when working with firmware. Usually occurs when data transfer via the USB cable is interrupted, or when the firmware is incompatible with the selected recovery mode	Restore the firmware via Firmware Update Mode (DFU Mode). Check the mechanical connection of the device to the computer. Connect the cable to a different port or replace the USB cable
10	The custom firmware was assembled incorrectly due to which the low-level LLB bootloader was damaged or completely missing
11	A number of files necessary for downloading were not found in the firmware ipsw file	Create custom firmware yourself, or download another custom firmware
13	Problem with the USB cable or 30-pin (lightning) connector, or an attempt to install the beta version of iOS from Windows	Replace the standard cable or change the USB port. Disable USB 2.0 support in your computer's BIOS
14	During the flashing process, a violation of the integrity of the firmware ipsw file was detected	Disable antivirus programs, disable the firewall, change the USB cable or connect the iOS device to a different computer port, download another firmware
17	Updating from one custom firmware to another custom firmware	To update to custom firmware, use recovery mode () or firmware update mode (DFU Mode)
18	Your iOS device's media library is damaged	In most cases, only flashing will help
19	"iTunes could not sync to iPhone '[iPhone name]' due to an unknown error (-19)." The error occurs after updating iPhone 3G, iPhone 4 to a later version of iOS, during a backup while syncing the iPhone with iTunes.	Uncheck “Sync automatically if iPhone is connected” on the “Browse” tab in the “Devices -> Connected device model” menu in iTunes, remove and connect the iPhone. Then sync again. If the error repeats, you need to restore the device to new firmware; before doing this, create a backup copy in iCloud so that you do not lose user data after restoration.
20	The device is enabled in Recovery Mode instead of DFU Mode	Turn your device into DFU Mode
21	A DFU mode error occurred during the jailbreak process. Error 21 occurs due to hardware problems (dead battery, low charge).	To enable the device in DFU Mode, use the Pwnage Tool, sn0wbreeze or redsn0w utilities. If the above measures do not help, you should fully charge the battery; if this does not help, the device’s battery will need to be replaced.
23	Can't read device IMEI or MAC address (at least iTunes can't do it)	If the problem persists on other firmware versions, there is most likely a hardware problem.
26	The custom firmware was assembled incorrectly and, as a result, an error occurred when accessing NOR memory	Create custom firmware yourself, or download another custom firmware
27, sometimes 29	Cyclic error in iTunes versions 8.0 to 9.1	Update iTunes to version 10 or later
28	Mechanical damage to the bottom cable or dock connector in the device	Contact an authorized service center
29	Hardware problem with the battery, bottom cable, or power controller	Contact an authorized service center to replace the battery, cable or power controller
31	It is impossible to take the device out of DFU mode. Most often occurs due to hardware problems	Contact an authorized service center
34	Insufficient hard drive space to install software	Free up space on the drive where iTunes is installed
35	Incorrect iTunes folder permissions in Mac OS X	Run Disk Utility and perform permission repair. (in terminal.app enter the command: sudo chmod -R 700 /Users//Music/iTunes/iTunes Media, where is the user name)
37	The low-level bootloader (LLB) in the firmware does not match the device model	Create custom firmware yourself, or download another custom firmware
39, 40, 306, 10054	No access to activation and signing servers	Disable Windows Firewall and antivirus programs.
54	Software failure when transferring data from the device. In most cases it occurs on unauthorized computers or when transferring hacked applications	Delete "old" backups. Deauthorize your computer from the iTunes Store (Store menu in iTunes) and try again
414	Age limit for downloaded content	In yours, change your year of birth (in iTunes in the “Store -> View My Account” menu)
1002	Unknown error when copying firmware files to the device	Repeat the flashing procedure
1004	Temporary problems on Apple servers (SHSH hashes for the device were not received from the server)	Repeat the flashing procedure later
1008	Apple ID contains invalid characters	Change your Apple ID without using prohibited characters. Try not to use anything other than Latin letters and numbers in your Apple ID
1011, 1012	Hardware problem with the modem part of the iPhone or iPad	Try it. If the error persists, contact the service center
1013-1015	iTunes trying to downgrade modem version on iPhone/iPad	The flashing was successful, but the iPhone/iPad cannot boot to iOS on its own with a downgraded modem firmware. In the TinyUmbrella utility, use the “Kick Device Out of Recovery” function.
1050	Apple activation servers are temporarily unavailable	Try activating your device later
1140	Problem syncing photos from iPhoto on Mac OS X	Delete the iPod Photo Cache folder (from the context menu of the iPhoto library file, select “Show Package Contents” and delete the folder
1394	Damage to system files on the device as a result of an unsuccessful jailbreak	Restore your device and repeat the jailbreak procedure
1413-1428	Error when transferring data via USB cable	Check the USB connection of the device to the computer, the integrity of the cable and the working condition of the USB port. Change port
1430, 1432	Device not recognized	May indicate a hardware problem. Replace the USB cable, connect the device to a different USB port, connect the device to another computer
1450	Cannot make changes to iTunes library file	In Mac OS X, restore permissions; in Windows, check the owner and permissions of the iTunes library folder
1600, 1611	Recovery to custom firmware is carried out in DFU Mode, although it should be done from Recovery Mode	Enter your device into Recovery Mode and try again
1601	iTunes cannot gain full access to the device	Disable all background processes, change USB port or USB cable, reinstall iTunes
1602	iTunes was unable to detect your device while preparing to update	Check the hosts file for entries like “xx.xxx.xx.xxx gs.apple.com”, if there are any, comment them out (insert a “#” symbol before the line). Disable all background processes, change USB port or USB cable
1603, 1604	Trying to restore a device without jailbreak to custom firmware	Run on current firmware. Please note: jailbreaking using Spirit and on the JailbreakMe website is not complete and also leads to similar errors.
1608	iTunes components are damaged	Reinstall iTunes
1609	The version of iTunes that works with your device is very outdated	Update iTunes to the latest version
1619	iTunes cannot work with the device in DFU mode, but in normal mode it successfully recognizes it	Update iTunes to the latest version
1644	The firmware file is accessed by third party programs	Close all programs running in the background, turn off your firewall and antivirus, and restart your computer
1646	iTunes could not recognize the device in active mode	Reboot your iOS device, restart iTunes
2001	Problem with Mac OS X drivers	Update Mac OS X to the latest version
2002	iTunes access to the device is blocked by other system processes	Close running programs, disable antivirus, restart your computer
2003	USB port problem	Connect the device to another USB port or another computer
2005	USB cable is damaged	Replace cable
3000, 3004, 3999	No access to the firmware signing server	Access blocked by third party application, disable firewall and antivirus
3001, 5103, -42210	iTunes can't load video due to hashing errors	Update iTunes, find and delete the system folder “SC Info” ( Windows 7: ~\Documents and Settings\All Users\Application Data\Apple Computer\iTunes ; Mac OS X: ~/users/Shared/SC Info)
3002,	It is not possible to request a suitable SHSH hash from the firmware signing server. The error occurs if the hosts file is configured to redirect iTunes to the Cydia server manually or using TinyUmbrella, but the server does not have saved hashes for this firmware	Close TinyUmbrella and delete (comment out) the line like “xx.xxx.xx.xxx gs.apple.com” from the hosts file
3014	The response from the Apple activation server takes too long to arrive	Restart your computer, force update your Internet connection. If the error occurs already during the recovery process (the status bar is filled on the device screen under the logo), download and install Hotspot Shield. Run the program and try recovery again.
3123	iTunes can't rent videos	Deauthorize your computer from iTunes and log in again
3191	QuickTime components are damaged	Reinstall QuickTime and its components
3195	Digital SHSH certificate is damaged	Restore your device again via iTunes
3200	The custom firmware lacks the necessary images	Create custom firmware yourself, or download another custom firmware
4000	Conflict with other connected USB devices	Try disconnecting all USB cables from the computer, with the exception of the keyboard, mouse and iOS device
4005, 4013	Critical error during update/restore	Try restoring the device in DFU mode, preferably using a different USB cable
4014	The device's connection to iTunes is broken during a restore or update. iTunes can't put iOS device into recovery mode	Perform the restore/update on a different computer and/or with a different USB cable.
5002	iTunes Store Error: Payment Unable to Complete	Check your credit card information
8003, 8008, -50, -5000, -42023	Cannot recover file download from App Store or iTunes Store	Empty the contents of the iTunes Media/Downloads folder ( Windows 7: ~\Users\Username\Music\iTunes\iTunes Media\Downloads)
8248	iTunes plugins that are incompatible with the new version interfere with the program's operation.	Remove installed iTunes plugins. Often the problem is related to the Memonitor.exe process, end it
9006	Problem uploading firmware to iTunes	Disable firewall and antivirus, download iOS manually
9807	iTunes is not communicating with the digital signature verification server	Disable your firewall and antivirus
9813	Keychain Access certificates are damaged or invalid in Mac OS X	Clear the Safari cache (menu “Safari -> Reset Safari”)
11222	Time limit exceeded for connecting to iTunes services	Disable your firewall and antivirus, update iTunes, sign in to the iTunes Store again with your Apple ID
13001	Permanent damage to the iTunes library system file	Reinstall iTunes or delete the iTunes Library file and files with the extension .itdb in the iTunes folder
13014, 13136	The system is loaded with processes that interfere with the normal operation of iTunes	Close background applications, disable firewall and antivirus, restart your computer
13019	iTunes library error when trying to sync	Check your iTunes library for damaged or incompatible files
20000	iTunes conflict with Windows graphical shell	On Windows, enable the default theme
20008	iTunes conflict with TinyUmbrella utility	Update TinyUmbrella to the latest version and restart your computer
-1	Critical modem error	Occurs when updating an iPhone without upgrading the modem firmware version. Use or to take your iPhone out of Recovery Mode. If the utilities do not help, the problem is hardware and the iOS device requires repair at an authorized service center.
-35, -39	Can't download music from iTunes Store	Update iTunes to the latest version, sign in to the iTunes Store again with your Apple ID, and disable your firewall and antivirus
-50	There is no connection between iTunes and Apple servers	Update iTunes to the latest version, re-sign in to the iTunes Store with your Apple ID, disable your firewall and antivirus, reinstall iTunes and QuickTime
-3198	The integrity of the downloaded files has been compromised	Retry downloading content through iTunes
-3221	Incorrect permissions on iTunes program file in Mac OS X	Run Disk Utility and restore permissions
-3259	iTunes Store connection timeout limit exceeded	Check your internet connection
-9800, -9808, -9812, -9814, -9815	iTunes Store purchase time error	Set the correct date and time on your computer
-9843	iTunes Store download blocked by security system	In iTunes, sign out of your account, restart iTunes, and sign back into the iTunes Store with your Apple ID
0xE8000001, 0xE800006B	The device was unexpectedly turned off	Disconnect your device from your computer, restart iTunes, and reconnect your device
0xE8000013	Error syncing iOS device with iTunes	Re-sync
0xE8000022	iOS system files are damaged (irreversibly)	Restore your device
0xE800003D	Incorrect access rights to cellular operator settings files (Carrier Bundles)	If your iOS device is jailbroken, correct the access rights to the settings files of cellular operators (on iPhone/iPod Touch/iPad: /System/Library/Carrier Bundles), delete all custom Carrier Bundles of operators, restore the device
0xE8000065	Error when flashing the device with a custom build of iOS. As a rule, this error occurs when working with firmware compiled in sn0wbreeze	Restart your computer, try again, if unsuccessful, create the firmware again
0xE8008001	An attempt was made to install an unsigned (hacked) application. Occurs when installing applications on a jailbroken device	Install AppSync from Cydia for your version of iOS
0xE8000004 (iPhone 4)	The error occurs most often when activating an iPhone 4.	Solved using a linked downgrade to the GeekGrade_IPSW firmware followed by loading from Boot_IPSW to redsn0w. The entire procedure is described in

There are several common errors that may occur when backing up your iPhone or iPad to iCloud. The strangest of them is related to the fact that the copy creation process does not complete, while iOS does not give any recommendations on how to fix the problem. How to get rid of such an error is described in this instruction.

Method 1: Delete the previous backup

Step 1. Go to menu " Settings» → iCloud → « Storage».

Step 2. Select " Control", and then a backup copy of your device, which was created earlier.

Step 3. On the page that opens, click “ Delete copy" Note that the button appears after a short loading time.

Step 4: Confirm deletion.

Immediately after this, try to create a new backup in the " Settings» → iCloud → « Backup copy».

Method 2: Create a backup in iTunes

The error related to the inability to create a new backup in iCloud can often be solved by creating a copy through iTunes and then activating the backup in iCloud.

Step 1: Connect your iPhone or iPad to your computer and launch iTunes.

Step 2: In the iTunes window, select your device.

Step 3: On the "" tab Review"check the box" This computer" and press " Apply».

Step 4: Click " Create a copy now" and wait for the backup process to complete.

Step 5: On your mobile device, go to the menu " Settings» → iCloud → « Backup copy" and activate the switch " iCloud backup».

After enabling the backup feature, the problem with the inability to create a backup copy should disappear.

If you are an advanced owner of an iPhone/iPad/iPod, then you have probably encountered the problem of backing up your gadget at least once in your life. What to do if you encounter an error, for example, this plan: iTunes was unable to save the iPhone backup. If we take into account that strictly following the instructions in the pop-up menus usually does not lead to eliminating the problem, we suggest using the following method to create a normal backup of your device.

Step-by-step instructions for eliminating an unpleasant error when creating an iPhone/iPad/iPod backup in iTunes

Of course, first of all you need to update iTunes to the latest version. This action can already help with solving the problem, since the inability to record a backup may directly depend on the “incompatibility” of the versions of iTunes and the new iOS. You can update on the official Apple website.

It doesn’t hurt to rename the previously created backup file so that its name is different from the newly created copy (for example, “BACKUP_OLD”). You can find the backup folder using the following path:

For OS X:
~/Library/ApplicationSupport/MobileSync/Backup/

For Windows Vista, 7, 8:
UsersUSERNAMEAppDataRoamingApple ComputerMobileSyncBackup

By selecting the appropriate gadget in the iTunes menu and clicking on the “Back up now” button, save a manual backup copy.

Another fairly common problem when creating a backup copy of a device is that the computer is simply not able to recognize your gadget. There is only one, quite simple, explanation: the problem probably arose in the USB contact. To resolve the issue, you can simply use another USB port on your laptop or computer, or take another Lightning cable, since sometimes it happens that the damage lies in the wire itself.

Perhaps this method is the most reliable, but it may also require certain financial costs, since the free memory provided in the iCloud service is limited to only 5 GB. But as practice shows, this often turns out to be quite insufficient.

I was literally forced to write this instruction by a problem with a backup copy, which has already happened three times in 16 months of active use of the iPad. I didn’t plan to write instructions, so there will be practically no traditional screenshots. The strangest thing is that some of the nuances are not mentioned even in the Apple help, so my instructions will definitely be useful to someone, since questions about this problem are constantly asked.

So, one fine day, out of the blue (and that’s exactly what happened to me), the following message appears in iTunes:

True, my message was “iTunes was unable to create a backup copy of the iPad...” and the reason seemed to be different, but it doesn’t matter. There is a problem with creating a backup copy and it needs to be solved somehow.

Reasons for the error

1. The backup file (or files) is locked

2. The backup file(s) is corrupted

Solution

1. It is logical that your first action should be to restart your computer. At the very least, if some process in the operating system is blocking the backup files, then a reboot will probably solve the problem.

This process is not fast (it took me about three minutes to delete) if the number of files is large. At this time, iTunes freezes a little.

If there is no backup in the device tab or it is not deleted, then you can remove it manually from the operating system. Also, the paths below are useful for those who want to save a backup copy for one reason or another and want to move it to another location on the disk.

So, backups are stored:

MacOS:
/Users/[username]/Libraries/Application Support/MobileSync/Backup/

Windows XP:
\Documents and Settings\[username]\Application Data\Apple Computer\MobileSync\Backup\

Windows Vista and Windows 7:
\Users\[username]\AppData\Roaming\Apple Computer\MobileSync\Backup\

Further nuance: If you do not find this path in Windows Explorer or in Finder Mac OS, then the easiest way to solve the problem is with file managers. For Windows you can use Total Commander, for Mac Os - muComander. In these programs, you must enable the display of hidden files.

So, we deleted or transferred old files.

We try to connect the iPad to iTunes again and create a backup copy. You can select your iPad on the left side of iTunes, right-click on it and select “Backup” from the drop-down menu.

If the error does not disappear (and two out of three times for me the error did not disappear), trying to restart the iPad.

Press the iPad and Home buttons at the same time and hold until the red slider appears - turn off the iPad.

If the iPad freezes during this process and does not turn off (I had this happen too), then press the power button and Home button again and hold it. The iPad will turn off.

Let's turn it on. Let's create a backup...

If all else fails and the error appears again: “iTunes was unable to back up the iPad...”.(I didn’t get to this point, but it’s still worth continuing the instructions)... You can try to create a new user with administrator rights on the computer and make a backup on his behalf.

If the problem was solved under a new user and a backup copy is created without problems, then the cause of the error may be as follows: the original user has limited rights on the computer or specifically in the folder in which he is trying to create a backup copy. Solution: understand the reason for the lack of rights...

Also, beginners will find the information given in the article useful: iPad backup, which explains why it is needed at all and how to completely disable it, etc.

Conclusion: This instruction does not claim to be complete, although the likelihood that it will help you with a similar problem is very high.

Mobile device users often have to face the problem of iPhone not making a backup. As a result, various messages appear in iTunes that indicate various problems.

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It is important to remember that before carrying out any operations, it is better to save an existing backup copy, which will allow you to restore the device software if necessary.

Possible causes and their elimination

1. Backup files have been locked or corrupted. To fix the error, you will initially need to restart your PC, which will solve the problem if files are temporarily blocked. If the reboot does not bring results, you will have to repeat the following algorithm:

• Delete the existing backup in iTunes settings (Settings -> Device tab) or move it to another folder.
• After that, connect your iPhone to iTunes again to create a new backup.
• If the above manipulations did not help, then you will need to create a new user who will have administrator rights. Subsequently, backups must be made on his behalf.

2. It happens that the iPhone does not create a backup copy due to outdated iTunes, Mac or iOS software. To fix the error, just download the latest version and install the necessary updates.

3. The inability to backup may be due to different time zones that are set on the PC and iPhone. Fixing the problem is quite simple - just check the box next to the line “Automatic change to daylight saving time”.

4. When backing up using iCloud, an error may occur if the account password cannot be verified, for example, after the user resets the password. To solve the problem, just log into your account again.

5. There are times when the error is related to security settings. To fix it, you will have to install updates or turn off the system for a while, and then try again.

6. The inability to create a backup copy may be due to lack of free space.

If all else fails, it is better to contact Apple support staff.