Failed to restore iPhone unknown error 3503. What to do if iPhone gives an error in iTunes when restoring or updating? You may be interested in this

Almost every user iTunes faced with the fact that the program refused to perform any action and showed a pop-up window with the number of the error that occurred ...

What these iTunes errors mean and how to solve the problems that have arisen - more on that below ...

Reason for error 1: The iTunes version is too old or the firmware does not match the device.

Solution for error 1: Update iTunes to the latest version, download the firmware again (make sure to download the software version for the device you want).

Reason for error 2: The downloaded firmware is not packed correctly.

Solution for error 2: Most likely, you are trying to install custom firmware (not original build). Just download the original firmware, or use third-party software to install custom firmware.

Reason for error 3: The user can observe this error upon completion of the iPhone, iPad firmware, which may indicate a faulty modem inside the device.

Solution for error 3: In fact, the error is similar to error -1 and if the latter is corrected by the recovery mode, then error # 3 can be solved only in the service center by replacing the modem.

Reason for error 5: The firmware is not installed in the mode for which it is intended. (DFU Mode / Recovery Mode).

Solution for error 5:

Reason for error 6: Firmware installation error due to damaged Boot / Recovery logo (occurs when installing custom firmware). Solution to error 6: Download the original firmware, or try to install in different modes (DFU Mode / Recovery Mode).
Reason for error 8: iTunes cannot install the firmware due to the fact that it is not suitable for this device (for example, installing the firmware from the iPod Touch on the iPhone).

Solution for error 8: Download the original firmware for your device model.

Reason for error 9: Kernel Panic. Critical kernel error. Analogue of Windows blue screen. May occur if the data transmission on the cable is interrupted at the time of installation. Or when using poorly assembled custom firmware.

Solution for error 9: Check USB port and connector on iPhone / iPad / iPod Touch.

Reason for error 10: No LLB (Low Level Bootloader) was found in the firmware, installation is impossible.

Solution for error 10: Rebuild custom firmware or use original one.

Reason for error 11: Some files were not found in the firmware.

Solution for error 11: Rebuild custom firmware or use original one.

Reason for error 13: The cable or USB port is damaged. Or you are trying to install the beta version of iOS from under Windows.

Solution for error 13: Change USB and cable. Disabling USB 2.0 in BIOS can also help.

Reason for error 14: Broken firmware file. Either a cable or USB port problem.

Solution for error 14: Disable your antivirus. Change USB and cable. Try the original firmware.

Reason for error 17: An attempt was made to update non-original firmware (custom).

Solution for error 17: In this case, you need to restore the device from DFU or Recovery Mode.

Reason for error 20: The device is in Recoveru Mode.

Solution to error 20: In this case, you need to enter DFU Mode.

Reason for error 26: Errors when assembling the firmware.

Solution for error 26: Load another firmware.

Reason for error 27 and 29: An iTunes error that occurs in older versions of the program.

Solution to error 27 and 29: Update iTunes to the latest version.

Reason for error 28: Defective 30-pin / Lightning cable or connector in the device.

Solution for error 28: Repair at a service center or replacing the 30-pin / Lightning cable.

Reason for error 34: Insufficient space for software installation (on hard disk).

Solution for error 34: Free up some space for software installation (on the disk where iTunes is installed).

Reason for error 35: Incorrect folder permissions (the problem occurs on Mac OS).

Solution for error 35: In terminal.app, enter:
sudo chmod -R 700 / Users // Music / iTunes / iTunes Media
, where is the username.

Reason for error 39: The error occurs when syncing photos.

Solution for error 39: Several of your photos are causing this error, you need to find them using the de-sync method.

Cause of error 40, 306, 10054: Problems connecting to the server.

Solution for error 40, 306, 10054: It is necessary to disable anti-virus software, proxies, clear the browser cache.

Reason for error 54: Occurs when you transfer purchases from your device to iTunes.

Solution for error 54: There are a number of things you can try:

  • iTunes\u003e Store\u003e Authorize This Computer
  • Delete C: \\ Documents and Settings \\ All Users \\ Application Data \\ Apple Computer \\ iTunes \\ SC Info
  • Exclude music from synchronization by deleting the folder (then you can return the folder to its place)
Reason for error 414: Content is intended for people over 17 years old.

Solution for error 414: Agree to these rules or change your date of birth in your account settings.

Reason for error 1004: Temporary Apple server problems.

Solution for error 1004: Flash later.

Reason for error 1008: The Apple ID has invalid characters.

Solution for error 1008: To avoid this error, you must use only Latin letters and numbers in your Apple ID.

Reason for error 1011, 1012: IPhone / iPad modem problem.

Solution for error 1011, 1012: Hardware problem requiring repair.

Cause of error 1013, 1014, 1015: When checking the firmware after updating, a mismatch error occurred.

Solution for error 1013, 1014, 1015: You need to download the TinyUmbrella utility. Use the Kick Device Out of Recovery function in it.

Reason for error 1050: Apple's activation servers are temporarily unavailable.

Solution for error 1050: Activate the device after a while.

Reason for error 1394: The operating system files of the device are damaged.

Solution for error 1394: Restore the device or try to jailbreak again if the error appeared after it.

Reason for error 14 **: Cable data transmission error.

Solution for error 14 **: Either the firmware file is broken (you need to download another one), or the usb cable is broken.

Cause of error 1600, 1611: The error occurs when installing custom firmware via DFU mode.

Solution for error 1600, 1611: Try installing via Recovery Mode.

Reason for error 1609:

Solution for error 1609:

Reason for error 1619: iTunes is too old for your device.

Solution for error 1619: Update iTunes to the latest version.

Reason for error 1644: The firmware file is accessed by third-party programs.

Solution for error 1644: Restart your computer, turn off antivirus software if you are not working with the firmware file yourself.

Reason for error 2001: The error occurs on Mac OS. Driver problem.

Solution for error 2001: Update Mac OS.

Reason for error 2002: Third-party processes work with iTunes, thereby blocking access.

Solution to error 2002: If it is not an antivirus, then restart your computer.

Reason for error 2003: Problems with the USB port.

Solution to error 2003: Use a different USB port.

Reason for error 2005: Data cable problems.

Solution to error 2005: Use a different data cable.

Reason for error 2502 and 2503: Installer errors due to limited access to temporary files. Found on Windows 8.

Solution for error 2502 and 2503: The problem is solved by adding full user access to the C: \\ Windows \\ Temp folder. This is done as follows:

  • right-click on the C: \\ Windows \\ Temp folder;
  • go along the path "Properties - Security - Change" and select your user;
  • put a tick in front of "Full access", then you must save the changes.
Reason for error 3000, 3004, 3999: Apple server access error.

Solution for error 3000, 3004, 3999: Access is blocked by some program. For example antivirus. Disable them, reboot.

Reason for error 3001, 5103, -42110: iTunes cannot download videos due to hashing errors.

Solution for error 3001, 5103, -42110: Update iTunes
Delete the SC Info folder:

  • Win7 - C: \\ Documents and Settings \\ All Users \\ Application Data \\ Apple Computer \\ iTunes
  • Vista - C: \\ Program Data \\ Apple Computer \\ iTunes
  • Mac OS - / users / Shared / SC Info
Reason for error 3002, 3194: No hashes stored on the server. (Apple or Saurik).

Solution for error 3002, 3194: Upgrade to a stable firmware version. Remove line: 74.208.105.171 gs.apple.com from hosts file to:

  • Win - C: \\ Windows \\ System32 \\ drivers \\ etc \\ hosts
  • Mac OS - / etc / hosts
Turn off your antiviruses, try to restore using shift. Also, an error can occur when trying to rollback to a previous iOS version. Recently, downgrading is not possible, calmly upgrade to the latest version of iOS. A complex error, the explanation for which was highlighted in a separate article -.
Reason for error 3123: Problems with computer authorization in iTunes.
Reason for error 3195: Error getting SHSH.

Solution for error 3195: Try to update the firmware again.

Reason for error 5002: Refused payment.

Solution for error 5002: Look for errors in the filled in bank card details.

Cause of error 8008, -50, -5000, -42023: The firmware upload session timed out.

Solution for error 8008, -50, -5000, -42023: Delete the Downloads folder in your iTunes Media folder.

Reason for Error 8248: The problem occurs if plugins for iTunes are installed that are incompatible with new versions of the program.

Solution for error 8248: Remove iTunes plugins. It often happens that the problem is in the Memonitor.exe process, close it.

Reason for error 9006: Something is blocking the download of the firmware.

Solution for error 9006: Download the firmware from another location, or solve the problem with antivirus software.

Reason for Error 9807: Something is blocking the verification of signatures and certificates.

Solution for error 9807: Solve your antivirus problem.

Reason for Error 11222: Access is blocked.

Solution for error 11222: Disable your firewall and antivirus.

Cause of error 13014, 13136, 13213: Something is interfering with iTunes.

Solution for error 13014, 13136, 13213: Refresh iTunes, restart your computer, turn off your antivirus software. The problem should go away.

Reason for error 13001: The library file is damaged.

Solution for error 13001: Delete your iTunes library files.

Reason for error 20000: The error can occur when using a non-standard Windows theme.

Solution to error 20000: Install the default Windows theme.

Reason for error -39: iTunes cannot download music from the iTunes Store.

Solution for error -39:

Reason for error -50:There are problems connecting to the itunes.apple.com server.

Solution for error -50: Update iTunes. Relog your account. Turn off your antivirus software.

Reason for error -3259: Connection timed out.

Solution for error -3259: Update iTunes. Check your internet connection. Delete unfinished downloads, logging out / logging in to your iTunes account may help. If that doesn't help, try restarting your computer.

Reason for error -9800, -9812, -9815, -9814: Time and date are not set correctly in the system.

Solution for error -9800, -9812, -9815, -9814: Set the correct date and time in the system settings.

Reason for error 0xE8000022: Corrupted iOS files.

Solution for error 0xE8000022: Rebuild the firmware.

Cause of error 0xE8000001, 0xE8000050:

Solution for error 0xE8000001, 0xE8000050: Reinstall the AppSync tweak from Cydia.

Cause of error 0xE8008001: The problem occurs when installing apps on a jailbroken device.

Solution for error 0xE8008001: Install the AppSync tweak from Cydia.

Reason for error 0xE8000013:Synchronization error.

Solution for error 0xE8000013: Re-sync your device.

Reason for error 0xE8000065:An error in the operating system.

Solution for error 0xE8000065: Restart your computer, use a different USB port. If it does not help, then the problem is in iTunes and you will need to restore the firmware.

If you did not find the answer to your question or something did not work out for you, and there is no suitable solution in the comments below, ask a question through our

The 3503 itunes error started to occur on Apple mobile devices from the end of September 2017. A similar nuisance manifests itself when trying to update this application - the equipment enters the "Recovery mode" state, the message "error 3503 iphone" or its equivalent appears on the screen, does not respond to the owner's actions.

Naturally, it is unpleasant when a person who has bought himself a smartphone or tablet for a fairly serious amount of money cannot use the planned opportunities and all the rich functionality of such equipment. Therefore, it is necessary to understand - itunes error 3503: how to fix it?

What is needed to correct the situation

Some people who had an unknown error 3503 on their mobile device immediately rushed to write to technical support.

The answer discouraged them, as it represented some form of official reply:

  1. Try to rearrange the SIM card to another model.
  2. Try to connect to a PC, if it doesn't work, find a second computer and try on it.

That is, no real instructions for eliminating this problem were provided, and the developer company suggested waiting an indefinite time period while its specialists figure out the situation.

Naturally, most users of this technique are clearly not satisfied with this answer. Fortunately, a solution exists in a situation where the iPhone could not be restored - error 3503.

To do this, you will need: a problem gadget, a personal computer and an Internet connection.

Effective treatment method

So what to do when an error occurs while restoring iPhone 3503? The first option involves performing the following manipulations:

  1. Go to the Network, search, download and install the 3uTools special application.
  2. After the completion of the installation process, the program must be updated by clicking on the "Check Update" button.
  3. On a mobile device, simultaneously hold down the shutdown and Home buttons.
  4. Wait for the brand logo to appear, release the shutdown button.
  5. As soon as the picture on the screen changes, remove your finger from the second button.
  6. Points 3,4 and 5 should be carried out with the 3uTools program already running and a connection with a PC.
  7. Using the wedge on the "Flash" button, start downloading and installing the problematic application through this software.
  8. Wait for the completion of the started process. Then follow the recommendations from the updated mobile technology.

Alternatively, you can use several more similar tools, which also imply the active use of a PC and transferring the mobile phone to DFU mode, as described in the previous instruction:

  • Recover iphone (error 3503) with iMyFone iOS

Naturally, this software should initially be found, downloaded and installed. After starting the tool:

  1. Switch to standard mode, accessible from the main screen.
  2. Transfer the problematic technique to DFU as described above.
  3. Start the installation of a new firmware - the program will automatically detect the connected mobile phone or tablet.
  4. After completing the installation procedure, click on "Start fixing".

A few minutes will pass and the error message should disappear from the screen.

  1. Fixes funded by ITunes
  2. Once again, switch the connected iPhone to the computer into DFU mode.
  3. Activate the launch of the iTunes application on the PC.
  4. The program will analyze all connections and detect the connected gadget. Choose it.
  5. Go to "Summary" and click on "Restore".

After the automatic restart of mobile equipment, the conflict situation should be eliminated.

For a few more possible solutions, you can try the following:

  1. Make sure your internet connection is reliable.
  2. Update iTunes to the most current version.
  3. Attempt to install the problematic update after the "Find My iPad / iPhone" option is disabled.

The last treatment option can be implemented by going to the settings menu, where you must first go to "iCloud", and then move the enabling slider to the inactive state for the required function. After confirming this action, you can try again to start the previously interrupted procedure.

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Iphone error codes part two. Possible Solution

Let's proceed to the second part of our collection of iphone errors and analyze errors from 414 - 20008 and try to find a solution to these iphone errors.

Error 414

You are not allowed to upload content with a rating of 17+ to the device

Solution: Correct the age information in your iTunes account (menu "Store-View My Account")

Error 1002

An error occurred while copying the firmware files to the device

Solution: Start the flashing procedure again

Error 1004

Apple servers were unable to send SHSH hashes for the device

Solution: Try to flash later

View my account ")

Error 1011, 1012

IPhone / iPad Modem Not Responding

Solution: Try restarting your device. If the error persists, then there may be a hardware problem.

Error 1050

Apple activation servers are unavailable

Solution: Try to activate the device later

Error 1140

Can't sync photos from iPhoto

Solution: In the context menu of the iPhoto library file, select Show Package Contents and empty the iPod Photo Cache folder

Error 1394

System files corrupted due to unsuccessful jailbreak

Solution: Restore firmware and jailbreak again

Error 1413-1428

Problems with data transfer via USB cable

Solution: Check the integrity of the cable and the health of the USB port

Error 1608

Corrupted iTunes components

Solution: Requires reinstallation of iTunes

Error 1609

ITunes version is too old to work with the device

Solution: Update iTunes to the latest version

Error 2001

Mac OS X drivers block access to the device

Solution: Update Mac OS X to the latest version

Error 2002

ITunes access to the device is blocked by other system processes

Solution: Close all other programs, turn off antivirus, restart your computer

Error 3123

iTunes can't rent videos

Error 3195

Received SHSH hash corrupted

Solution: Try to start flashing again

Error 3200

Required images are missing in custom firmware

Solution: Download another custom firmware or create it yourself again

Error 4000

Conflict with other USB devices

Solution: Try to disconnect all other USB devices from the computer, except for the keyboard, mouse and USB gadget

Errors 4005, 4013

Critical update / restore error

Solution: Try to restore the device in DFU mode (Home + Power for 10 seconds, then Home for another 10 seconds). It is advisable to try a different USB cable.

Error 4014

The firmware file cannot be uploaded to the device

Solution: Try to flash on a different computer and / or with a different cable

Error 20008

Error 0xE800003D

iTunes conflicts with TinyUmbrella utility

Solution: Update TinyUmbrella and restart your computer

Error 0xE800003D

iPhone or iPad cannot access the settings files of the cellular operators

Solution: Correct access rights (if the gadget is jailbroken), delete all custom bundles of operators, as a last resort, restore the firmware

Error 0xE8000065

Error while trying to install custom firmware

Solution: As a rule, an error occurs when working with firmware created in sn0wbreeze. Reboot the computer, try to flash again, in case of failure, create the firmware again

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Iphone error codes part one. Possible Solution

Hello! Often, when performing various operations, the iPhone shows unknown errors. We have collected the most common iphone error codes and offer possible solutions for iphone errors

Error 1

This error can appear if you decide to flash your iPhone with an unsuitable firmware version!

Solution: Make sure the firmware is compatible with the iPhone. If you are sure it is up to date, then simply update iTunes to the latest version.

Error 2

This error is very rare, because it appears when flashing the iPhones of previous generations to an unofficial firmware with hacking and an ASR patch.

Solution: Find a different firmware.

Error 3

Modem reports a fault

Solution: Most likely, only contacting an authorized service center will help

Error 4

iTunes cannot connect to Apple service servers

Solution: Check if third-party programs are blocking access to albert.apple.com, photos.apple.com or phobos.apple.com servers

Errors 5, 6,

The firmware cannot be installed either because the boot logos are damaged, or because the device is entered into the wrong service mode (for example, the firmware is designed for DFU Mode, and you are trying to recover through Recovery Mode)

Solution: Enter the device in DFU Mode, if it does not help - download another firmware

Errors 6, 10

This error occurs when installing an unofficial firmware with boot recovery logos different from the standard ones.

Solution: Reflash the iPhone using a different unofficial firmware without custom boot recovery logos, or use a verified custom (unofficial) firmware.

Error 8

The firmware matches the iTunes version, but does not match the device (for example, it is for the wrong device generation)

Solution: Download the firmware version corresponding to your device model

Error 9

Kernel Panic - This error is similar to the "blue screen of death" in Windows computers. It means that there was a failure in the kernel of the iOS system.

Solution: Practically does not occur when using standard firmware. If you are using unofficial firmware, then you need to look for a new one.

Error 10

It may appear when using unofficial firmware. If you encounter such an error, it means that there is no LLB (Low Level Bootloader) in it, which is responsible for booting the system.

Solution: Download new custom firmware.

Error 11

The firmware lacks a number of files needed to download

Solution: Download another custom firmware or rebuild it yourself

Error 13

USB cable or 30-pin problem, or trying to install iOS beta from Windows

Solution: Change cable or USB port. Disable USB 2.0 in BIOS

Error 14

During the flashing, a violation of the integrity of the firmware file was detected

Solution: Disable firewall and antivirus, try changing cable or USB port, try different firmware

Error 17

Trying to upgrade from one custom firmware to another custom firmware

Solution: Before flashing, enter the device into Recovery Mode or DFU Mode

Error 18

Damaged iOS device media library

Solution: With a high degree of probability, a flashing will be required

Error 20

Instead of DFU Mode, the device is in Recovery Mode

Solution: Enter the device into DFU Mode

Error 21

Jailbreak DFU error

Solution: Enter the device in DFU Mode via Pwnage Tool, sn0wbreeze or redsn0w

Error 23

Solution: If the error is repeated on other firmware, then the problem is of a hardware nature

Error 26

NOR is not suitable for this firmware version.

Solution: Just download another firmware file from a trusted source.

Error 27

Cyclic restore error in iTunes version 8 and 9b) Attempting to install iOS from iPhone 3GS on iPhone 3G

Solution: Update iTunes to at least version 10

Errors 27, 29

iTunes gets stuck when trying to restore firmware

Solution: Update iTunes to version 10

Error 28

Most likely the problem is with the iPhone's 30-pin connector.

Solution: This error can only be solved by going to the service center.

Error 39

This error occurs when there are problems with the photo album or with access to the Internet.

Solution: Create a new photo album, also update iTunes to the latest version and disable firewalls and antiviruses on your computer.

Error 47

Hardware problem with the U601_RF chip that stores the IMEI. Additional signs: there is no data in the information "About this device" in the fields "IMEI" and "Modem firmware".

Solution: Take the device to a service center to replace the U601_RF chip.

Error 54

Occurs when it is impossible to copy an application from the phone. Often appears when copying cracked applications or when copying licensed applications to a computer that is authorized in iTunes

  • First, you need to authorize your computer in the iTunes Store. To do this, open the "Store" tab then "Authorize Computer"
  • If it doesn't help, then you need to go to the "Settings" "Synchronization" "Reset sync history" tab, then delete the folder located at C: Documents and Settings / All Users / Application Data / Apple Computer / iTunesSC / Info. After that, authorize the computer again.
  • And one more solution. You need to go to the folder with the media library, then move the "Music" folder to another location. Synchronize your iPhone with iTunes, then return the "Music" folder to its original place and sync again. And the most difficult way. For advanced users only:
  • Open Cydia and load SwapTunes. This tweak allows you to sync your iPhone with multiple media libraries;
  • Launch SwapTunes;
  • Open iFile and go to var / mobile / media /;
  • Find the iTunes_Contrlol2 folder and remove the number 2 from the name;
  • The iTunes Control folder only needs to be deleted after a new folder has been created
  • Now you can uninstall SwapTunes and sync your phone with iTunes.

Sometimes, when restoring, updating and syncing iPhone, iPod Touch and iPad, unknown errors appear in iTunes, and you can't perform the necessary actions with the iOS device. In our guide, you will find the error description and possible solutions.

Errors that occur during the recovery / update and synchronization process can be both software and hardware-related problems in the iPhone, iPod Touch and iPad: some are easy to fix (restarting the computer or changing the USB port), 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.
    Also, notifications may appear:
    • "An error occurred while downloading the software."
    • "The device is not supported for the requested build."

    These errors and warnings appear when there is a problem connecting your computer to an Apple update server or 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 antivirus, Windows firewall, or firewall blocking the connection to Apple servers.
  3. Problems with the USB connection of the device
    ITunes Errors: 13, 14, 1600, 1601, 1602, 1603, 1604, 1611, 1643-1650, 2000, 2001, 2002, 2005, 2006, 2009, 4005, 4013, 4014, 4016, "invalid response", re-request to recover from 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.
    They occur in case of hardware malfunctions with the iPhone, iPad and iPod Touch: with a modem, with a Wi-Fi module, a power connector, a battery, and so on.

Common ways to fix errors in iTunes

You can fix most of the errors in iTunes yourself:

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

The table below describes all known iTunes error codes when restoring, updating, syncing, and downloading content from the iTunes Store, and provides possible solutions.

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 out of date Make sure that you are using the firmware specifically for your device model and
2 The firmware is recognized, but it is not assembled and packaged correctly and therefore cannot be used. Occurs when working with custom firmwares with hacking and unlocking that use bad ASR Patch (The problem is relevant for Sn0wBreeze versions below 1.7) Use a different firmware
3 Problem in the modem part of the device
4 iTunes cannot connect to Apple service servers Third-party software may be blocking ports on your computer 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 of the form "xx.xxx.xx.xxx gs.apple.com". If the line is present, place a # sign in front of it and save the 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 designed for DFU Mode, and you are trying to recover through Recovery Mode) if it doesn't help - create your own firmware or upload another
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 iOS device when working with firmware. Usually occurs when data transfer via a USB cable is interrupted, or when the firmware is incompatible with the selected recovery mode Restore the firmware via DFU Mode. Check the mechanical connection of the device to the computer. Plug the cable into a different port or replace the USB cable
10 Incorrectly assembled custom firmware due to which the low-level LLB loader was damaged or completely missing
11 A number of files required for downloading were not found in the firmware ipsw file Create custom firmware yourself, or upload another custom firmware
13 Problem with USB cable or 30-pin (lightning) connector, or trying to install iOS beta from Windows environment Replace the standard cable or change the USB port. Disable USB 2.0 support in computer BIOS
14 During the flashing process, a violation of the integrity of the ipsw file of the firmware was detected Disable anti-virus software, disable firewall, change USB cable or connect the iOS device to a different port on your computer, download a different firmware
17 Upgrading from one custom firmware to another custom firmware To upgrade to custom firmware, use recovery mode () or firmware update mode (DFU Mode)
18 IOS device media library is damaged In most cases, only a 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 backup while syncing iPhone to iTunes. Uncheck "Automatically sync if iPhone is connected" in the "Overview" tab under "Devices -\u003e Connected Model" in iTunes, remove and connect the iPhone. Then sync again. If the error repeats, you need to restore the device to a new firmware, before that, create a backup in iCloud so that after recovery you do not lose user data.
20 Device is included in Recovery Mode instead of DFU Mode Turn the device into DFU Mode
21 DFU error occurred during jailbreak.
Error 21 occurs due to hardware problems (dead battery, low battery).
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 battery will need to be replaced.
23 Can't read device IMEI or MAC address (at least iTunes can't do that) If the problem persists on other firmware versions, there is most likely a hardware problem
26 Incorrectly assembled custom firmware and, as a result, an error occurred when accessing NOR memory Create custom firmware yourself, or upload another custom firmware
27, sometimes 29 Looping error in iTunes 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 battery, bottom ribbon cable, or power controller Contact an Authorized Service Center to replace the battery, ribbon cable, or power controller
31 The device cannot be taken out of DFU mode. Most often occurs due to hardware problems Contact an Authorized Service Center
34 Insufficient hard disk space to install software Free up space on the drive where iTunes is installed
35 Incorrect iTunes folder permissions on Mac OS X Launch Disk Utility and restore access rights. (in terminal.app, enter the command: sudo chmod -R 700 / Users // Music / iTunes / iTunes Media, where is the username)
37 Low-level bootloader (LLB) in the firmware does not match the device model Create custom firmware yourself, or upload another custom firmware
39, 40, 306, 10054 No access to activation and signing servers Disable Windows firewall and antivirus programs.
54 Software glitch while transferring data from device. In most cases, it occurs on unauthorized computers or when transferring compromised applications Delete "old" backups. Deauthorize your computer in the iTunes Store (Store menu in iTunes) and try again
414 Age limit for downloadable content In yours, change the year of birth (in iTunes, go to Store -\u003e View My Account)
1002 Unknown error while copying firmware files to device Repeat the flashing procedure
1004 Temporary problems on Apple servers (not received from the server SHSH hashes for the device) 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 modem part of iPhone or iPad Try it. If the error persists, contact the service center
1013-1015 ITunes trying to downgrade modem version in iPhone / iPad The flashing was successful, but the iPhone / iPad cannot boot itself to iOS with a downgraded modem firmware. In the TinyUmbrella utility, use the "Kick Device Out of Recovery" feature
1050 Apple activation servers are temporarily unavailable Try to activate your device later
1140 Problem syncing photos from iPhoto on Mac OS X Delete the iPod Photo Cache folder (in the context menu of the iPhoto library file, select Show Package Contents and delete the
1394 Damage to system files in the device as a result of a failed jailbreak Restore the device and repeat the jailbreak procedure
1413-1428 Error while transferring data via USB cable Check the USB connection of the device to the computer, cable integrity and the good condition of the USB port. Change port
1430, 1432 Device not recognized May indicate a hardware problem. Change the USB cable, connect the device to a different USB port, connect the device to another computer
1450 Unable to make changes to iTunes library file On Mac OS X, restore permissions, on 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 performed from Recovery Mode Enter the device into Recovery Mode and try again
1601 iTunes cannot access full device access Disable all background processes, change USB port or USB cable, reinstall iTunes
1602 iTunes could not detect the device while preparing to update Check the hosts file for entries like "xx.xxx.xx.xxx gs.apple.com", if any, comment them out (insert the "#" 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: jailbreak using Spirit and on the JailbreakMe website is not complete and also leads to similar errors.
1608 ITunes components damaged Reinstall iTunes
1609 The version of iTunes to work with your device is outdated Update iTunes to the latest version
1619 iTunes cannot with the device in DFU mode, in normal mode it successfully recognizes it Update iTunes to the latest version
1644 Third-party programs are accessing the firmware file Close all programs running in the background, disable firewall and antivirus, restart your computer
1646 iTunes could not recognize the device in active mode Reboot iOS device, restart iTunes
2001 Mac OS X driver problem 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 operation problem Connect your device to a different USB port or a different computer
2005 Damaged USB cable Replace cable
3000, 3004, 3999 No access to the firmware signing server Access is blocked by a third party application, disable firewall and antivirus
3001, 5103, -42210 iTunes cannot download videos due to hashing errors Update iTunes, locate and delete the "SC Info" system folder ( Windows 7: ~ \\ Documents and Settings \\ All Users \\ Application Data \\ Apple Computer \\ iTunes; Mac OS X: ~ / users / Shared / SC Info)
3002, Unable to request a suitable SHSH hash from the firmware signing server. The error occurs if iTunes redirects to the Cydia server is configured in the hosts file manually or using TinyUmbrella, but the server does not have any hashes saved for this firmware Close TinyUmbrella and remove (comment out) from the hosts file the line like "xx.xxx.xx.xxx gs.apple.com"
3014 Apple activation server not receiving response for too long Restart your computer, force refresh your internet connection.
If the error occurs already during the recovery process (the status bar fills up on the device screen under the logo), download and install Hotspot Shield. Run the program and try to restore again.
3123 iTunes can't rent videos Deauthorize your computer in iTunes and log in again
3191 QuickTime components damaged Reinstall QuickTime and its components
3195 SHSH digital certificate corrupted Try restoring device via iTunes
3200 Required images are missing in custom firmware Create custom firmware yourself, or upload another custom firmware
4000 Conflict with other connected USB devices Try unplugging all USB cables from your computer except keyboard, mouse, and iOS device
4005, 4013 Critical update / restore error Try to restore the device in DFU mode, preferably using a different USB cable
4014 The device was disconnected from iTunes during a restore or update. iTunes can't put iOS device into recovery mode Perform recovery / update on a different computer and / or with a different USB cable.
5002 ITunes Store Error: Unable to Make Payment Check your credit card information
8003, 8008, -50, -5000, -42023 Unable to recover file download from App Store or iTunes Store Clear the contents of the "iTunes Media / Downloads" ( Windows 7: ~ \\ Users \\ Username \\ Music \\ iTunes \\ iTunes Media \\ Downloads)
8248 iTunes plugins incompatible with the new version break the program Remove installed iTunes plugins. Often the problem is related to the Memonitor.exe process, terminate it
9006 Trouble uploading firmware to iTunes Disable firewall and antivirus, download iOS manually
9807 ITunes is not communicating with the digital signature verification server Disable firewall and antivirus
9813 Damaged or invalid Keychain certificates on Mac OS X Clear Safari cache (menu "Safari -\u003e Reset Safari")
11222 Waiting limit for connection to iTunes services exceeded Disable firewall and antivirus, update iTunes, re-login with your Apple ID in the iTunes Store
13001 Irreversible damage to the system file of the iTunes library Reinstall iTunes or delete the iTunes Library and .itdb files in the iTunes folder
13014, 13136 The system is loaded with processes that prevent 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 the Windows graphical shell On Windows, enable the default skin
20008 ITunes conflict with TinyUmbrella Update TinyUmbrella to the latest version and restart your computer
-1 Critical modem error Occurs when updating iPhone without upgrading the modem firmware. Use or to get the 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 Unable to download music from iTunes Store Update iTunes to the latest version, re-login with your Apple ID to the iTunes Store, disable firewall and antivirus
-50 ITunes no connection with Apple servers Update iTunes to the latest version, re-sign in with your Apple ID in the iTunes Store, disable firewall and antivirus, reinstall iTunes and QuickTime
-3198 The integrity of the downloaded files is violated Retry downloading content via iTunes
-3221 Invalid permissions on iTunes program file on Mac OS X Run Disk Utility and restore permissions
-3259 ITunes Store Connection Timeout 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 Downloads from iTunes Store blocked by security In iTunes, sign out of your account, restart iTunes and sign in to the iTunes Store again with your Apple ID
0xE8000001, 0xE800006B The device was disconnected unexpectedly Disconnect the device from the computer, restart iTunes and reconnect the device
0xE8000013 Error syncing iOS device with iTunes Re-sync
0xE8000022 IOS system files damaged (irreversibly) Recover your device
0xE800003D Incorrect access rights to the settings files of the cellular operators (Carrier Bundles) If the iOS device is jailbroken, correct the access rights to the settings files of the mobile operators (on iPhone / iPod Touch / iPad: / System / Library / Carrier Bundles), delete all custom Carrier Bundles of the operators, restore the device
0xE8000065 An error occurred while flashing the device to a custom build of iOS. As a rule, this error occurs when working with firmware collected in sn0wbreeze Restart your computer, try again, if unsuccessful, create the firmware again
0xE8008001 An attempt to install an unsigned (cracked) application. Occurs when installing applications on a jailbroken device Install AppSync from Cydia for your iOS version
0xE8000004 (iPhone 4) The error occurs most often when activating the iPhone 4. It is solved with the help of a tied downgrade to the GeekGrade_IPSW firmware, followed by loading from Boot_IPSW into redsn0w.
The whole procedure is described in