Manually editing the Windows registry to remove invalid Error 2 keys is not recommended unless you are a PC service professional. Mistakes made when editing the registry can render your PC inoperable and cause irreparable damage to your operating system. In fact, even one comma placed in the wrong place can prevent your computer from booting!
Because of this risk, we highly recommend using a trusted registry cleaner such as WinThruster [Download] (developed by Microsoft Gold Certified Partner) to scan and repair any Error 2-related issues. Using Registry Cleaner [Download] can automate the process of finding corrupted registry entries, missing file references (such as those causing the %%error_name% error), and broken links within the registry. Before each scan, a backup copy is automatically created, allowing you to undo any changes with one click and protecting you from possible damage to your computer. The best part is that fixing registry errors [Download] can dramatically improve system speed and performance.
Warning: Unless you are an experienced PC user, we DO NOT recommend manually editing the Windows Registry. Using Registry Editor incorrectly may cause serious problems that may require you to reinstall Windows. We do not guarantee that problems resulting from incorrect use of Registry Editor can be corrected. You use Registry Editor at your own risk.
Before you manually repair the Windows registry, you need to create a backup by exporting the part of the registry associated with Error 2 (for example, iTunes):
The following steps for manually editing the registry will not be described in this article, as they are likely to damage your system. If you would like more information about editing the registry manually, please check out the links below.
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.
These errors and warnings appear when you have problems connecting your computer to the Apple update server or to your device.
You can fix most errors in iTunes yourself:
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.
| 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 | Launch Disk Utility and perform permission repair. (in terminal.app enter the command: sudo chmod -R 700 /Users//Music/iTunes/iTunes Media, where is the username) |
| 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, turn off 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 |
iTunes is a stable and reliable program, and therefore many users who encounter this utility’s error for the first time are quite surprised. Unfortunately, no program is immune to failure, but fortunately, in the case of iTunes, in most cases there is a way to quickly fix this or that problem, unless, of course, it is some unknown error. The fact is that Apple engineers classified all kinds of bugs that iTunes can “please” with, assigned them numbers and provided guides for eliminating them.
In this article we will tell you why error 54 appears in iTunes and how to get rid of it.
Error 54 appears when certain problems arise with synchronizing iTunes and an iOS device, and in the vast majority of cases it is software rather than hardware in nature. So calm down, most likely nothing is broken, and you can get rid of the error yourself - just follow our guides and everything will work out. However, before you start with our recommendations, make sure that you are not trying to synchronize a very large amount of information at once - try exchanging files in parts, and perhaps the errors will go away.
So, error 54 interrupted your work with iTunes; this happened (with a probability of 99.9%) while trying to synchronize certain content using the utility between a PC and an iOS device. An error window appears in front of you: “Cannot sync iPhone [ device name]. An unknown error occurred (-54)." The first and simplest measure to eliminate it, which is recommended, including on the Apple support page, is to click “OK” in the pop-up window - quite often this action helps synchronization to continue smoothly.
If this “trick” doesn’t work, follow the next, also very simple, instruction: restart iTunes and reboot the iOS device, and then perform another synchronization attempt.
Is the error still preventing you from syncing files? Let's move on.
If this is not your first time working with iTunes, then you know that in order to transfer content from a PC to an iOS device, you first need to execute the “Add file to library...” command. Using this very library, the program organizes your files in a special iTunes Media folder and, let’s say, gets permission to work with them. But sometimes library files, due to software glitches and/or incorrect user actions, are stored in multiple locations, which often leads to error 54. To combine files in iTunes Media:
Important point! If you are trying to transfer purchases from the iTunes Store to an iOS device through the program, and error 54 bothers you, perhaps your best bet is to try downloading them directly from the device itself - to do this, open the “iTunes Store” application on your iPhone/iPad/iPod. Tap the “More” section, then “Shopping” and click on the “cloud” icon.
Is error 54 still there? Then we try to deauthorize - or, more simply put, log out of our iTunes account:
Now log into your account again and check if the error has disappeared:
Deauthorization didn't help? Let's move on. You've probably used iTunes to back up information stored on your iOS device more than once. Every time you create one, iTunes does not update the old copy, but creates a new one; over time, they accumulate, which can cause errors of one kind or another. Therefore, it is advisable to get rid of them from time to time, and if you encounter error 54, then this is not only desirable, but necessary:
If all the above measures did not help you resolve the error, then most likely the problem is due to software conflicts. As a rule, conflicts of this kind arise if some program was not updated in time and/or security programs identified iTunes as a suspicious utility. Let's figure out in order what to do in both cases.
First of all, we will update everything that is outdated.
If the updates do not help, we take the last “desperate” step - disable the antivirus and/or firewall. Do not worry! We will not force you to work without security programs; the main thing for us now is to check whether they are the problem or not. If, when you disable security utilities, the error disappears, then most likely iTunes somehow got into suspicious programs and you need to transfer it to trusted ones. Sometimes this measure does not help, then we recommend updating your security programs. If the update does not help, you will need to remove them completely and install them again.
Well, as a last resort, if the error appears after reinstallation, we advise you to simply disable your antivirus and/or firewall at the time of synchronization.
Well, this is where the methods for eliminating error 54 come to an end. We hope you managed to “defeat” her. Otherwise, we recommend contacting Apple Support. If they don’t find the right solution there, then probably the cause of the error is hardware in nature - perhaps the iOS device is to blame, perhaps the PC. One way or another, in this situation you will have to contact a service center, unless, of course, you are 100% sure that you can handle the repair yourself. By the way, to check who is to blame - the PC or the iOS device, try synchronizing with another computer - if the error is there, the Apple is to blame, otherwise - the PC.
iPhones are capable of simultaneously performing a huge number of tasks, thanks to which they become not just means of communication, but reliable assistants at work and at leisure. They allow you to listen to music, view and edit photos, play games and make new friends. By and large, these devices can replace bulky desktop computers.
However, like any gadget, it can present its owner with an unpleasant surprise in the form of error 29 when restoring an iPhone 4S. Such a failure can slow down the operation of the device for a long time and bring a lot of inconvenience to the user. What to do if a regular device reboot does not solve the problem? How to quickly and effectively correct the situation?
In addition to the fact that a corresponding message appears on the phone screen, when the device restarts, the following may also occur:
This problem occurs not only on the phone itself, but also on the PC through which the update is carried out.
If such failures occur constantly, then you should find out what could affect the operation of the system. Most often the problem occurs for the following reasons:
In addition, unknown error 29 iPhone 4S may indicate that the user installed additional software that could mistakenly delete some of the iTunes files.
In any case, as with most errors on iPhones, you can go in two ways: reboot the device or restore the settings to factory settings.
A simple hard reset will not affect files stored on the phone, so this procedure is considered the most gentle. In order to do this, you must do the following:
After this, the phone may take longer to boot than usual. Don't be alarmed, as this is a completely normal situation.
If the device did not respond to the manipulations in any way, and error 29 still appears when updating the iPhone 4S, then you will have to move on to more stringent measures and perform a “rough” reboot.
Before performing this procedure, it is very important to create a backup and save all important data from your phone. The easiest way to do this is to use the cloud. Once all the photos and documents have been saved in a safe place, you can begin. In order to restore factory settings and “reset” the system, you need to do the following:
After this, you need to check the functionality of the phone. If all is well, you can restore your backup files and continue enjoying your iPhone.
You should definitely take note of the warning that any low-quality iPhone 4S firmware can lead to very serious consequences. All updates must be made automatically or by downloading the necessary files from the official Apple website. It is worth understanding that any failures may require expensive system diagnostics, so it is better not to experiment.
