1 The firmware does not fit the device, or the iTunes version is too old to work with this version. Update iTunes to the latest version, if the error persists, download the firmware again
2 Firmware is recognized, but cannot be used due to the fact that it is assembled and packaged incorrectly (usually an error occurs when working with custom firmware) Download the firmware or try another
5, 6 Firmware cannot be installed either because of damage to the boot logos, or because the device was entered into the wrong service mode (for example, the firmware is for DFU Mode, and you are trying to recover through the Recovery Mode) Enter the device in the DFU Mode, if it doesn't help, download another firmware
8 Firmware for iTunes version, but not for device (for example, it is not for that device generation) Download firmware version corresponding to your device model
9 Panic kernel in the device when working with the firmware. Occurs either when the data transfer by cable is interrupted, or if the firmware is incompatible with the selected recovery mode. Try to restore the firmware via the DFU Mode. Check whether the cable is securely fixed in the USB port and in the 30-pin connector of the device. Change the cable or port.
10 Damaged or missing low-level loader LLB due to crookedly assembled custom firmware. Download another custom firmware or rebuild it yourself.
11 The firmware lacks a number of files needed for downloading. Download another custom firmware or rebuild it yourself.
13 USB cable or 30-pin connector problem or attempt to install iOS beta from Windows. Change the cable or USB port. Disable USB 2.0 BIOS
14 During the flashing, a violation of the integrity of the firmware file was detected Disable the firewall and antivirus, try changing the cable or USB port, try another firmware
17 Attempting to upgrade from one custom firmware to another custom firmware. Before flashing, enter the device in Recovery Mode or DFU Mode.
18 The media library of the iOS device is damaged. It is likely that a flashing will be required.
20 Instead of DFU Mode, the device is in Recovery Mode. Enter the device in DFU Mode.
21 DFU-mode jailbreak error Enter device into DFU Mode via Pwnage Tool, sn0wbreeze or redsn0w
23 iTunes cannot read the IMEI or MAC address of the device hardware. If on other firmware the error repeats, then the problem is of a hardware nature.
26 Error when working with NOR memory due to crookedly assembled firmware. Download another custom firmware or rebuild it yourself.
27, 29 iTunes loops when trying to restore firmware Update iTunes to version 10
28 Failure of flash memory or contact group. You can only be helped in the service.
31 The device cannot exit the DFU mode. Most often, an error means hardware problems.
34 Not enough disk space. Free up the hard disk on which iTunes is installed.
35 Corrupted access rights to the iTunes folder on the Mac. Run the Disk Utility and restore the access rights.
37 Low-level bootloader does not match the device model due to an error when building custom firmware Download another custom firmware or rebuild it yourself
39, 40, 306, 10054 Problem with access to activation and signing servers Disable firewall and antivirus
54 Cannot transfer iTunes Store purchases from the device Delete old backups. Deauthorize computer in iTunes (menu "Store") and try again.
414 You do not have the right to upload content with a rating of 17+ to your device. Correct the age data in your iTunes account (menu "Store - View my account")
1002 An error occurred while copying the firmware files to the device. Start the flashing procedure again.
1004 Apple servers could not send SHSH-hashes to the device Try to flash later
1008 Your Apple ID contains invalid (in iTunes) characters. Try not to use anything other than Latin letters and numbers in your Apple ID.
1011, 1012 The iPhone / iPad modem does not respond Try rebooting the device. If the error repeats continuously, then there may be a hardware problem.
1013-1015 iTunes tried to lower the iPhone / iPad version of the modem. The error indicates that the firmware was completed normally, however, the iPhone / iPad itself cannot boot after it. You must use the function Kick Device Out of Recovery in the utility TinyUmbrella
1050 Apple activation servers are unavailable. Try activating your device later.
1394 System files corrupted due to unsuccessful jailbreak. Restore firmware and jailbreak again.
1413-1428 Problems with data transmission via USB-cable. Check the integrity of the cable and the health of the USB port.
1430, 1432 Device not recognized Change cable, USB port, computer. May indicate a hardware problem.
1450 Unable to modify iTunes library file Restore access rights on Mac OS X, check ownership and folder permissions in Windows
1600, 1611 Recovery to custom firmware goes through DFU Mode, although it should have been done through Recovery Mode Enter the device in Recovery Mode
1601 iTunes cannot get full access to the device Disconnect all background processes, try another USB port or cable, reinstall iTunes
1602 iTunes cannot make sure that the device is entered into the desired mode. Check the hosts file, disable all background processes, try another USB port or cable.
1603, 1604 The non-jailbreak device is restored to the custom firmware. Jailbreak on the current firmware. Please note: jailbreak through the Spirit utility and the JailbreakMe site is not complete and also leads to such errors
1608 iTunes components are damaged iTunes needs to be reinstalled
1609 iTunes version is too old to work with the device. Update iTunes to the latest version.
1619 iTunes sees the device in normal mode, but cannot work with it in DFU mode. Update iTunes to the latest version.
1644 Other system processes prevent iTunes from working with the firmware file. Restart the computer, turn off the firewall and antivirus, close all programs running in the background.
1646 iTunes could not download the device in the desired mode Restart the iOS device, restart iTunes
2001 Mac OS X drivers block access to the device. Update Mac OS X to the latest version.
2002 iTunes access to the device is blocking other system processes. Close all other programs, turn off the antivirus, restart the computer.
2003 USB port is damaged. Clean USB port, check contacts, try connecting device to another port or computer.
2005 Damaged cable Replace cable
3000, 3004, 3999 Unable to access the firmware signing server Disable firewall and antivirus
3001, 5103, -42210 iTunes cannot download video Find and delete the service folder "SC Info" from the disk
3002, 3194 Cannot request a suitable SHSH hash from the firmware signing server. It occurs if you redirected iTunes to the Cydia server via the hosts file or the TinyUmbrella utility, but there are no saved hashes for this firmware on the server. Disable TinyUmbrella or delete the line "220.127.116.11 gs.apple.com" from the hosts file.
3123 iTunes cannot rent a video. Deauthenticate a computer in iTunes and log in again.
3191 QuickTime components are damaged. Reinstallation of the player and QuickTime components is required.
3195 Accepted SHSH hash is damaged Try to start flashing again
3200 There are no required images in the custom firmware Download another custom firmware or create it yourself again
5002 Unable to confirm payment in iTunes Store. Verify that your credit card information is correct.
8008, -50, -5000, -42023 iTunes cannot restore the file download session Clear the contents of the iTunes Media / Downloads folder in the iTunes folder
8248 iTunes doesnвЂ™t work properly with old incompatible plugins Remove plug-ins installed to iTunes until the error stops appearing
9807 iTunes cannot contact the digital signature verification server Disable firewall and antivirus
9813 Invalid keychain certificates Clear Safari cache (menu "Safari-Reset Safari")
11222. Access to iTunes services is blocked. Disable the firewall.
13001 Irreversible damage to your iTunes library file Delete the iTunes Library and itdb files in the iTunes folder
13014, 13136 Other processes interfere with the normal operation of iTunes Restart the computer, disable the firewall and antivirus, close all programs running in the background
13019 Library error when trying to sync. Check iTunes library for corrupted and incompatible files.
20,000 iTunes Conflicts with Windows GUI Enable Standard Theme in Windows
20008 iTunes Conflicts with TinyUmbrella Utility Update TinyUmbrella Utility and Reboot
-1 Critical modem error Occurs when updating iOS on an iPhone without a modem upgrade. Use redsn0w or TinyUmbrella to wipe the gadget from recovery mode
-35, -39 Unable to download music from the iTunes Store Update iTunes to the latest version, log out and log in again, disable the firewall and antivirus
-50 iTunes cannot connect to servers Update iTunes to the latest version, log out and sign in again, disable the firewall and antivirus. In extreme cases, reinstall iTunes and QuickTime.
-3198 The integrity of the downloaded files is broken. Repeat the download through iTunes again.
-3221 Incorrect access permissions for iTunes file on Mac Run Disk Utility and restore access rights
-3259 iTunes Store Timeout Limit Exceeded Check Internet Connection
-9800, -9808, -9812, -9814, -9815 Purchase time error on the iTunes Store Set a correct date on your computer
-9843 iTunes Store security system blocked download Log out from your account, restart iTunes and log in again
0xE8000001, 0xE800006B The device was unexpectedly disabled Restart iTunes and reconnect the device
0xE8000022 iOS system files are irreversibly damaged Recover firmware
0xE800003D iPhone or iPad cannot access the settings files of mobile operators. Correct access rights (if the gadget is jailbroken), delete all custom operator bundles, as a last resort, restore the firmware
0xE8000065 Error when trying to install custom firmware As a rule, an error occurs when working with firmware created in sn0wbreeze. Restart the computer, try to flash again, in case of failure, create the firmware again
0xE8008001 Attempt to install an unsigned application into the device. Do not install pirated software.
Reason for editing: Normal. I will edit later.