Codes of all iTunes errors when updating and restoring iOS and how to fix them

No perfection in the world — so even great «apple» technique may also work incorrectly under certain circumstances.

Our guide to the most common errors in iTunes, that happen in the process of updating or restoring iOS on iPhone, iPad or iPod Touch — at your service!

Network errors

Errors: 17, 1638, 3014, 3194, 3000, 3002, 3004, 3013, 3014, 3015, 3194, 3200

The following notifications may appear on the screen:

«Error loading software».

«Device not supported for requested assembly».

What is the reason: problems with connecting a PC or Mac to the update server or the device itself.

What to do

  • Check the hosts file. Windows instructions here, Mac instruction — here.
  • Temporarily disable or remove anti-virus software.

Conflict with antivirus

Errors: 2, 4, 6, 9, 1611, 9006.

Which means: Anti-virus software prevents iTunes from connecting to an update server or iPhone / iPad / iPod.

What to do

Check your antivirus and other software settings, safety. Make sure, that they do not interfere with the work of iTunes. The easiest way to do it — temporarily shut down and remove the software (some will have to be removed additionally through registry cleaning programs like CCleaner).

Problems with computer USB, cable, Lightning-plug on the device

Errors: 13, 14, 1600, 1601, 1602, 1603, 1604, 1611, 1643-1650, 2000, 2001, 2002, 2005, 2006, 2009, 4005, 4013, 4014.

Screen message: «invalid answer».

What to do

Make sure, That you have no problems with connecting via USB (try other USB ports and another cable).


Remove all rechargeable batteries and covers from third-party manufacturers, Using a proprietary Apple cable, connect to your PC via another USB port (but do NOT connect through ports, eg, on the keyboard or monitor), try to connect to another computer.

Connect iPhone or iPad to PC via USB, then unplug the cable from the computer, reconnect it. Does not help? Disconnect the cable from the iOS device and then reconnect the smartphone or tablet again.

Turn off virtualization software (for example, Parallels or VMware), if they are installed.

Finally, sometimes a simple reboot helps — like a computer, and iOS devices, as well as disconnecting from the PC all peripherals (printers and t.P. Mouse and keyboard do not need to disconnect).

maybe, worth checking out, Is the latest version of iTunes installed on your computer?, and if necessary update it.

If on the iPhone or iPad screen you see the sign Connect to iTunes, device must be restarted and restored.

Hardware issues

Errors: 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, 1669.

What to do

  • Cm. Tips on security software verification;
  • 2 times restore iPhone or iPad — with the condition, what are you doing it from on 100% good cable, PC and Internet access;
  • contact the service center.

Software issues on device

Mistake: 1015.

Screen message: «Cannot find required resource».

Which means: Software is outdated or changed.

The reasons: «ancient» iTunes version / Beta-version of new iOS firmware installed on iPhone or iPad / attempt to install an earlier version of iOS (eg, iOS 8 to iOS 9 device) / unauthorized modification found (hacking firmware).

What to do

Use iTunes recovery mode and current IPSW firmware file (can be downloaded here).