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You are here: Home / iPad / How to fix iPhone / iPad backup, update & restore errors in iTunes

How to fix iPhone / iPad backup, update & restore errors in iTunes

By SK 45 comments Last updated December 30, 2022

Several iOS users have reported that they are unable to update, backup or restore their devices when they use iTunes. If you see an error code when using iTunes to update or restore your iPad or iPhone, there are a few things you can try to identify and fix your problem.

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  • Restore iPhone from iCloud
  • Backup iPhone to an External Drive with iTunes
  • iPhone DFU Restore and Recovery Mode

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Contents

  • 1. Make sure that you have the latest version of iTunes
  • 2. Make sure that your computer’s OS is up to date
  • 3. Restart your computer and your iDevice
  • 4. Make Sure your iPad/iPhone is running the latest iOS software
  • How to fix iPhone / iPad backup: when your issue persists
  • Reader Tips

1. Make sure that you have the latest version of iTunes

If not, download and install the latest version of iTunes. You can check for iTunes updates:

  • Windows: Choose Help > Check for Updates.
  • Mac: Choose iTunes > Check for Updates.

2. Make sure that your computer’s OS is up to date

  • New Macs: Mac App Store > Updates
  • Older Macs: Apple Menu > Software Update and install available updates
  • Windows: Start Button > type Update in the search box, and then, click Windows Update

 

3. Restart your computer and your iDevice

To restart your iPhone or iPad, press and hold the sleep/wake button until you see the red slider. Slide the red slider to turn your device off. Then press and hold the sleep/wake button until you see the Apple logo.

4. Make Sure your iPad/iPhone is running the latest iOS software

Check for updates by going to Settings > General > Software Update.

How-To Restore from an iCloud backup

How to fix iPhone / iPad backup: when your issue persists

Getting error code: “This device isn’t eligible for the requested build” or “There was a problem downloading the software” Errors 1004, 1013, 1638, 3014, 3194, or 3000-3999

This message and error mean there are communications issues between your computer and iDevice. If you have a Windows computer, please see this article. If you have a Mac computer, see this article.

Error codes 2, 4, 6, 9, 1000, 1611, 9006, 9807, or 9844

What this means is that some security software and settings are preventing iTunes connecting to the Apple servers.  See this article to resolve this problem.

Error codes 13, 14, 1600-1629, 1643-1650, 2000-2009, 4000, 4005, 4013, 4014, 4016,  or “invalid response” “an unknown error occurred”

What this means is that there is a problem with your USB connection and the USB communication to your iOS device isn’t working. To resolve this issue, (a) use a different USB cable, (b) use another USB port on your computer (c) unplug any extra USB cables such as printer etc. Keep only the essentials; keyboard, mouse and your iPad or iPhone.

Reader Tips

  • Reader Raymond figured out a method that worked for him for error 4500. He opened his device and removed battery then placed back and started up with DFU restore. For Raymond, this time restore went well and completed! Back in working condition
sudz - apple
SK

Obsessed with tech since the early arrival of A/UX on Apple, Sudz (SK) is responsible for the original editorial direction of AppleToolBox. He is based out of Los Angeles, CA.

Sudz specializes in covering all things macOS, having reviewed dozens of OS X and macOS developments over the years.

In a former life, Sudz worked helping Fortune 100 companies with their technology and business transformation aspirations.

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Reader Interactions

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Show 45 Comments

  1. Seamore B. says

    June 7, 2022 at 1:49 PM

    Error code 4016 Fix.
    Put an iPhone or iPad in DFU mode, Open iTunes, plug device, hold down the Volume down button, hit the restore and upgrade, keep holding down the volume down button until you see the firmware/software being transferred over to device (apple logo with loading bar)

    Reply
  2. sanejoy says

    June 4, 2021 at 12:09 AM

    I know there is another tool. I used the TunesKit to fix iTunes error. Maybe, you can try.

    Reply
  3. cattails321 says

    July 25, 2017 at 6:54 AM

    in 5-4-3-2-1…….weeeeeeeeee update installed in General>w/e>”Updated” does not exist…slapped my iphone a few times and found “UPDATES” somehow and BAM> update is downloaded..I have no idea how I found it and did it but I did,Your info(plus 3 cups of coffee just got my brain kick started,,,,,,THANK YOU….I’m going back to bed know….

    Reply
  4. Raymondhib says

    April 7, 2017 at 9:34 AM

    screen got blank > tried restore > faced 4500 error
    resolution: opened > removed battery > placed back > did DFU restore > this time restore went well and completed!
    Phone was back in working condition…. with no data.

    hope this helps someone
    thanks

    Reply
    • SK says

      April 7, 2017 at 12:06 PM

      Hi Raymond,

      Thank you for sharing this great tip!!! We’ll add it in and hope it helps others too. Good job figuring out a solution that works for you (and hopefully others.)

      Cheers,

      SK

      Reply
  5. Uday says

    December 7, 2016 at 8:49 AM

    what is the solution for error code 16 in iPhone 4?really frustrated..
    many thanks.

    Reply
  6. Leon says

    May 4, 2016 at 6:51 AM

    Can anyone help with an Uknown error (5), please?

    Reply
  7. Robert Francis says

    May 3, 2016 at 12:06 PM

    iPad has been performing poorly for months now : slow, regularly freezes, won’t send emails , then aol stopped altogether .

    Reply
  8. Sofia says

    March 5, 2016 at 10:40 PM

    Please help my iPad is completely switched off and I did everything but my screen is grey.i try to restore it from iTunes but it doesn’t find the device.its iPad Air not 3G and no imei how can I fix it please help

    Reply
  9. Issam says

    February 14, 2016 at 8:18 AM

    I have an iPhone 6 (Jailbroken) 8.1.2 and I tried to reset my device to take the jailbreak off and I turned it off intentionally, now it’s bricked and couldn’t be restored, everytime I restore it it says error 9006, I also took it to the apple store, same thing, what do I do? Please help ASAP.

    Reply
  10. Ivan says

    January 19, 2016 at 6:45 AM

    my Iphone fail restore “unknow error 52”
    trying 3 computers are same
    need help !!

    Reply
    • SK says

      January 19, 2016 at 7:53 AM

      Ivan, Take a look at this link. It appears that you may have had some driver changes on your machine due to new s/w.
      https://support.apple.com/en-is/HT204095#code52. Good luck.

      Reply
  11. Jay says

    January 15, 2016 at 5:32 PM

    Try turning off passcode (Settings->Passcode) before trying Restore. That solved 1671 issue for me.

    Reply
  12. Ronie says

    January 2, 2016 at 5:23 AM

    Need help here .. My iPhone 5 has error occurred 9 and they told me its hardware problem…Can Anyone help me that has idea and remedy for this??

    Reply
  13. Lillian says

    November 5, 2015 at 11:38 PM

    Also have the same problem keeps telling me error 1671 i have done everything need HELP!!

    Reply
  14. D says

    October 22, 2015 at 7:38 PM

    I had error 29 and researched it was battery related, changed battery, now i have error 1671. It will not budge from trying to completely restore. i also have a mac.

    Any ideas? i am failing to research any answers… does that mean this phone is dead?

    Reply
    • Ronie says

      January 2, 2016 at 5:33 AM

      Is this problem resolved? Because i have the same problem with yours but mine is iPhone 5 ..

      Reply
  15. oupa dion malatji says

    October 6, 2015 at 7:59 AM

    I have tried it many times but I cant get it.

    Reply
  16. tariq says

    August 13, 2015 at 9:45 PM

    sir plz help me if know any one to solve this issue
    my iphone 4s is stuck on itune logo ,while restore my phone error 9 occure agiuan an again and i m too much worried about this problem.plz give me accurate ans

    Reply
  17. Hannah M says

    July 19, 2015 at 7:58 PM

    I’m also getting error 1671 and i have tried everything i can think of to fix it. help would be appreciated.

    Reply
    • Dakahl says

      September 18, 2015 at 9:31 PM

      I have same problem – did you manage to resolve this and how ?

      Reply
      • hassan says

        September 27, 2015 at 1:51 AM

        No answer for error 1671 in iOS !!
        its crazy !

        Reply
  18. Meave says

    July 18, 2015 at 6:26 AM

    Mine also gave the error code 1671. I’ve tried turning off my antivirus as I read on another thread that this worked for someone but it’s still not working.
    Would love some help.
    Thanks

    Reply
    • Traci in Texas says

      September 3, 2015 at 9:13 AM

      It is a corrupt Host file in your C:windowssystem32driversetc folder. Move that file to your desktop and try again. Put that file BACK when you are done…

      Reply
      • rennaton says

        September 11, 2015 at 11:51 AM

        This isn’t working for me…any other ideas?

        Reply
  19. Cassie says

    July 14, 2015 at 11:35 AM

    I constantly getting the unknown error 52 when I’m trying to restore my iPhone 5 with iOS 8.4
    Cannot find any information regarding error 52

    Who can help?

    Reply
    • Nige says

      September 17, 2015 at 12:12 PM

      I believe error 52 is due to duplicate music check you music and see that no music tracks are exactly the same and delete any that are and this should clear

      Reply
    • Ivan says

      January 19, 2016 at 6:46 AM

      Same problem please anyone help

      Reply
  20. anil says

    July 9, 2015 at 1:24 AM

    i want to restor and updata my iphone but its give me this error (1671)

    Reply
    • Traci in Texas says

      September 3, 2015 at 9:13 AM

      It is a corrupt Host file in your C:windowssystem32driversetc folder. Move that file to your desktop and try again. Put that file BACK when you are done…

      Reply
      • conmac says

        September 17, 2015 at 10:34 PM

        I have a Mac and the same error. How can I fix it? where do I find files to remove?

        Thanks!

        Reply
      • von says

        January 19, 2016 at 11:28 AM

        thank u . worked perfectly.
        but after activation process, says hello. asks which country. i choose United States. then asks for wifi network. it’s all good. then it says .
        this apple id is linked to s******@gmail.com
        what do i do now?

        Reply
  21. blake says

    June 27, 2015 at 9:38 AM

    I have los my restrictions passcode, now I’m trying to reinstall ios 8.3 on iphone 4s but after unpacking software itunes says “unknown error (4000)”

    Reply
  22. Marko says

    June 21, 2015 at 5:50 AM

    How about unknown error occurred 5?

    Reply
  23. muthana says

    April 6, 2015 at 1:37 AM

    i want to restor and updata my iphone but its give me this error (1671)

    Reply
    • Traci in Texas says

      September 3, 2015 at 9:12 AM

      It is a corrupt Host file in your C:windowssystem32driversetc folder. Move that file to your desktop and try again. Put that file BACK when you are done…

      Reply
      • Eva says

        October 22, 2015 at 7:33 AM

        Eh, I got this 1671 error as well but on my mac.

        Reply
        • David Harrold says

          December 24, 2015 at 8:24 AM

          /Developer/usr/etc/distcc

          Reply
  24. Ronen says

    March 23, 2015 at 12:17 PM

    after restarting my Ipad 2 i was instructed to connect the iped to the Itune (via the cable to the macbook) which i did in order to IOS 8.2. i got unknown error message number 1671.

    i will appreciate your help

    thanks

    Reply
    • Dakahl says

      September 18, 2015 at 9:29 PM

      I have exactly the same problem once I attempted an IOS9 update – how did you resolve this ?

      Reply
      • jimy says

        September 22, 2015 at 10:16 AM

        the same thing for me! i need help pronto

        Reply
    • Cody says

      October 6, 2015 at 8:58 PM

      I as well. Have lots of pics of loved ones since passed. Hope Apple can get this corrected (as currently they are lost)! Apple was once a great machine and I went all in many years ago. I hope this wasn’t a regretfull decision, for myself and my family. As I said IOS was a great machine.

      Reply
  25. Md fazirul says

    February 14, 2015 at 8:08 PM

    Hi im from brunei, asia country.. I have problem here my iphone6plus encounter problem “unknown error 56”.. Until now i cant open iphone..only redtune logo pop out..please help me on this..

    Reply
  26. Luân says

    December 7, 2014 at 7:58 PM

    I restore the iphone 5s error 4005? need help

    Reply
  27. Rick says

    April 28, 2014 at 12:06 PM

    My iPhone became completely bricked up when I tried to update through iTunes. It stuck me at the restore/update screen, and every time I clicked “Restore” in itunes, it crashed with error 14.

    After a couple of hours of beating my head against a wall, I finally realized that my antivirus software was preventing the update. When I put an exclusion for iTunes into my antivirus, it sailed through without any more problems.

    Reply

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