homerclone69
Level 1 (0 points)

Q: there was a problem downloading the software for the iphone. an unknown error occurred (-23)

Hi

When i connect phone to itunes and try to update to ios 9 my phone all i keep getting is "there was a problem downloading the software for the iphone. an unknown error occurred (-23)"

Things i have tried

itunes on pc tower (windows 10)

itunes on laptop (alienware windows 10)

itunes on laptop (toshiba windows 7)

get the same message on all the above

I have tried uninstalling itunes on all computers and reinstalling have also de-authorized and reauthorized computers.

Have tried turning phone off and on.

have tried holding power button and home button

But i still keep getting this problem (there was a problem downloading the software for the iphone. an unknown error occurred (-23)

Its driving me insane

Its an iphone 5

 

Please help me

iPhone 5, iOS 8.4.1

Posted on Sep 20, 2015 7:50 AM

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homerclone69

Q: there was a problem downloading the software for the iphone. an unknown error occurred (-23)

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  • Helpful answers

  • by Jason L,

    Jason L Jason L Sep 21, 2015 7:58 AM in response to homerclone69
    Community Specialists
    Sep 21, 2015 7:58 AM in response to homerclone69

    Hello homerclone69,

    Welcome to Apple Support Communities.

     

    It sounds like you have tried to upgrade iOS on your iPhone 5 with multiple PCs, but you're unable to because of an issue that is causing alert messages to appear in iTunes. The article linked below provides a lot of great information that should help you resolve the issue upgrading iOS on your device using iTunes.

    Get help with iOS update and restore errors - Apple Support

    Solve network errors

    Errors: 17, 1638, 3014, 3194, 3000, 3002, 3004, 3013, 3014, 3015, 3194, 3200. You might also see these alert messages:

    • "There was a problem downloading the software."
    • "The device isn't eligible for the requested build."

    These alerts mean that your computer is either having difficulty contacting the Apple update server or communicating with your device.

    Check your computer for software or settings that might cause communication issues between your computer and Apple or between your computer and your device.

    If you still see the error message, check your security software.

     

    Check for 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, or 1669.

    Your device or computer might have a hardware issue that stops the update or restore from completing.

    1. Check that your security software and settings aren't blocking your device from communicating with the Apple update server.
    2. Then try to restore your iOS device two more times while connected with a cable, computer, and network you know are good.
    3. Make sure that your security software and settings are allowing communication between your device and update servers.
    4. If you still see the error message when you update or restore, contact Apple support.

    If you still see the error message, check for outdated or modified software.

     

    Ciao.