HT201954: Unauthorized modification of iOS can cause security vulnerabilities, instability, shortened battery life, and other issues

Learn about Unauthorized modification of iOS can cause security vulnerabilities, instability, shortened battery life, and other issues
pulati
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Q: updgrading ios, unknown error oocured (3004)

updgrading ios, unknown error oocured (3004)

iPhone 4S, iOS 6.1.3

Posted on Oct 15, 2013 12:12 AM

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pulati

Q: updgrading ios, unknown error oocured (3004)

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  • by jason269,

    jason269 jason269 Oct 17, 2013 12:37 PM in response to pulati
    Community Specialists
    Oct 17, 2013 12:37 PM in response to pulati

    Hi, pulati. 

     

    Thank you for visiting Apple Support Communities. 

     

    Here are the steps on how to resolve update error 3004. 

     

    Errors 3000-3999 (3004, 3013, 3018, 3164, 3194, and so on): Error codes in the 3000 range generally mean that iTunes can't contact the update server (gs.apple.com) on ports 80 or 443.

    1. Update to the latest version of iTunes.
    2. Verify the computer's date and time are accurate.
    3. Check that your security or firewall software isn't interfering with ports 80 or 443 or with the server gs.apple.com.
    4. Follow these steps to troubleshoot security software. Often, uninstalling third-party security software will resolve these errors.
    5. An entry in your hosts file may be redirecting requests to gs.apple.com (go to "Unable to contact the iOS software update server gs.apple.com" above).
    6. Internet proxy settings can cause this issue. If you're using a proxy, try again without using a proxy.
    7. Test restoring while connected to a known-good network.

     

    iTunes: Specific update-and-restore error messages and advanced troubleshooting

    http://support.apple.com/kb/TS3694

     

    This could be related to the host file being modified.  Go to the section labeled Blocked by configuration: (Mac OS X/Windows) > Windows or Mac > The hosts file may also be blocking the iTunes Store.

     

    iTunes: Advanced iTunes Store troubleshooting

    http://support.apple.com/kb/TS3297

     

    Cheers,

     

    Jason H.