1 Reply Latest reply: Nov 19, 2012 12:40 PM by whatheck
maherboi Level 1 Level 1 (0 points)

i had no sound on my iphone at all now iv tryed to restore it back to factory settings and it comes up with unknown error occurred (6) and it has lock my phone it to recovery mode can u help

iPhone 4S, iOS 6.0.1
  • whatheck Level 5 Level 5 (4,080 points)

    This Apple doc should help ya out -> iTunes: Specific update-and-restore error messages and advanced troubleshooting

    Errors related to third-party security software

    Error 2, 4 (or -4), 6, 1000, 9006            

    1. Follow Troubleshooting security software. Often, uninstalling third-party security software will resolve these errors.
    2. There may be third-party software that modifies your default packet size in Windows by inserting a TcpWindowSize entry into your registry. Your default packet size being set incorrectly can cause these errors. Contact the manufacturer of the software that installed the packet size modification for assistance or follow this article by Microsoft: How to reset Internet Protocol (TCP/IP).
    3. Verify that access to ports 80 and 443 are allowed on your network.
    4. Verify that communication to albert.apple.com or photos.apple.com is not blocked by a firewall, or other Internet security setting.
    5. Discard the .ipsw file, open iTunes and attempt to download the update again. See the steps under Advanced Steps > Rename, move, or delete the iOS software file (.ipsw) below for file locations.
    6. Restore your device while connected to a different network.
    7. Restore using a different computer.


    If you don't want to go through those steps, you can always try restoring the iPhone from another computer.