HT4946: iTunes: About iOS backupsLearn about iTunes: About iOS backups
Currently Being ModeratedNov 25, 2012 8:04 PM (in response to myoaunglwin)
iPad: Basic troubleshooting
Update and restore alert messages on iPhone, iPad, and iPod touch
iOS: Resolving update and restore alert messages
iPad: Unable to update or restore
Error 1004, 1013, 1638, 3014, 3194: These errors may be the result of the connection to gs.apple.com being redirected or blocked. Follow these steps to resolve these errors:
1. Install the latest version of iTunes.
2. Check security software. Ensure that communication to gs.apple.com is allowed. Follow this article for assistance with security software. iTunes for Windows: Troubleshooting security software issues.
3. Check the hosts file. The restore will fail if there is an active entry to redirect gs.apple.com. Follow iTunes: Advanced iTunes Store troubleshooting to edit the hosts file or revert to a default hosts file. See section "Blocked by configuration: (Mac OS X/Windows) > Rebuild network information".
4. Try to restore from another known-good computer and network.
5. If the errors persist on another computer, the device may need service.
- Update to the latest version of iTunes. Mac OS X 10.5.8 (Leopard) users may need to download iTunes 10.6.3.
- Third-party security software or router security settings can also cause this issue. To resolve this, follow Troubleshooting security software issues.
- Downgrading to a previous version of iOS is not supported. If you have installed software to perform unauthorized modifications to your iOS device, that software may have redirected connections to the update server (gs.apple.com) within the Hosts file. Uninstall the unauthorized modification software from the computer.
- Edit out the "gs.apple.com" redirect from your hosts file, and then restart the computer for the host file changes to take affect. For steps to edit the Hosts file and allow iTunes to communicate with the update server, see iTunes: Troubleshooting iTunes Store on your computer, iPhone, iPad, or iPod—follow steps under the heading Blocked by configuration (Mac OS X / Windows) > Rebuild network information > The hosts file may also be blocking the iTunes Store. If you do not uninstall the unauthorized modification software prior to editing the hosts file, that software may automatically modify the hosts file again on restart.
- Avoid using an older or modified .ipsw file. Try moving the current .ipsw file (see Advanced Steps > Rename, move, or delete the iOS software file (.ipsw) below for file locations), or try restoring in a new user to ensure that iTunes downloads a new .ipsw.
Message was edited by: Texas Mac Man
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