IPhone could not be updated. An unknoen error occurred

Hi,
Just bought a 2nd hand iPhone4 but can't upgrade to iOS6.
Phone details are;
     Version: 5.1.1 (9B208)
     Model: MC605X
     Modem Firmware: 04.12.01
iTunes 10.6.3.25 on Windows 7 returns the following error when trying to update;
     - iPhone could not be updated. An unknown error occurred (3194)
Any help would be appreciated.
Cheers
--Maurice--

See this Discussion...
https://discussions.apple.com/message/19482036#19482036
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HT201210 iPhone could not be updated An unknown error occurred (3004)

iPhone could not be updated An unknown error occurred (3004)
plz help me how to fix it

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if itunes can no longer pickup your ipod, and you cant even do anything to your ipod, your best option is to either call apple care, or just take it to the nearest apple shop. i had a similar problem, mines currently at apple care repairs and they might just end up giving me a replacement.

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HT201210 i keep getting this message when trying to update my old 3g-"the iphone could not be restored-an unknown error occurred (-1)-any ideas? anyone?

i keep getting this message when trying to update my old 3g-"the iphone could not be restored-an unknown error occurred (-1)-any ideas? anyone?

i have done that
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the phone has a sim in it that is not active. does this cause the fault in question?

HT4623 Software update for iOS 6.1Error -The iPhone "iPhone" could not be restored. an unknown error occurred (-1).

I got Software update for iOS 6.1 ..
After installation - Phone shows message to connect to iTune,
I connect to iTune - I got message - iTune has detected iPhone in recovery mode. you must restore this iPhone before it can be used with iTune.
I click on Restore iPhone - it gives error
The iPhone "iPhone" could not be restored. an unknown error occurred (-1).
Not my phone is not working - Its dead - is show the screen - Connect to iTune.
Please help.
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Error 1 or -1
This may indicate a hardware issue with your device.
Follow Troubleshooting security software issues, and restore your device on a different known-good computer.
If the errors persist on another computer, the device may need service.

HT201210 iphone 3g ..while updating 4.2 ver showing this message...the iphone "iphone" could not be restored.An unknown error occurred(2003).

the iphone "iphone" could not be restored.An unknown error occurred(2003).

i have done that
same result
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"the iphone could not be restored an unknown error occurred (2)"

Yesterday I connected my iPhone 4 to my Windows 7 laptop, and went through to install the latest security update for iPhone through iTunes. When it was installing the software update, the phone froaze, and then this happened:"the iphone could not be restored an unknown error occurred (2)"
Now, I have uninstalled and reinstalled both Bonjour and iTunes, to no avail. I have done the iPhone reboot method, and the phone will be identified as "iPhone" but not recognised as mine. iTunes states this phone is in recovery mode and I have tried numerous times to restore it.
Windows doesn't detect the phone while this is happening. It will not restore and the error is still popping up. I have followed as many threads to rectify this but nothing seems to be working.
I can resore it on my iMac but the reset date for the iPhone on this computer is six months old.
Any suggestions?

When you say you uninstalled iTunes and reinstalled it, did you follow the directions in this Apple support document exactly? http://support.apple.com/kb/HT1923
That will make a difference on Windows computers. After that, try and reconnect and restore.

HT1414 iphone could not be restored an unknown error occurred 23

pleas help me repair my ip with erro iphone could not be restored an unknown error occurred 23

Try disabling any anti-virus software or firewalls and restore again. Copied from http://support.apple.com/kb/TS3694:
Error 20, 21, 23, 26, 28, 29, 34, 37
These errors typically occur when security software interferes with the restore and update process. FollowTroubleshooting security software issues to resolve this issue. In rare cases, these errors may be a hardware issue. If the errors persist on another computer, the device may need service.

HT1766 iphone could not be restored an unknown error occurred(4013)

iphone could not be restored an unknown error occurred(4013)

Hello there, alfyzeyjapple77.
The following Knowledge Base article provides some pertinent steps for troubleshooting your issue:
iTunes: Specific update-and-restore error messages and advanced troubleshooting
http://support.apple.com/kb/TS3694#error4000
Particularly:
Error 4000, 4005, 4013, 4014, and 4016
After you perform each step, try to restore your device.
Restart your computer.
Disconnect all your USB devices from your computer and connect to another USB port.
Use a different USB cable.
Uninstall third-party security software.
Try restoring using an alternate computer.
Thanks for reaching out to Apple Support Communities.
Cheers,
Pedro.

The iphone could not be restored an unknown error occurred (21)

Hi,
Suddenly my iphone got switched off, so i tried to restore it - but now im getting the iphone could not be restored an unknown error occurred (21)
i think once i got OS update this issue is occuring
kindly give a solution for this issue
Thanks in Advance
Regards
Babou gv

Read
Error 20, 21, 23, 26, 28, 29, 34, 36, 37, 40
These errors typically occur when security software interferes with the restore and update process. FollowTroubleshooting security software issues to resolve this issue. In rare cases, these errors may be a hardware issue. If the errors persist on another computer, the device may need service.
Also, check your hosts file to verify that it's not blocking iTunes from communicating with the update server. See iTunes: Advanced iTunes Store troubleshooting—follow steps under the heading Blocked by configuration (Mac OS X / Windows) > Rebuild network information > Mac OS X > The hosts file may also be blocking the iTunes Store. If you have software used to perform unauthorized modifications to the iOS device, uninstall this software prior to editing the hosts file to prevent that software from automatically modifying the hosts file again on restart.

The iphone could not be restored an unknown error occurred 1013 ATTt iPhone

AT&T iPhone 4
Last night when I plugged my phone in to iTunes, it told me I needed to update my phone. So I tried to do it. Then it said I need to restore it. So I pressed the "restore button". After several minutes, I get a pop-up error box stating "the iphone "iPhone" could not be restored an unknown error occurred 1013". I've read other discussions with the same issue, but none of the solutions work.
Please help.

Exact same thing happened to me. I took it to a local Apple Store and they told me the port was corroded and so they replaced the phone. I took the phone back home, plugged it into itunes, told it to restore my old contacts, and BOOM same error. Iphone could not be restored an unknown error occurred 1013.
Seeing as how the nearest Apple Store is a two hour round trip from here, I'm very upset. What is up with this last update?

The iphone could not be restored an unknown error occurred 1013

AT&T iPhone 4
Last night when I plugged my phone in to iTunes, it told me I needed to update my phone. So I tried to do it. Then it said I need to restore it. So I pressed the "restore button". After several minutes, I get a pop-up error box stating "the iphone "iPhone" could not be restored an unknown error occurred 1013". I've read other discussions with the same issue, but none of the solutions work.
Please help.

This worked for me:
http://thefirmwareumbrella.blogspot.com/2011/03/fixrecovery-updated-43-supported .html#idc-container

Im getting a prompt like..the iphone "iphone" could not be restored, an unknown error occured (21)

I am getting a prompt after the Restoration cycle like " the iphone could not be restored. an unknown error occured (21) and (1611)

iPad: Basic troubleshooting
http://support.apple.com/kb/TS3274
Update and restore alert messages on iPhone, iPad, and iPod touch
http://www.buybuyla.com/tech/view/012953a0d412000e.shtml
iOS: Resolving update and restore alert messages
http://support.apple.com/kb/TS1275
iPad: Unable to update or restore
http://support.apple.com/kb/ht4097
iTunes: Specific update-and-restore error messages and advanced troubleshooting
http://support.apple.com/kb/TS3694
If you can’t update or restore your iOS device
http://support.apple.com/kb/ht1808
 Cheers, Tom
Check for hardware issues
Related errors: 1, 3, 10, 11, 12, 13, 14, 16, 20, 21, 23, 26, 27, 28, 29, 34, 35, 36, 37, 40, 1000, 1002, 1004, 1011, 1012, 1014, 1667, or 1669.
Try to restore your iOS device two more times while connected with a cable, computer, and network you know are good. Also, confirm your security software and settings are allowing communication between your device and update servers. If you still see the error message when you update or restore, contact Apple support.
Message was edited by: Texas Mac Man

HT201210 the iphone could not be restored. an unknown error occurred (2)

the iphone could not be restored. an unknown error occurred (2)

From the article the question was posted from:
Errors related to third-party security software
Error 2, 4 (or -4), 6, 1000, 9006
Follow the steps to troubleshoot security software. Often, uninstalling third-party security software will resolve these errors.
There may be third-party software that modifies your default packet size in Windows by inserting a TcpWindowSize entry into your registry. An incorrectly set default packet size 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).
Verify that access to ports 80 and 443 are allowed on your network.
Verify that communication to albert.apple.com or phobos.apple.com isn't blocked by a firewall or other Internet security setting.
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.
Restore your device while connected to a different network.
Restore using a different computer.

HT201210 the iphone iphone could not be restored. an unknown error occurred (1015).

the iphone iphone could not be restored. an unknown error occurred (1015).

1015 error: There are 4 possible causes of this error:
The activation server truly is unavailable. Rare, usually fixed within minutes.
Your antivirus or firewall or router's firewall is blocking access to
gs.apple.com on ports 80 and 443.
Your iPhone is jailbroken or otherwise hacked.
The computer you connected to during the restore/update was
used to hack/jailbreak some other iOS device, and its
network database was corrupted during the process.
(Thanks to Lawrence Finch for the wording in
https://discussions,apple.com/thread/4793244?start=90 )

IPhone could not be updated. An unknoen error occurred

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