Comments on: iPhone 3.0 Upgrade Fail: “Unknown Error”

By: Mirco Canal

Mirco Canal — Sun, 04 Jul 2010 21:29:51 +0000

I’ve tried all the ideas that you all have posted, and nothing seems to gives life to my iphone, pls help me. I have all of my work on this …….

By: Cromaru

Cromaru — Sat, 26 Jun 2010 15:55:13 +0000

Dudes i figured it out. When u start restoring, ur phone gets a blank screen right and it fails, now just shut it down, turn it on and try again, but dont unplug it, keep it plugged, worked for me

By: Martin

Martin — Sun, 06 Jun 2010 21:16:31 +0000

TO: Got-It !!! June 18, 2009 at 8:24 pm
Thank you!!! I was starting to get desperate, but just a simple exchange of a cable helped! I could never imagine this could be a solution, but you saved me! Thanx!

By: kevon

kevon — Fri, 04 Jun 2010 17:44:34 +0000

Error 2000-2009: If you experience this issue on a Mac, disconnect third-party devices, hubs, spare cables, reset the SMC, and then try to restore. Learn how to reset the SMC. If you are using a Windows computer, remove all USB devices and spare cables other than your keyboard, mouse, and the device, restart the computer, and try to restore. If that does not resolve, try the USB issue-resolution steps and articles listed for Error 1604 above. If the issue continues, it may be related to conflicting security software.

By: kevon

kevon — Fri, 04 Jun 2010 17:42:39 +0000

Error 1604: This error is often related to USB timing. Try changing USB ports, uninstalling and reinstalling USB ports, and other available USB troubleshooting steps (troubleshooting USB connections, device not recognized properly, computer won’t recognize a FireWire or USB device). If you are using a dock, bypass it and connect directly to the USB 30-pin dock-connector cable. If the issue persists on a known-good computer, the device may need service.

If the issue is not resolved by USB isolation troubleshooting, and another computer is not available, try these steps to resolve the issue:

Connect the device to iTunes, confirm that the device is in Recovery Mode. If it’s not in Recovery Mode, put it into Recovery Mode.
Restore and wait for error 1604.
When prompted, click OK.
Close and re-open iTunes while iPhone remains connected.
iPhone should now be recognized in Recovery Mode again.
Try to restore again.
If the steps above do not resolve the issue, try restoring using a known-good USB cable, computer, and network connection.

By: ashlee

ashlee — Tue, 04 May 2010 11:30:33 +0000

i have error 2002 help.

My phone is completly wiped. GRR

SHIT I HATE APPLE

By: Lisa

Lisa — Sun, 17 Jan 2010 10:28:23 +0000

Got the same message today I just kept going to itunes and ran the software again and my phone was restored.

By: derek gibb

derek gibb — Fri, 30 Oct 2009 13:45:39 +0000

Stephen Mcmaster! What a man! I have sent my phone to o2, had them replace a part because apparently it was a “hardware error”. Came back still not working!

Just followed your instructions and now working perfectly.

Cheers mate

By: Erick

Erick — Mon, 12 Oct 2009 03:30:54 +0000

Thank you! Thank you! Thank you! 3 hours wasted on code 1640 until I found this. half hour and it is restored synced and running again.

By: Jeepboy

Jeepboy — Wed, 30 Sep 2009 02:02:01 +0000

I plugged my iPhone into my computer trying to upgrade to 3.1 and after iTunes opened there were some “gleek gleek” and”doink” noises that seemed to cease after I plugged into another USB port. But sometime during the upgrade the phone froze, so I tried to do a restore, but got an error message that said “no can do”. From there the phone had a picture on the screen of the USB plugging into iTunes, and
that was all. Someone in an earlier post said they got a new USB cable and that solved the problem. So I got one too. A big beefy MF from Belkin. Plugged in the new cable, the phone connected to iTunes, did what it was supposed to do, installed 3.1, restored my photos, contacts, etc., and I’m good to go. Worth a try.