ANY ONE KNOW WHAT IS ERROR 3 IN ITUNES WHEN I TRY TO RESTORE IPHONE 5 TO IOS 7 IT STUCKS IN THE END AND AFTER 30 MIN THIS COME OUT "UNKNOWN ERROR 3" CAN SOME ONE HELP ME PLZ

SOMEBODY CAN FIX IT??? I have the same problem. Cant restore and try uninstalling and reinstalling itunes and still have the trouble. I mean I SEE MANY GUYS HERE with the exactly same problem.... NO ONE CAN SOLVE IT??? WE NEED HELP !!! My iphone is dead !!!

GUYS I FINALLY FIX IT. Using my old macbook with the newest version of itunes and waiting a lot, but now my iphone is ALIVE ! I have another trouble now. Itunes say: "were sorry we are unable to continue with your activation at this time". Buy I hope this is easiest to fix.

I just tried to update my iPad 3 from 7.0.3 to 7.0.4 and it failed and I am getting the same "error (3)" which I can find nothing about. Multiple attempts at doing a restore failed. All updates are on my MBA and I rebooted and I tried two differenct 30 pin cables plugged directly into my MBA. Nothing worked on multiple attempts. Under extended warrenty so I'm making a Genius appointment and giving it to them to resolve or replace. Not updating anything else in my household to 7.0.4, although I did my iPhone 5 first to 7.0.4 with no issues.

UPDATE: I went to Apple Genius bar this evening. They also tried a DFU Restore and still got "Error (3)". They also claimed to have no idea what "Error (3)" was and that they knew less than we do as developers about that kind of stuff.

So, I put my 25 years of Semiconductor experience to work. I suspect that Error code (3) is likely a "write verify error" from the storage Flash that is generated during the install process. This would happen if a "bit" of the Flash "got stuck" as a "1" or a "0" either because of a "slow write" or a "slow erase". This is common in Flash technology. The "fix" is to "make the chips cold" as "cold" semiconductors will both "write" and "erase" easier than "warm" Flash semiconductors.

To verify, I put my iPad 3 in the freezer (should use a freezer bag to prevent moisture, but I didn't) for 30 minutes. After 30 minutes I removed from the freezer, plugged in my 30 pin cable immediately and started a regular Restore. IT WORKED! I then restored all my apps from the prior day's backup. A few did not restore sucessfully, so I had to manually delete and reinstall. All went fine and my iPad is running iOS 7.0.4.

I love physics! The problem could repeat itself in the future, but then again it may not. If this works for you, and I suspect it will, you can repeat the "freeze" process again. It won't work for years, but it will extend your iPhone/iPad life for a while.

Good luck all!

I hope your right about this Kennetyoung. I have been without my iphone 5 for almost a month since I got my error (3) after trying to update to 7.0.2. Good thing I had my old Iphone 4 still laying around or i'd be phoneless. I tried every thing I have read on this site with no luck so hopefully this is the magic solution. Ive tried updating itunes (mac). Ive tried different USB ports, Ive tried using a different computer and all its different USB ports. The only thing I wasnt able to try was using a different cord since i only have the 1 Lightning cable it came with. Keeping my fingers crossed...

Let me know how it works out.

You may get an different error message during the "update", I did, which basically just stated that there may be something wrong with your iPad/iPhone and to contact Apple, but you should see the "Hello" in all languages screen on your iPad/iPhone when the process is finished. Be patient. It may take up to an hour to complete, depending on your device. I went an watched TV and when I came back, I saw "Hello" cycling on my iPad after I touched the Home button.

Use the Control Panel to uninstall iTunes and related software components in the following order and then restart your computer:

1. iTunes
2. Apple Software Update
3. Apple Mobile Device Support
4. Bonjour
5. Apple Application Support (iTunes 9 or later)

I would acutally put the device in recovery mode and then restore that way as well. verify that you disabled the security software on the computer, makes a big difference.

After uninstalling itunes and its related components I would restart the computer and then reinstall iTunes.

To put the phone in recovery mode you completely shut the device off by holding the sleep/wake button on the device. once the device is completely shut off, put your finger on the home button and at the same time connect the device to the computer and leave your finger on the home button until a message/icon appears to connect the phone to iTunes. Then perform the restore

I followed the instructions step by step , unfortunately it didnt work. Any other suggestions ?

Attempt restore on a different computer

If the "Restore on another computer" doesn't work (it didn't for me or the Apple Genius), or is not an option, go back to page 2 of this discussion and read how I used my "freezer" to solve the "Error (3)" problem on my iPad 3, and try it. Right now you have a "brick" so there really is no downside to my "freezer" fix that worked for me. I would recommend a freezer bag with a paper towel wrapped around 1/2 cup dry rice to minimize any condensation, placed inside the freezer bag (I didn't do this and just had some condensation on the outside, but I do recommend others use a freezer bag). The rice wrapped in the paper towel absorbs much of the moisture.

Kenneth, I tried everything listed including different computers and different versions of iTunes but no luck. I was out of options and had nothing to lose so I decided to deep freeze my ipad at your advice. I will admit that I was going to call BS on your solution because it was just so off the wall but I figured I had nothing to lose at that point. I wrapped it in paper towels, put it in a zip lock bag, and placed it in the freezer for 40 minutes.

40 minutes later, I took it out of the freezer and started the restore process. After just 10 minutes the restore actually completed successfully. I was and still am in complete awe that it actually worked. It has been on now for 24 hours with no problems.

Thanks for the suggestion. It worked for me when I had no other options.

Well Unfortunatly I tried the freezer technique and its didnt work for me. I put my iphone in a freezer bag. I didnt wrap it up or put it in rice. So maybe ill try to do it that way. When I took it out my phone had a little layer of ice on the screen so hopefully it wasnt water damaged in the first process.

Exactly why its a very bad suggestion for people do that lol

Glad it worked. You are #3 that has reported success, which all but verify's that it is most likely an issue with the section of the Flash storage that is reserved for the operating system. I've written to Apple to see if they will acknowledge this as the issue and put in place a program to replace the iOS devices that get "bricked" to to "Error (3)", but I have heard nothing back yet. I'll report on this forum if I get any response.

Did you try starting the Restore process immediately after taking it out of the freezer, or skip that due to the ice? So far I've had 3 people report success using this technique after getting "Error (3)" and you are the only "fail" to date. If you retry and it doesn't work, please let me know if you still got "Error (3)" or a different message (and what it was) so I can keep records and continue to chase this issue with Apple. Customers should not have to pay to fix an Apple device that gets "bricked" due to an Apple iOS update, regardless of the devices warranty status (IMHO).