iPhone 4: Error 9 on Restore

I had the error 9 restore issues yesterday too. The linked post addresses one possible solution. It's worked for quite a few people so far.

http://discussions.apple.com/thread.jspa?threadID=2508016&tstart=0

I tried everything, but unfortunately without success.
I tried two PC, I uninstalled iTunes and reinstalled, receiver mode, dfu mode, deleted all the backup and everything still there but again not good news - always error 9.

Certainly we have to change the iPhone 4!
See:
http://discussions.apple.com/thread.jspa?messageID=11719104

What do you mean?

We are having the same problem with our iPhone 4. We got it yesterday and it was having trouble syncing. We rebuilt our iTunes library and it still wouldn't sync completly. We thought because we restored a backup from the iPhone 3G that may be the issue, so we decided to do a restore. It failed with the Error (9) message, and now it is stuck in recovery mode, and will not restore from iTunes on Windows 7 or Mac OS X.

Had exactly the same problem with my iphone 4,
I got a mac so i went to:
~/Library/Application Support/MobileSync/Backup/

then I deleted the last backup folder, tried again to restore
it worked.

Hope this helps !
Nath.

I have the same problem I cant not restore and the the same error code (9)

I tried everything you did also , but unfortunately without success

Usb cable swap,and tired on the 3 different pcs and a macbook pro

I ran into this issue this weekend. I attempted to restore my phone as some of my data from my iPhone 3G did not properly sync to my iPhone 4. 15 or so restores later still no love. I took my phone to the Apple Store and they could not fix the problem. They said it was a hardware problem and gave me a new phone. I dare not try to restore my new phone since it caused me to brick my first phone for 2 days.

I have had the same issue and still can't get my iphone 4 restored. It started after a apple tech support told me I had to restore my iphone as a new phone vs my restoring it with my previous 3G. I had to do this due to a no sim card error I kept getting. When I did try the restore to fix the sim card error issue now my iphone will not restore and I get the dreaded error 9 after about 20 attempts and 3 hours later still no luck. I have an appointment with apple tomorrow and I will post what they say. I just put a 30 dollar invisible shield on it also grrrrrrr I'm frustrated!!!

Anyone with this issue is hosed - been on with support for an hour. No option but to swap the phone at a Store or send it in for repair. Appears to be an issue with the firmware update process.

You have to be kidding me.

Tried to update to 4.0.1 today unsuccessfully, received error code 9 and repeated 9's after trying to restore several times. Reboots and USB related swaps didn't help. Finally tried deactivating my AVG Free antivirus resident shield manager, and the restore worked successfully after a reboot. Never had to mess with my antivirus settings before in any other iphone update the past 3 years, but that seemed to make it work.

Same deal here. Got my iPhone 4 today in the mail, registered it, it worked fine, updated it, then it stopped working with a consistent error (9) reading when attempting to restore it. I was told it needed to be replaced after trying all the mentioned fixes on this and other forums. Some people write they got theirs to work. Cool. For those trying to figure out if they can make it work or not and to add one thing to this forum: consulting your update log (for PC- (user)/appdata/roaming/apple computer/itunes/iphone updater logs) is another step that will help you determine the extent of the issue. Search for any error readings near the bottom and supply the error lines of code to your apple tech. Hopefully this will make your down time on the phone or in store a little quicker if you need to pursue it that far. What a drag, huh?

Message was edited by: tromboneman

Error 9: This error occurs when the device unexpectedly drops off of the USB bus and communication stops. This can occur if the device is manually disconnected during the restore process. This issue can be resolved by performing USB isolation troubleshooting, using a different USB dock connector cable, trying another USB port, restoring on another computer, or by eliminating conflicts from third-party security software.

Picked up new iPhone 4 today and within hours was going round in circles with the dreaded Error 9 on restore problem.

Downloaded RecBoot from http://www.sebby.net/659-released-recboot-1-0-2/ and sorted the phone within seconds.

Why could Apple not have something like this with so many people complaining of the problem!

SAmme error 9 here.

Got the phone a week ago and instead of restoring from old 3G backup i did a fresh setup. Everything went fine until i tried to sync my apps and music.

Itunes kept crashing. I eventually got everything updated and all seemed fine until I decided to listen to my music a few days later. The album art was either meessed up or non existant and song where skipping like crazy.

So I decided that something may have happened during the few times iTunes crashed and decided a restore would be a good idea ... start fresh. BIG MISTAKE ...

I tried all solutions here and quite frankly am tired of juming through hoops to fix a brand new $200 phone. I'm heading to Apple store to get a replacement and nothing more .. and that replacement better be BRAND NEW out of the box ... no second hand refurbs.

ATTENTION THOSE WITH ZAGG INVISHIELDS

If the Apple store is going to replace a iPhone (or any device with a Zagg on it) REMOVE it from the phone and place safely and flat on a piece of paper.

Once you get home goto the ZAGG site and register your shield (something you should have already done really) and setup the FREE (costs .01¢ actually) replacement. They offer a Lifetime Warranty.

I had this happen to me before and had absolutely no issues with getting a replacement from Zagg. I just explained the situation and the RMA was st up. Pretty easy really. I did it through e-amil as I contacted them about it first.

Good Luck.

I received this exact same error trying to install the 4.0.1 update on my iPhone 4. I read through several things and even tried RecBoot but couldn't get it to work. I finally saw something about antivirus so I turned off AVG. Still got error. I then uninstalled AVG and rebooted my PC and the restore worked finally! I am using Windows XP but it does appear Antivirus software is doing something to the firmware update of your phone. I'm no expert but it worked for me.

I went to Apple and they somehow revived my iPhone 4. The tech claimed it was in a "deep sleep". Mine was so far in a deep recovery I couls no longer turn it on. It was as if it was completly dead.

So I got it home and continued to have syncing issues.

I completly re-downloaded all my apps. Still had sync and crashing issues.

I read about AV software may be causing some issues so I had to uninastall my AV software (AVG does not have a temp disable option which is pretty stupid not to have) and I was still having crashing issues.

I re-did my entire music collection. Everything from scratch. I have a new model Nano plugged in that syncs just fine ... so it has to be either iOS 4 or the iPhone4 causing issues.

Really stinks and as typical Apple they are not addressing this issue. Hopefully there will be a iTunes update soon.

I did plug my iPhone into the same USB port that my iPod Nano was plugged into and it synced over 700 songs with no issues. So maybe it was my USB port I was using.