"I am trying to update my iPhone to iOS 10 but get the error 9 " The iPhone "iPhone" could not be restored, an unknown error occurred (9)". Does anyone know where go from here?"
- Apple Community
iTunes error 9 is a possible security software issue that usually comes up when you are trying to upgrade/restore your firmware on iPhone, iPad, or iPod. This could be firewall blocking access to specific websites/web resources (like iTunes trying to download something from Apple's servers). Below are 5 common factors that would cause iPhone error 9.
iTunes Error 9 is less common in contrast to Error 4014 or iTunes Error 3194 with which the users are more acquainted with. If you unfortunately meet this unknown error, follow 5 ways below to have a fix.
iTunes error 9 may appear if there is an accident disconnection between the device and computer during the data transfer process. So follow steps below to check your USB connection in following ways:
When you try to upgrade your iPhone/iPad, iTunes connects to Apple, checks for hashes, security keys etc. If sometime during the attempt, iTunes is stopped from connecting to Apple's servers, it throws an error like iTunes error 9.
Make sure all virtualization apps like Parallels or VMWare are closed as these apps might interrupt the computer's ability to communicate via USB, especially if they are not configured properly, or outdated.
Check if the latest version of iTunes is installed on the Mac or other computer. If not, update iTunes to the latest version.
iTunes error related to software issue like software crash can be resolved by this method. Press and hold the Sleep/wake button and the Home button at the same time. Keep holding the buttons at least 10 seconds and release the buttons when the Apple logo appears. After that, try to charge your iPhone again.
TunesCare is the world's first iTunes repair software. It can fix iTunes sync problems and iTunes errors on iPhone 7/7 Plus/SE/6s/6s Plus/6/6 Plus/5s/5c/5/4s/4/3gs by one click.
All you need to do is install this freeware to your PC, and connect an iOS device to computer with USB cable.
And then click Fix iTunes Sync Problems to fix the iTunes library automatically
This one click solution can fix most iTunes issues, whereas, if you still receive the error 9, I recommend you to try "Fix All iTunes Issues", which is an advanced mode to fix complicated iTunes issues thoroughly.
We list 5 methods to fix iTunes error 9 which occurs during restoring/updating an iOS device, among which TunesCare is the best recommended and easiest way to repair iTunes issues.
Some iPhone users reported that their iPhone is stuck on Apple logo/recovery mode and cannot restore in iTunes.
"I have an iPhone that's stuck on the Apple logo. I tried restoring it in DFU, recovery mode, and cooked-up custom firmware, all with the same result. The screen just keeps turning on and off on the Apple logo, and can't seem to get past it. The phone just keeps throwing iTunes error 9."
If you received the iTunes error (9) and cannot restore or update your device, I recommend you to use iCareFone, a professional system care tool that provides an easy way to fix all iOS stuck problems, to help you get your iPhone out of stuck.
So we have listed 5 common ways for you to fix iTunes error 9. If you have any other questions, leave a message at the comment place.