Sometimes we will run into different errors in iTunes when jailbreak, restore, update or downgrade an iPhone or iPad, and error 9 is one of the commonly encountered iTunes errors. By definition, error 9 is a hardware issue involving USB connectivity to iTunes. Using a damaged USB port or USB cable can cause trigger iTunes to prompt you with the error 9
Though it is a tough task to fix an error if it is both hardware and system related, we do have some suggestions for you to try before you trash or replace your iPhone.
Step 1. Heat iPhone/iPad with a hair dryer
Yes, it is. Please use a hair dryer to heat the phone. Make sure you won’t damage your device.
Step 2. Plug the earbuds into the jack.
Step 3. Run Tenorshare ReiBoot and connect your bricked iPhone 8/7/SE/6s/6/5 to computer via USB cable. Follow the steps on Tenorshare ReiBoot to put your iPhone into DFU mode.
Step 4. Once you’ve entered DFU successfully, the software will detect your iPhone and list the firmware for downloading. Click Download button to download the matching firmware online.
Step 5. When the firmware package is downloaded to computer, go ahead to repair the system. Once the process completes, your iPhone boots up and all is fine. Moreover, all data are kept in your phone.
Note: If iTunes pop up any error message during system recovery process, please ignore it or quit iTunes and continue completing system recovery.
Hope these suggestions are helpful to fix iTunes error 9. More iTunes errors solutions here.