Thank you for providing the details of the issue you are experieincing when trying to restore your iPhone. I recommend reviewing the following article for the issue you described:
Thank you for using Apple Support Communities.
Thank you for the additional information. Due to the nature of your issue or question you may find more information by using another one of Apple's support resources - https://expresslane.apple.com/GetproductgroupList.action.on
All the best,