I will be the person helping you today.
I can help you in one of two ways:1) We will communicate back and forth on this page.2) Remote support, which would allow me to take a look at the problem and fix it for you while you watch.
In my experiences, remote support saves a lot of time for everybody and is safer because if instructions are not followed correctly, it may make the problem worse or create a new problem.
As a side note, both options are covered by a 100% guarantee and fully refundable, if we are not able to fix your problem.
If you wish to choose the first option, please let me know so we can begin. If you wish to choose the second, better option, then click the Accept this Offer button for Secure Remote Assistance.
Thank you for the update. May I ask which specific problems you are experiencing with the iPhone?
When you attempt to restore the firmware with iTunes, what exactly happens? Also, have you tried restoring it on a different computer?
May I ask how old the iPhone is and if it is under any type of warranty or not?
The iPads and iPhones operate in the same way.
Have you tried restoring the data using anything besides iTunes? Please, use TinyUmbrella, which is found on the following page to restore the firmware: http://www.iphone4jailbreak.org/tinyumbrella-can-now-restore-without-itunes.html
If you are on a PC, you can find the firmware files in the following folder:
Users\<User>\AppData\Roaming\Apple Computer\iTunes\iPhone Software Updates
If you are on a Mac, you can locate the firmware in the following folder:
~/Library/iTunes/iPhone Software Updates