I have : A MacBook pro 13.3" 2011 model (OSX Lion) iPhone 4S 16GB Black - On T-Mobile (EE) The latest version of iTunes Hi I had tried restoring my iPhone 4S 16GB today because of a signal issue. When I had clicked all the settings for restoring, I waited for it to restore. I get an error message quoting "(-1)" Shown Below I press the "More Information" button, which takes me to this link - "http://support.apple.com/kb/TS1275?viewlocale=en_US&locale=en_UK" I read all the troubleshooting instructions and none of them have worked. I have checked out other forums and they haven't been of any use! Thanks Ol'