the iphone "iphone" could not be restored. an unknown error occurred (1)

http://support.apple.com/kb/TS3694

i have same problame..how to fix

Use the link razmee209 provided above.

Generally, error 1 is hardware failure.

Make an appointment at the nearest Apple location to have your iPhone evaluated for free.

Once the diagnostics are complete, the staff will explain your options.

Make a Genius Bar Reservation

http://www.apple.com/retail/geniusbar/