How to Crack iOS Passwords
Plug your iPhone/iPod/iPad into your test computer and place it into Device Firmware Upgrade (DFU) mode. Load the iOS Forensic Toolkit by inserting your USB license dongle into your test computer and running Tookit.cmd.
To enter DFU mode, simply power the device off, hold down the Home button (bottom center) and sleep button (upper corner) at the same time for 10 seconds, and continue holding down the Home button for another 10 seconds. The mobile device screen goes blank.