Ever wanted to unlock an iPhone when you did not know the passcode? This article tells you how to hack an iPhone's passcode. This will open the contacts app from which you will be able to browse, edit, email any contact.
Tap the "Emergency call" button on the lock screen.
Then, enter "####".
As soon as you enter"####" tap the dial button.
Immediately, press the lock button which is on top of the iPhone.
Ta-daa! you have unlocked the iPhone. However, you will only be able to call, edit and email any contact.