How to Reset an iPhone Passcode
By Jason Artman
Secure your Apple iPhone with a passcode -- a four-digit number that you must enter before you can use the device. If you are the first owner of the iPhone and have forgotten the passcode that you initially entered, you can simply reset the passcode by connecting the iPhone to the computer that was originally used to activate it. However, this does not help if you purchased the phone used and are not the original owner. Put your iPhone into recovery mode to restore the iPhone and clear the passcode.
Step 2

Hold down the power button on the iPhone. The screen will change asking you to use a slider to power the unit off. Use the slider to power off your iPhone.
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Writer Bio
Jason Artman has been a technical writer since entering the field in 1999 while attending Michigan State University. Artman has published numerous articles for various websites, covering a diverse array of computer-related topics including hardware, software, games and gadgets.