Tap on Security Wipe at the bottom of the list.
If your device is unresponsive or the touch screen is failing, you can reset it using a computer. Install and open on your PC or Mac. Connect your P'9983 to the computer using a USB cable . How to Hard Reset BLACKBERRY P-9983 Porsche Des...
If you have forgotten your password, you can trigger a wipe by entering an incorrect password too many times. Enter an incorrect password 10 times in a row. Tap on Security Wipe at the bottom of the list
A hard reset (often called a Security Wipe on BlackBerry 10 devices) will revert your BlackBerry P'9983 How to Hard Reset BLACKBERRY P-9983 Porsche Des...