Instructions
Power off your PS3 if you have it turned on.
Press and hold the ̶0;Power̶1; button on the front of the system.
Release the ̶0;Power̶1; button after you hear three beeps.
Turn on a PS3 controller.
Select ̶0;System̶1; and then ̶0;Format.̶1;
Choose ̶0;Full Format̶1; and wait for the hard drive to be completely cleaned of all data. This process can take several hours depending on how much information is on the hard drive.