Obtain your PS3 serial number and write it down somewhere, you will need it.
Turn off your PS3 by holding the power button.
Press and hold the power button until you hear a third beep, the first being the initial power on beep.
While on the recovery menu, select the third option: Restore File System.
While the PS3 is recovering, on the PS3 controller, press and hold, in order, triangle, circle, up, left, and the home button. While you hold the buttons on the PS3 controller, input your PS3's serial number on your PS3 remote control via the number pad. Note: If you fail to do steps correctly or fail to do them before the PS3 recovers, you must start again from the beginning.
Your PS3 will reboot. If it doesn't, start it up
If successful, your will now have QA options under the settings tab in the XMB
Read more:
http://www.ps3hax.net/showthread.php?p= ... post203698#ixzz1NOcXkKw0