Restore PS3 System Software
1. From the PS3 XMB Home screen scroll to Settings.
2. Scroll to System Settings and press the X button
3.
Scroll to Restore PS3 System and press the X button.
4. Scroll to Yes and then press the X button.
5.
You will now have the following options:
Quick Format — The format option will be completed in the shortest amount of time, but the least amount of processing will be done. If a specialised tool is used, it may be possible for some deleted data to be restored.
Full Format — All data on the hard disk will be removed.
6. Select the desired option (E.g. Quick Format) and press the X button.
7.
Scroll to Yes and press the X button.
8. Your console will now restore the System Settings.
9. Press the X button to restart your console.