Instructions
Power on your PS3 Slim system. The power switch is on the back of the system.
Connect your PS3 Slim to any active Internet connection. You can connect an Ethernet cable directly to the port on the back of the system or use the Network Settings page to connect to a wireless network. You can access the Network Settings page from the "Settings" menu on the main system menu.
Highlight "System Update" from the "Settings" menu and press "X." Your PS3 system will automatically search for any available updates. If updates are found, you will be prompted to download and install them. Simply follow the on-screen instructions to complete the installation process.