Go to Settings > Network Settings to connect your PS3 to Wi-Fi, or connect the PS3 to your router using an Ethernet cable for a faster and more reliable connection.
Select “Redeem Code” from the left sidebar of PlayStation Store if you purchased a PS3 game from another retailer and want it downloaded to your console. Your PS3 will guide you through entering the code and downloading the game.
Select “Add Funds” at the confirmation screen if your PSN account lacks funds to buy games. Then, follow the on-screen instructions to add funds to your PSN account using a credit card or PSN card. [2] X Research source
Select “Add Funds” at the confirmation screen if your PSN account lacks funds to buy games. Then, follow the on-screen instructions to add funds to your PSN account using a credit card or PSN card. [2] X Research source
Scroll to Game > Game Data Utility, then delete game data for games you no longer play. This frees up storage space on your PS3 console without affecting game progress.