Firmware-update: Sony PlayStation 3 3.55 - Gaming - Downloads - Tweakers
PS3 System Update v4.88 Sneaks Out - Download Links are Here - Terminal Gamer - Gaming is our Passion | PS4, PS5, Xbox One X/S, Nintendo Switch, Oculus Quest
PS3 how to replace the Hardrive and get the 4.88 update with a usb - YouTube