A powerful framework for creating these patches is , which loads patches from a user application. It utilizes the peek/poke syscalls (low-level read/write commands) to modify the system on the fly.
You will need a way to manage and transfer files on your console:
This is the standard firmware found on all consumer PS3 models. It is highly secure, restricts homebrew, and strictly validates commercial game licenses. DEX (Developer Export / Debug)
NEVER try this on a SuperSlim or late Slim model (e.g., CECH-3xxx or CECH-4xxx). You will brick your console.