Custom firmware

Custom firmware, also known as aftermarket firmware, is an unofficial new or modified version of firmware created by third parties on devices such as video game consoles and various embedded device types to provide new features or to unlock hidden functionality. In the video game console community, the term is often written as Custom Firmware or simply CFW, referring to an altered version of the original system software (also known as the Official Firmware or simply OFW) inside a video game console such as the PlayStation Portable and Nintendo 3DS.