You have got to be kidding me.. there is all of google where you can find your question answered.. but anyway, all you need is a E3 flasher and a PS3 that previously had the 3.55 firmware installed. Once you do that, all you do is apply the E3 flasher to the PS3, and set the firmware back to 3.55. Then you finally go online, and install a CFW of your choice. I would personally recommend REBUG 4.7. Happy Modding