Ok, I have a PS3 phat and its currently running 3.70 for the firmware. I'm curious if there is a way that doesn't involve soldering or buying any extra hardware that will allow me to install a custom firmware on it. I've been to a few different sites and many of them look rather questionable. Do I have to be running a certain version first? If so is there a way to downgrade?
Also, I see some people talking about NAND and NOR, what is the difference here and how do I tell which one I have?