Alright then, I've just ordered a micro sd + one of dem adapters for psp(cause they're so much cheaper than the actualy sony cards), they're supposed to arrive at friday according to amazon, I'll get right to it then.
So let me get this straight: I've got a friends ancient slim n light 2004 Date Code 8B and the System Software 4.05. If I understood the first page correct then all I have to do is download 6.20 and install it from the memory stick manually and then follow the hack instructions and I'm done...