I been trying to install 5.50 gen d to my friends psp phat but every time i install it, it goes to a black a screen.
So basically I go from
5.00 M33-4 > 5.00 m33-6 then 5.50 gen a > 5.50 gen b then 5.50 gen d
by the time i got to D , there always a black screen and it just sits there all black...