3.50 Downgrade tutorial

[kenlfc]

em i need new psp wat should i get fat psp or slim

[reaperom]

I tried downgrading from 3.50 to 1.50 firmware but everytime I get to update X.YZ and run it. it says it can't find update.pbp please I need help some please.

[icegiRl]

i can do all steps and my firmware is 3.50 but i need lumines can anyone say how to downgrade without lumines?

[scoremen]

It's possible to use another game whitout being lumines????

[S.c.O.o.T.e.R]

i dont understand it at all u should make a vid on youtube that would be easyer like make a link on this page

[S.c.O.o.T.e.R]

any 1 else not understand it like me

[k_sizzle149]

So does it matter what kind of psp you use or just the firmware?