Brewology

Ok i took a psp 2.0 update and opened it up in pbp unpacker then i extracted the files and opened up the PARAM.SFO in pbp unpacker and edit the names to say v 2.80 then i remake the eboot with all the data and stuff but i use the new PARAM.SFO I try iit out on my psp and it starts up but right when it is about to load it says game cannot be started

can 1 of u guyz help me!

I really want to downgrade.......I have 2.71 FW now

you cant

as of now downgrading is impossible so you should think outside of the box

like looking into that loco roco demo for a possible exploit... i think there might be 1 there but i dont know how to hack it or w/e so im leavingit to you guys