View Full Version : help needed as im not the brightest

March 9th, 2009, 19:36
can anyone help me with a step by step guide in to downgrading my sons psp 3.90 ,model 1003,we have borrowed a pandoras battery and have a blank memory card,so what next?? any help would do as i dont have a clue about doing this

March 10th, 2009, 04:52
here download this and it will create the magic memory stick for u click on the begin.bat or start i forgot what is says

this will take u back to 1.50-http://www.megaupload.com/?d=EMBPKIOU

and this one will take u to 3.80m33 use whichever u like


edit: this only works on xp

if u have a slim dont use the 150 one

March 10th, 2009, 10:25
thanks for the advice,so i have downloaded the 1.50 downgrader(is this the magic memory stick?) and the 3.80m33,what next..lol..told you i was'nt the brightest..did i only need to download 2 items? what im lookin for in the end is that my son can play psp games im not really after the emulators(i think)
thanks again

March 10th, 2009, 15:34
ok ive done that and my psp is now showing 3.80m33,so how do i put a game on it now?do i just put it into the games folder?and ????
p.s.what type of files do i need to play .cso ?? iso??

March 10th, 2009, 15:54
sorry, but talking about isos or csos (compresed isos) is not allowed in this forums

March 10th, 2009, 17:15
ok..how do i play my back-up games....where exactly do i put them on the memory stick??

March 10th, 2009, 22:55
I would recommend updating to the latest custom firmware before trying to play your backups

go to the firmware update icon on ur psp and i think it will update ur psp to the latest custom firmware the latest is 5.00m33-6

after youve done that format your memory stick so it can organize all the folders for you

you will know where to place ur iso cso's after that