Need alittle help

I was looking through the forum and found that some ppl have had the same problem as me...."game could not be started" error message 80020148. I know its because of homebrew... The things is that my cousin had indstalled all that on my psp and then later deleted it.. so i dont know anything about how it works. Anyway i got this message from trying to play mhf2... just wanna know what i can do to fix it?? Can anyone help? Thanks a ton in advanced!

make sure you have a umd game or game demo inserted in your umd slot. Also check your recovery menu to make sure you have no-umd disabled

You can get to your recovery menu by turning off your psp, then when you turn it on hold the r trigger. This should bring you to a service looking screen, scroll down to configuration and your umd mode option will be in there.

i checked that but the game still shows the same message? Anything else i can try? Btw i also cant even use the update either... if u know what thats about?

Alright,

1. what system was mhf2 for?
2. whats the extension on your file? (.iso, .cso, .pbp)
3. where did you place the file?

monster hunter freedom 2 for the psp. Its a umd.

in recovery mode use format flash 1 n restore settings

[ace]

O so when you try and run an actual UMD it gives you that error? Or is it an iso?

Yeah, when i run the umd i get that message, and ecko... how do i use the format flash ( how do i get to it)