emu's wont work on psp.

okay, so i have 3.90 M33-3 custom firmware(fat psp), and every time i try to run nesterj1.20 alpha, it says...

this game cannot be started. The data is corrupt. : any one have anything i can try to make this emu work?

i even reinstalled 1.50 kernel to my psp, so i have no clue what to do, any feedback would be appreciated, thanks.

(ps, it happens to every emulator, not just nesterj.)

Emulators that use 3.xx kernel(GAME380)

Nesterj(Older)
UO gpSP Kai
Rin

Emulators that use 1.50 kernel(GAME150)

Daedalus
OF gpSP
Nesterj(Newer)
UO SNES9x

when i put it in game, game150, or even game380, this error still pops up, crazy... anyone else have any input?

yeah I have 2 psp's i can put the mem stick in 1 and my rin starts fine, in the other it says data corrupt ive double and triple cheaked the settings. I guess my other psp just doesn't want to play gbc.

i was having the same problem with the emulators and other things, so i downgraded back to cfw 3.71m33-2 and downloaded the 1.50 kernel version 2.