mp4/pmp slide panel
 

i have a portable multimedia slide panel
it looks like this one
slidepanel

*the version of the firmware is v4.01.080714

i open it found nothing written on the battery
only these symbles:
aj280

*i'm facing 2 major problems
while working with frmpro and trying to burn a dictionary "for instance"
this message occurs:

FRM_VFS_NOT_ENOUGH_FREE_SPACE_ERROR(12) -- !

even when i tried to install the full firmware the player is dead
and the screen either shows this message (loading...) with a blue scree or a white blank screen
by the way i can only play nes games i wanna upload my pmp so i can play gb games or snes games
plz help me..
thank you