PMP700 problems

[G0d5]

I have a mp4 PMP700 Portable media player, yes one of the cheap chinese rip offs. the graphics was changed over to SVGA at some point and im not sure how reset it back to its normal video settings. It turns on and makes a sound however all I get is a black screen, I can change the menu functions like brightness and contrast so i know the screen works. But nothing will show on the display

I cant extract the firmware on it either becuase it wont detect it, but i can transfer images and music and video on to it

EDIT:

http://www.ecvv.com/offerdetail/I303733.html