you need to ask the person you bought it from if it has been flashed. The chips come with code that doesn't allow you to play backups, you have to put the toxic bios on it yourself (if they didn't do it for you).
it works now after i did that. have you ever had a game after you backed it up when you put it in the screen would start like jumping up and down put you can still see the game ?
no i only back up the games i own. i have tried to find the threads you said you saw but i haven't had no luck so for i guess some games ppl who download games online thats happen to but i would think that if it's a downloaded game online it could be a bad file on the net