I have been trying to get my chip installed for about three weeks now. I am installing on a version 4. When I booted up the first time cd-rs would play. Originals would only play if I disabled the chip. I tried to get dev. mode to work but it doesn't. After I tried that it seems as though the chip has been permanently disabled. It will play originals without disabling the chip but now cd-rs won't work. I have used a multimeter and tested all of the points and they are in the correct spots. There are no bridges showing up when I test it with a multimeter. Is the chip bad since dev. mode and no backups work? Thanks for any information.