First off, look at the pogo pins and make sure alligne dto LPC port on xbox, then snug down adapter so nice and flush with motherboard.
If you do not have solder in the LPC holes, use supplied rivits.
Also you can use teh white outline of LPC port for alignment, make sure one side of solderless aligned with it so you knwo your in good posistion.
Now verify D0 is connected in right spot for your box.
Now power up XBOX while still open, but harddrive and DVD and the video cable plugged into teh xbox.
Now watch the lights on the xbox power and eject buttons. Ifthey only stay green means contact not good.
Remove solderless and clean all contacts with rubbing alcohol and try again.
Also, verify using xchip solderless adapter ( 2 wires running on it )