open up my laptop entirely

[casta_baga]

I accidentaly managed to break off the DC (I think it's DC, the
part inside the laptop that the power cord plugs into) connector.

I can't for the life of me figure out how to open up my laptop entirely. I have unscrewed every screw but can´t find the way and I´m afraid to break it off....
it still seems to be screwed together in the middle. Any pictures or guides on how to do this,.

thanks in advance

 

[casta_baga]

all done, i opened it and fix the connector...
i have to say, HP sucks