How do you remove the lcd display not the housing as my lcd is damaged and broken.. It is the one with the black keys and i7 processor... I have replaced the macbook pro 13" lcd before...Is it the same process where you remove the glass first then unscrew the lcd from the housing itself ( 2 on each side and 3 on the bottom) and thats about it? Or do I have too take the entire macbook apart to replace the lcd? Thank you.