Laptop won't turn on after repairs

[twtduck]

ASUS A53sd gets power but won't even start into bios. It's probably something I did wrong during the repairs, but what?

 

[terroralpha]

do you hear a beep? maybe you didn't connect the monitor correctly? i only say this because i've done this

 

[ktolo]

The bezel around the top of keyboard.. where power buttons normally are.

Did you close it up again without connecting those connectors? I did that one time on a very expensive laptop beloning to a friend.
Was releived to find out i had just forgotton to connect the power butoon!