Display Help!

I have a 2008 white MacBook. I decided to change the housing to black. I transferred all the internal parts and display however the display will not work now.

Any help is greatly appreciated.

I have not put everything back together ie. the keyboard is not attached completely, the screen is not completely screwed in and bezel is off. Maybe all these need to be in place completely for the display to work?? I don't know

It powers on (I can hear the internal stuff on) but no display or sound.....

Please help......

Your MacBook should work as you have it partially reassembled. I can only suggest checking all the connectors are correctly seated. If they are it's likely damaged during disassembly and reassembly. Did you take ESD precautions, using an ESD mat and wristband?