Had to take apart laptop and now it turns on when i open the lid but shuts right away.

[Tsn4help]

Can this be because of a screw missing or in wrong place. I noticed i put one screw to early and you can see the philips through the hole but under the peice i was suppose to screw it in. HOw can i trouble shoot this?

 

[YourLocal]

Did you reconnect all the ribbon cables and wires to their original positions?

 

[cdabc123]

you could take everything apart and put it back together.