Surface Pro 3 won't power on after removing s cracked screen

I have performed a screen replacement for the microsoft surface, I haven't been able to turn the surface on, I don't hear the fan or anything. I made sure I secured the battery connector on top of the connector. I have it plugged in and the plug LCD lights up white. I hooked up a mini HDMI connector to TV to double check if surface is peeing on, no luck getting anything displayed on TV.

Besides the screen, my surface was operational right before screen replacement.

What else can I verify to make sure nothing else is damaged?