Be very gentle with the display connector!

My Problem

2 outer dc-in pins were black, and would only charge sporadically with a lot of fiddling of connectors

My Fix

Took about an hour and a half all up, first time removing the motherboard, and the guide is pretty much spot-on. Had two issues, one with the keyboard connector not seating correctly, second is still unresolved dead/dull spot on screen. Haven't worked out if it was from too much pressure from removing the fan screws or if the screen connector isn't seated properly again. Have pulled it out and tried again a few times but still there.

My Advice

Someone mentioned in the comments that removing the fan may not be necessary. If you can get away without pulling it off the board I'd say leave it.

Also because you have to pull out almost every screw inside the machine, I found printing off the guide and taping each screw to the picture of each step helped for putting the machine back together.