Take your time with opening up the case, I recommend using something like a credit card to work your way around and un-snap the casing. Also make sure that you're grounded by either wearing an ESD strap or touching a piece of metal every so often.
Music: Sleep -SparkyBeats
https://soundcloud.com/sparkybeats-1/sleep
I do not own the music in this video nor do I make a profit off it, this video is sheerly for educational purposes, all rights and credits go to the rightful owner.