Okay, here is my guide written especially for you:
How to open your laptop(5742)
First things first, unplug your power supply. Your laptop doesn't like it to be plugged in the back while being screwed on the bottom. It's not that slutty...
Unscrew all screws at the bottom. They aren't hard to find and none are hidden. Make sure you remove your hdd and that strange chip thing(idk what it is). You don't need to remove your memory, in fact remembering what you do now will ease up the assembly later on. If you did everything right you can lift up some of the edges already, however nothing should fall apart yet.
Flip your laptop keyboard up. Note these small little thingies on top (and 2 on the sides) of your keyboard. Press them with something small and whip up your keyboard. Note that you can use anything small. Like a pair of scissors
(or your penis). Disconnect your keyboard and you should now have disassembled you keyboard. This is a great moment to clean it. Yeah.. really, clean that thing.
Unscrew and disconnect everything you can(if you are bad with unscrewing, unscrew more than you can). You should now be able to lift of the top of your laptop(with the speakers, touchpad etc... Computer lovers usually call this step second base. (I am aware most laptops are under legal age, but you gotta love those new chips!).
You should now see your motherboard. Look carefully what needs to be disassembled to remove it. But as soon as you can remove your keyboard and put it upside down on something
not metal/static or hot(like your heater or your gf).
Remove all the dust, small insects, tarantulas and that sister of you that went missing two years ago from the places where I applied white dots. I also re applied tape on the second row of dots. Apparently they fucked that up on my laptop.
Assemble!