Schritt 3 übersetzen
Remove this caked on thermal paste with the ArctiClean.
Do the same for the CPU and GPU.
Note: the black borders around the CPU and GPU seems to be unattached on one side. Don't worry, you didn't break it. Be sure to thoroughly remove the excess cleaning solution from under it by gently blowing it out if necessary. I'm sure it will evaporate in a timely manner otherwise.