Historique de l'étape n° 1 de 戴尔灵越 Inspiron 15-7560 风扇更换

	[* black] *Step 1. Open the computer protective case.*
-	[* black] First power off the laptop and turn the back of the computer up and you will find there are 11 screws.
+	[* black] First power off the laptop and turn the back of the computer up and you will find there are *11 screws.*
	[* red] Use a screwdriver to unscrew the screws on the back of the computer and open the back of the computer. Because the back shell of the Dell computer has a lock design, the three screws below cannot be unscrewed, as long as the screws are screwed to the maximum and slip with some sliding sound.
	[* icon_caution] In addition, opening the back cover of the computer can be a bit laborious. You can use a hard object to pry it through the gap or force it from the air vent.