Modifications apportées à l'étape #4
Lignes de l'étape
| - | [* black] |
|---|---|
| + | [* black] Rotate the 4520s and then open it with the screen facing you. |
| [* black] The switch cover is located above the keyboard. Push the switch cover away from you until it comes loose from the 4520s. | |
| [* black] Lift the switch cover away from the 4520s and set it aside. |