Use the blind chip on the bottom left corner of the door.If the scrapings do not appear on your blind chip, they will be on the floor.Make sure you grab them with the chip.

• 向左转两画面，打开物品栏，用鼠标点住门把手最尖的部分，把它拖放到右边的地脚线有个黑点的地方（如下图）得到钉子。