How to open the aluminum plate hanging ceiling?
With a wallpaper knife or key inserted into the gap, forced down a pull, hand a take it.
In the text shop to buy a soft plastic sucker, the first split in the middle, and gradually split the edge of the sucker you will use
With a utility knife or a screwdriver from the edge of the gusset part of the gently open, and then gradually remove the buckle plate.