Hardware Stuck screw back new 3ds xl

[Kaan3DS]

I'm trying to unscrew the back of my new 3ds xl to acces my microsd but the left screw is stuck and doesn't turn around when I try using a screwdriver , help!

 

[Shadow#1]

I'm trying to unscrew the back of my new 3ds xl to acces my microsd but the left screw is stuck and doesn't turn around when I try using a screwdriver , help!

Break it off then buy a new one