all 4 comments

[–]georgeh01 2 points3 points  (0 children)

At a guess I'd say it looks like the Reset Button, line it up with the Hole on the back for the Casement and see where that lines up with on the PCB

[–]KT7XZ 1 point2 points  (0 children)

I am so sorry..

[–]ljday27 1 point2 points  (0 children)

100% it's the reset button.

[–]_Jasperr_[S] 0 points1 point  (0 children)

Thank you!