 鲜花( 0)  鸡蛋( 0)
|
If the "Button" means the one on Remote Controller, you can try to find the battery inside the Remote Controller.
8 p# l* K9 P2 h( \In most of cases, there is a screw on the cover, sometime the screw might be covered by label. If the Top/Bottom Covers of Remote Controller are not secured by screw, then you can use fingernail or screw driver to open it.% r# M0 w5 b+ o: l7 L; ^8 r* x' Q
) J- X$ @% g' M9 I4 ~0 x. r7 _3 h- y
If the "Button" means the Up/Down Switch inside Garage, then thing might be more complicated. Basically, you need to check the electric circuits by multimeter. |
|