 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.0 r6 I: v6 q, C6 C# V7 t3 E
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.
% f; n$ \1 ~3 p9 H; f! j9 ]. H8 q. k# A1 ^; w1 d5 s* M" C$ T- ?: X
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. |
|