 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.7 L P# Z+ E7 k& s0 D
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.
; R2 ]7 x, C9 ?! w; d$ V/ l3 ^! z$ g1 _6 s( c* T4 O
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. |
|