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If the "Button" means the one on Remote Controller, you can try to find the battery inside the Remote Controller.
$ m! W3 ^$ H- j% Y7 B1 [4 BIn 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.$ e- B; F6 d9 n% I8 Z* C; s
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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. |
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