My xiaomi yi action camera seem not working well.

My xiaomi yi action camera not working well. When I on the camera, its only 'bip' and bip, does not show can be connect to phone. after several times, will be ok, then when I connect to my phone, the camera do not show the picture, just dark. I don't know, either the lens or the hardware broken. But the lens did not show any abnormality, look fine.