Today someone hit my car, which was parked on the street. I checked the "Events" of the 70Mai app and the camera recorded nothing! I had previously set the collision sensitivity to the highest possible, but nothing seems to work, as my camera is apparently not making any emergency video, so if someone hits my car again, the camera will be useless!
I have my Dash Cam 1S connected to a 5v cigarette lighter output with the adapter and cable that comes in the box, with a 128GB class 10 SD card from Sandisk. When I'm driving the camera works normal, only parked does not record when something happens.