There is no micro battery flap switch in place

Camera (70D) wasn’t turning on, noticed the battery micro switch wasn’t there. I haven't opened the camera yet, but I can see that the battery switch is not in place. I saw several threads that people this switch just fell off. My question is, if I just put the pads together instead of this switch, will it work? Do you have to buy the entire board with this switch, aliexpress there is a lot of it