The Xiaomi Chuangmi 720p camera is a HD smart ip camera from the Xiaomi brand.
Is a very cheap camera that works with the Mi Home app ( set it to Mainland China ).
The camera has the infrared LED and a Infrared filter that enables night vision.
So those are some of the specs reassumed before the disassembly guide:
1) Remove the 4 Torx screw and be careful to the plastic clip that holds the back housing in place. I suggest to use a plastic tool ( like the one used to open smartphones ) to unclip without damaging the case.
Remove the plastic connector on bottom right.
When lifting up the pcb be very careful to the cables soldered on top.