Battery  

Use the JST port to plug in the LiPo battery.
Cut a small piece of thin, double-sided foam tape to adhere the battery to the circuit board. 

Align case

Position the screen and buttons to the cutouts on the case part.

Snap fit

Align the front case part to match the shape around the shutter button.

Press the halves together to join the case.

Tripod screw

An optional 3/8 to 25/20 thread screw fits to attach a tripod.

Use a flat head or the end of tweezers to thread the adapter.