Install the Raspberry Pi
Tip: Don’t insert the camera ribbon until after the Raspberry Pi is installed. You will do that after the Pi has been completely installed.
TIP: Don’t tighten any of the standoffs fully until they are all started. Then go back and gently tighten each one to complete the Pi installation. This makes it easier to align the Pi with the mounting holes in the case.
Place the Raspberry Pi into the case bottom over the mounting pillars.
Carefully fold the camera cable around the Pi to stick up next to the Ethernet socket via the cable bypass machined into the inside of the case.
Screw the M2.5 20mm standoffs into each corner of the Pi.
Now insert the camera ribbon cable into the CSI port of the Pi.
NOTE: The CSI Port has a locking inner connector just like the camera module; open and close this connector the same way.
Again, be sure to seat the inner connector fully to get a good connection.
And be careful to keep the tin connectors level to ensure a good connection.
Add the extended 2X13 pin (26-way) header to the Raspberry Pi GPIO pins, on the side opposite from the USB ports.
Make sure to push down firmly and seat the header all the way down onto the GPIO base.
Now go to Step 3: Install Push-Button Switches