Notice the back of the WiFi PCB. There is the female pin-header connector for the LED board, and a series of gold pads for a manufacturing test jig.

If you are feeling adventurous, you may be able to find JTAG, serial ports, or other fun hacking opportunities among those pads.

If you remove the two screws, the electrical base unit slides out of the metal heatsink case. The electronics are potted and not easily accessible.

Re-assembly is the reverse of disassembly.