Open the battery cover and remove the AA battery.

Remove the three long screws from the top-left, top-right, and bottom-right corners.

Remove the short screw from the bottom-left corner.

Pull the two halves of the device apart, but don't try to separate them entirely yet. Cables connect the two pieces.

Remove the battery cover from its hole.

Disconnect the sliding connector.

Remove four screws.

Desolder the ground pin. The hot shoe can now be removed.

Remove the lock pin with the spring by unscrewing the screw.

Remove the four screws with smaller heads from the bottom, then remove the hot shoe and the metal shield.

Remove the screws with bigger heads that have springs attached.

Next remove pins.

Desolid four pins

Remove PCB.

Remove PCB

Remove pins from case