This optional feature enables you to set the hardware on your nodl so that it turns back on automatically after a power outage.
Disconnect all the wires and the USB bridge (if installed). Remove the four black screws on the back of the device. Carefully remove the top cover. The small fan has a short wire, be careful to not pull on it. You can disconnect it if you want.
Set the “auto on” jumper according to this picture.
Put the cover back again.
Put the four screws back (it’s easier if you plug back the USB bridge before screwing).
Reconnect all the wires (finishing with the power supply), the nodl should turn on.