snip
Underneath the laptop? I have a very small slide switch on the front edge
of a Lenovo that connects/disconnects the WiFi. could ir be something like
that?

Ron Moore

No Ron, It's a micro switch. the hole for it is about 1/16th of an inch in
diameter.
The switch is set about 1/16 of an inch below the surface of the bottom.
You feel a slight click with you depress the switch with a pencil point or
pin.
I've them on various laptops.
Yeah, the one you mentioned is the wifi on off switch.
Al