I noticed that too but the ones with no solder also have no pads or traces
on the PC board so they must be for mechanical support only.

-Mark

On Sun, Mar 29, 2020 at 9:44 PM OlRivrRat <OlRivrRat@comcast.net> wrote:

>         I'm amazed by all the Wires with No Solder ~
>
>
> On 29 Mar , 2020, at 3:30 PM, Alistair Bell wrote:
>
> > I couldn’t help myself, popped it apart.
> >
> > What do you think about the circled area? Chip on other side
> > https://shufti.files.wordpress.com/2020/03/img_5254.jpg
> >
> > Alistair
>