Recently I came across a Dinkie Dino virtual pet toy while I was at the Goodwill Outlet stores. Upon receiving this item the right side button wasn’t working like it should. After I took it apart a few times and cleaned all the contacts. The buttons still failed to work. Even after trying the tin foil trick by cutting a small circle in tin foil that would sit over the contacts and would touch the pads upon contact. This still did not work.

What I’ve noticed is that during manufacturing there was a small solder ball that was soldered to the board. This appears to be a manufacturing error. If you have this same toy and are experiencing contacts not making contact upon pushing. Check the contacts on both sides.

This is a photo of what the solder ball looked like and how it was obstructing the contacts.

This is what it should look like after you suck up the solder with either a solder pad or solder sucker.

Here is a video that shows the solder ball and what the other side should look like.