Circuit boards

I've been trying to tidy up, and have been finding lots of impulse buys.  This shows the circuit boards from two tiny cameras.  I barely even tried them, but they have both died now. In one case, I don't know if the hardware might have still worked, but the App to drive it no longer exists. The thing with the wires is the battery; I assume it's a lithium one, so I'm not opening it.