Guys, that gadget is still functional
Peter needs to find a way out of the warehouse when he wakes up on board the hijacked Damage Control truck in Homecoming. As he rummages in his duffle bag for something to aid him in his escape, he comes across a semi-circular object. If you remember Avengers: Age of Ultron, you’ll know it as the key that caused the levitating Sokovia to fall from the sky (sorry, Wanda!). To emphasize the point, Peter then pulls out the head of an Ultron drone — which is still operational! That’s a good thing it doesn’t have MCU-wide repercussions.