I lost my GPS once...I also sat on my GPS once, and then cracked the screen (dif story).
When I lost it, I wondered why they didn't have an app where you could find it.
But, if they would have had such an App, I would have thought that it was malfunctioning as it would have showed that the thing was in my house...turns out, that the GPS was in a hard to access pocket in a pack (that you access from inside the main compartment...I took everything out and it still had a lump in it).
John 14:6