I recently had a similar experience with an LG G watch. Bought on craigslist for $5 'as-is' (I wanted it for parts), but turns out that the only thing wrong was

I recently had a similar experience with an LG G watch. Bought on craigslist for $5 'as-is' (I wanted it for parts), but turns out that the only thing wrong was the OS had been corrupted on it somehow. I was able to flash Android on it and it works perfectly!