How can key"id PRT SC" be activated?

I recently interviewed someone on my DSLR with a lapel mic. I don't know if the battery is dead or what just yet, but I had the mic on and everything but all I hear is a humming so...

You buy a tv that has a brand called Tusken and you don't know anything about that brand and that brand doesn't have a website and you don't know the brands origins. You buy a pop...