Slight power issue: unplugging headphones resets Pi!

[Popcorn]

Another issue to check is just to make sure all your solder points on the Powerboost are solid. I had one ground wire threaded through the Powerboost and soldered on the backside, but the solder didn't attach to the board, just the wire. So it was effectively a loose wire. Every once in a while when I knocked it, the whole thing would reset. Had to test it all and resolder. Something to check at least.