I just did my first firmware update after just receiving my Phantom 3. The bird came back as successful. But then when I tried to update the controller, it did nothing. After checking the TXT on the card, it stated that the firmware I was applying was either the same or older then what was already on the controller. So I ask: Is this normal for a 1st time update? Should I be concerned? Also, should I always have a current BIN file on my SD Card? Thanks.