I got my P2 today!!! Got everything assembled and charged...but...do I need to update firmware on the craft and the controller? How do u do this? There is so much info on this, but kinda scattered....anyone know of step by step on this part of it? *i already installed the assistant software on my PC.....I also see there is a driver installer download, what is that for?....what gets plugged to what to do the firmware updates... Do you have to do all this before flying? Confused. Please help!