I got my P3A drone the other day. I charged both batteries, and the controller. I have the latest DJI GO app on my iPad. I updated the firmware for the controller last night (via the app). And I was reading the manual from DJI about updating firmware, and from what I can understand, you can update the aircraft, batteries and camera from the app (not needing to download the zip file and moving it to a microSD card). Is this true?