I am new to the DJI family and bought a used FC 40. Which works good but I have a question about finding out what is installed on the Phantom FC 40 and the controller. I have downloaded and installed the following on my PC, DJI Nazam assistant 2.20, DJI win. driver installer and RC system Installer v1.2. Can anyone give me the steps on finding out what is already installed which works very well and the steps to upgrading and if I should upgrade. I am just worried that I will screw something up and my Phantom will not fly or worse fly away and never be seen again. Thanks in advance and HAPPY flying.