I'm a first time owner of a DJI product and as I started up for my first flight of my mavic air, the remote would uncontrollably beep and stays beeping.  After long durations it would eventually stop but this is happening every time right when I turn the remote on.  I have to say this is quite a bad first impression to DJI as I was genuinely excited for my new purchase. Please someone help because I don't want to be disappointed in this company.

You may want to read the thread below , especially post #6
https://forum.dji.com/thread-132640-1-1.html

These are the some of the reasons why the RC is beeping:
1. RC is Low on battery (1 white Led blinking)
2. RC sticks are not in the central position (make sure the sticks are centered when it's powered on and not connected)
3. Firmware upgrade failure (connect to DJI assistant to refresh/reinstall firmware of RC)

PS013 Posted at 2018-2-2 09:56
You may want to read the thread below , especially post #6
https://forum.dji.com/thread-132640-1-1.html

I have used both DJI Go app and Assistant 2 to update the firmware of the controller dozens of times.  Same result everytime.  Assistant gets hung up at 66% then controller proceeds to beep.  DJI Go 4 app gets hung up at 72% then proceeds to beep.  It is truly maddening.