I have a number of P3 Adv/Pro controllers that have never reported their controller serial numbers in their flight logs.
The other day I happened to use one of them with an iphone and, low and behold, there's the controller's serial number in the flight log. I checked the others and they all report their serial number when using the iphone, all are GL300C's  showing either 1.9.2 or 1.8.0+ firmware in the App.
Other GL300C's all report their serial number under Android.


Does anyone have a clue why this should be?

I have a number of P3 Adv/Pro controllers that have never reported their controller serial numbers in their flight logs.
The other day I happened to use one of them with an iphone and, low and behold, there's the controller's serial number in the flight log. I checked the others and they all report their serial number when using the iphone, all are GL300C's  showing either 1.9.2 or 1.8.0+ firmware in the App.
Other GL300C's all report their serial number under Android.


Does anyone have a clue why this should be?