Your knowledge level is above mine on this. I am not sure what you mean by entering the SDK mode. We have all three drones,and several Python script programs. All the drones respond to these programs with different devices. i.e. tablets, computer, Raspberry Pi ) running various programs such as packet sender, Thorney, Window s10 IDLE, etc. Not sure tjis will help you, but your knowledge may help us, as we move forward to drone swarms. We have tried the router connections with success, but have not attached the Tello's yet to fly. Good luck!