Copter 3-4-rc4 on Navio2- strange rehaviour

Hi All
I run copter 3-4 rc4 on Navio2 i lunch it by typing following command :ArduCopter -A /dev/ttyAMA0 -C tcp:192.168.1.155:5760:wait > /home/pu/starup.log
I connected micro minimoSD to UART port. But I get only NO INPUT DATA on screen.
When I connect to navio2 with MP throught TCP …data appears on minimOSD screen…
Is it correct ???
And One more question
How I can run ArduCopter to use UART port for minimOSD and USB port for telemetry ( with UART adapter of cours)
Thx in advance
Regards
Tomek

Cant help with your issues, but using USB UARTon Linux boards is a great idea.