Thank you for the help @alexey.bulatov,
I actually caught the lower case -c yesterday, but fixing it had no effect.
After the sudo arducopter -A udp:10.0.1.14:14550 -E /dev/ttyAMA0 command, I got for the first time the response from Navio2/RPi
Raspberry Pi 2/3 with BCM2709! (as shown on screenshot)
However, After immeadiatly connecting with Mission Planner still no good on 2nd GPS: