Thank you @LanderU
I have a little bit unclear about your advice. Which part of instructions you provided should I follow? Is that "Build APM using waf"? And which method do you suggest: "cross compile" or "natively"?
I am using your APM rover (frambuesa) (install firmware by compiling command
sudo apt-get install apm-rover-erlebrain) and I always get this pop-up message. So should I update my firmware and how I can update my firmware to version 3.2.1 as suggest in MP?