Thanks for the response.
The Video link: https://youtu.be/iLM-47uCFrQ
I get the following output when I manually stop the service and launch the ./Arducopter.elf
"FRAM: Failed to receive Manufacturer ID 5 times"
In the video, I have also shown the output of commands 'top' and 'ps -e' before and after stopping the service and launching the firmware.