APM2.6 installing firmware : Unable to open COM port: ttyACM

Ground Control Software APM Planner 2.0
1

Hi guys,

So I’m trying to finish setting up my first 3dr quad, but i can’t seem to be able to install the firmware.
Here is the output :

Started downloading http://firmware.diydrones.com/Copter/stable/apm2-quad/ArduCopter.hex Finished downloading /tmp/qt_temp.EG4295 Opening firmware file... Hex file loaded: 233322 bytes Unable to open COM port: ttyACM0

What i understand from previous posts is that ttyACM0 is my usb port, and i should be able to find it at /dev/ttyACM0. But it is not there.
Also, i’ve read that when plugging the apm to the computer, there should a “bip”, but no sound coming out.

I’m a bit lost and would highly appreciate any help.
I’m using Ubuntu 14.04, trying to set up APM2.6. Any hint ?

2

@OMG20Centz,
What GCS are you using so that we can move your post to the appropriate GCS sub Forum?
Regards,
TCIII GM

3

Khuufff, sorry for posting in the wrong section…
I’m using APM Planner v2.0.14

4

try removing the modem manager. It may have grabed the port.

5

Thanks Bill, that solved it all :slight_smile: