I was working fine with the internal wifi dongle but I need to change to 5 Ghz one. I did the following:
Edit the following file:
And add the following lines:
But a wifi hotspot was not created by Erle Brain and the light in the usb dongle is not blinking. Here are some outputs:
I believe this problem is similar to this one:
but I thought maybe we can solve it without flashing again.
I did "sudo apt-get update" while installing APM but not "sudo apt-get upgrade".