So, what I did, I put gain on the highest selection possible. But it looks like my mic lost sensitivity...

No, I don't use any, but I used to sometimes, before, high pass filter.

It worked, I could upgrade the firmware, thank you.

Ok, thank you for your reply. I should have read the doc.😐

Hum, solved. I realized that the command "sudo usermod -a -G dialout MY_USER_NAME" didn't return anything. So I did "groupadd dialout" then "gpasswd -a [user] dialout", then reboot. I can now successfully flash firmware. ​

Ok, thank you Alex.

"trigger function!" Which trigger function?

Success, the last try seems to be the good one: Thank you for your support!

Hello, So this morning I have this (screenshot): It starts the flashing process but is stuck (as seen in the screenshot) for minutes and nothing happens... I didn't try the command line version because I don't know in which state (usb, custom,etc.) I should put the audiomoth in before running the commands. Thank you.

I just updated the UDEV rules (I didn't notice this part) and you were right, the TTY rules part was missing. I also manually set the permissions for ports just in case. But it didn't change anything, I unplugged the audiomoth, plug in again, ran again the flash app but still receive the same error message as in my first message. If I run the conf app I have this (screenshot):

Same for me here in France, 29,50 €. That is ridiculous. This should be said/calculated when buying.

@Alex Rogers Thank you.

Could you also tell me what is the default Gain when in Default mode?

When you say 'Gain 2' do you mean the second setting as shown in this screenshot?