Audiomoth stop working after firmware update fail

Hi! I got some audiomoths, I updated the firmware (update to 1.8.1) of some of them a few days ago as I was going to run some tests and everything was fine, however, today I tried to do the same with the rest I have but it showed a warning saying that it failed and that I made sure the audiomoth was in USB mode (which it was) after that the green LED that shows up when you connect the audiomoth stop lighting up when conected to the computer and it stopped being recognise by the apps. I tried changing the batteries, the USB cable, everything but it doesn't work. The worst part is that now even if I put it in default mode the LEDs don't light up so I'm afraid it doesn't work anymore. Could someone help me out?

4 comments

4 Comments

Alex Rogers

Jan 27, 2023

Hi, In the Flash App, there is an option under the menu to 'Show Manual Switch Instructions'. This will tell you how to manually switch the AudioMoth into bootloader mode, and will then allow you to reflash it. It's a bit fiddly, and involves removing batteries, holding a paperclip on the connections on the PCB, and then plugging in the USB. The aim is for it to power-up and immediately find the two pins connected together. This will always recover an AudioMoth so keep trying if it doesn't seem to work the first time. Alex

l.yllan2

Jan 30, 2023

Replying to

Hi, thank you for the reply. Unfortunetly there is one of the audiomoths that I can't seem to make work using the manual flash mode. Could there be another problem or something that I'm not doing corrently? I have tried several times to follow the instrunstions but the audiomoth's LEDs don't light up and the audiomoth does not enter flash mode so it's not being detected by the apps.

Alex Rogers

Jan 30, 2023

Replying to

It will almost certainly work in the end. Double check that the cable works and you have the whole sequence working with another device, then swap over to the other device. It's important that there are no batteries fitted, as the device needs to power-up from scratch when the USB is plugged in, and then immediately find the two contacts connected together.

l.yllan2

Feb 04, 2023

Replying to

Hi Alex,

Thanks for the help, I managed to made it work!