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No LED's or recognised as USB

Hi I bout an Audiomoth USB last year and now the bat season is almost here I was setting it up. Working fine until I upgraded the firmware to the lates version 1.11.0 which the app said was not compatible. I tried to downgrade to 1.3 where it was previously but afterwards it was not recognised as a USB device and no LED's were lit. Using the paper clip method I could get it into serial mode and re-program it but no matter what version I used I could not get the LED to light or get it to be recognised in USB mode. Can you advise what I can try next or what I am doing wrong.

Thanks

Stewart

4 comments

4 Comments

Alex Rogers

Apr 11

I’m not sure what can be happening here. If the Flash App shows the version name and number in the bottom panel then the app is talking to the device okay after a restart.

I’d go through the flash process and then restart Windows to see if Windows is confused.

Is there any sign of corrosion on the board?

If you plug the device in and it isn’t recognised by the Config App, open the Flash App and without doing anything on the AudioMoth check if the Flash App is reporting that it can see an AudioMoth in serial flash mode.

stewartwlewis

Apr 12

Replying to

Hi Alex

Rebooted the laptop (W11) but couldn't get the audiomoth to be recognised by the laptop or your software either switched to USB/OFF or using the paper clip so left it until today. This morning had another go, same laptop and cable. Still no LED's when connected and wouldn't connect in USB/OFF mode but with the paper clip, the laptop connected and your firmware software recognised the device. Flashed with v1.3.1 and the green LED came on. I could then connect in USB/OFF mode and configure the device. Everything now seems to be working fine.

No Idea why this would not work yesterday but I am leaving well alone.

Thanks for your help.

Stewart

Alex Rogers

Apr 11

Hi Stewart, Can you confirm what operating system you are using. Does the flash process complete normally? Flashing using the paper clip is the correct process for recovering the firmware. Make sure that you do not have any batteries installed, remove the USB cable so that the device gets a complete power-up reset, and then see if it appears in the Config App. Alex

stewartwlewis

Apr 11

Replying to

Hi Alex

I Am using Windows 11. When I used the paperclip the flash process completed fully showing the correct version I updated the firmware to. After disconnecting the device from the computer, setting the switch to USB/OFF and reconnecting there was no green or red LED and both your flash and configuration software said no device.

I have since tried it on a W10 laptop and changed the USB cable. Now even with the paperclip the flash software shows no device connected and no LED's light.

Its an Audiomoth USB so no batteries.