I have a problem with an “EDL-1 Datalogger” — only the blue LED is blinking and the green one is constantly on. Nothing is being recorded or anything like that…
The wiring is definitely correct (100%), since another logger works fine, and the SD card also works…
As mentioned, I have tried everything… Another EDL logger works 100% reliably. What I noticed is that I’m unable to perform any firmware updates. The LED status remains exactly as described above.