Hello, I am unable to use my midiboy, my Mac does not recognize it and I cannot upload sketches. I tried on Big Sir, and a older Mac with Catalina and no luck. I made sure all of the settings are correct in Ardunio IDE. I took the battery out. I had any unit professionally soldered and all of the connections are verified. Its not the cable, I tried another cable, and also using the same cable I tried a Arduino mega board and it is immediately recognized.
“the selected serial port
does not exist or your board is not connected”
The unit does not show up in disk utility, or as a serial port in Ardunio.
I am seeing is the “K” logo when powering on in programming mode and normally.
Are there any step I can take to troubleshoot?