One of my RFD900 radios was working fine for months but is now only showing 1 solid red LED. Using USB/FTDI, I'm unable to connect or reset it with MissionPlanner ("No heartbeat packets received") or with the 3DRRadio.exe ("Failed to enter command mode") config tool.
I've tried all the baud rates and even tried different USB ports. The other RFD900 connects just fine using the same USB/FTDI connection.
Any suggestions on how to troubleshoot this? Or how to reset the device?
Thanks in advance!