Check the inverter cable for yapoo telemetry. My cable had ground in wrong place. Also remember that only one serial can be set to Serial_Option 10 if you have two serials set to Options 10 it will not work. Check my topic:
Check the inverter cable for yapoo telemetry. My cable had ground in wrong place. Also remember that only one serial can be set to Serial_Option 10 if you have two serials set to Options 10 it will not work. Check my topic: