I don’t think it has anything to do with the ground leads. It’s most likely a problem between the Flight Controller, the Version of Arducopter you are running, the ESC hardware and the ESC firmware.
Read the last few posts in this thread. The Dev has some interesting things to say:
You could try 4.1.0-dev and a few different Dshot protocols.
Hi Dave, again thanks for all your help. Before I try 4.1.0 , i just tried to connect to BL Heli 32 Suite and this is the error I’ve been getting lately
I’m running 4.0.7 , not sure what that error refers to.
Ok ,so I tried 4.1.0 Beta and still the ESC will not read on BL Heli 32 Suite, I get this error
I know the ESC should work on BL Heli suite , it was listed in their history of updates T-Motor 45A 4in1 ESC V2 is listed there, so not sure why I keep getting this error.
DSHOT600 is correct
It’s best to use BLHELI32 suite - I think the Configurator may no longer work, the last time it was updated was 2019. I know the BetaFlight configurator is no longer used since Chrome has changed how add-ons work.