I’m trying to flash some ESCs that came off of a DJI M600 Pro with BLHeli firmware but I’m stuck on how to talk with the ESC. It’s not DJI’s run of the mill E2000 propulsion system on the M600, they’ve changed it from the documentation and aren’t willing to give me any details. There are 6 wires (two of them a twisted pair). I’ve read that it uses RS485 so I’ve hooked up the twisted pair to an USB RS485 dongle. The wires are going into the T/R+ and T/R- connections. There is something going on when I open up the DJI ESC updater software, but I think it uses a different protocol than it expects.
I can offer some pictures if you let me know what would be helpful.