I’m bringing up some custom PCBs which use e-series modules. I have successfully updated Device OS on several of the boards, but one isn’t even able to enter DFU mode. The error I get is:
Unable to get serial number descriptor: LIBUSB_TRANSFER_STALL.
We are working on a pogo pin connector so I can get access to the MODE and RESET test points on our custom PCB, but until then I’m not able to manually enter DFU mode and am stuck with just the CLI.
I have tried the Device Doctor, but since I’m not able to get into DFU mode it wasn’t helpful and just directed me to post here.
Are there any other methods or tricks to get a board to respond to some sort of command if it won’t enter DFU from the CLI, and if I don’t have access to enter DFU manually?