BC127 Programming via USB

Hello,
I have a BC127-HD and I am trying to get it programmed via the USB_P, USB_N pins by using the MelodySmart USB App but I can’t get a connection to the module.
How can I get this work with the USB pins? Thanks

@ml.schuene

USB is not supported by the firmware, it was always reserved for future use but the need never arrived.

Regards

Matt