Hello I just have the problem that I can not flash the sonoff zigbee 3.0 usb dongle plus (CC2653) firmware. I would have preferred to do it with the macbook.
But I also tried the Windows PC with the Flash Programmer2. It looks like I can`t get the stick into bootloader mode. (pressing the bootloader button on the stick-mainboard).
For the E variant there is a browser flash version. I have not found such a version for the P
I have not managed the PiP variant. For this I am missing the instructions for mac-os
#Flash CC2653 Sonoff USB 3.0 zigbee Dongle P
bold cave
Actually the Sonoff zigbee P should be preflashed. But unfortunately it does not start in zigbee2mqtt