ctrl-c the software, take notice which tty your device gets and use that for your command and run again.
sudo proxmark3-flasher /dev/tty.usbmodem881 -b /usr/local/Cellar/proxmark3/share/firmware/bootrom.elf /usr/local/Cellar/proxmark3/share/firmware/fullimage.elf
* You will need to modify the paths and tty to fit your system.
I tried to flash the your firmware and bootloader to my new proxmark3 rdv 4.0 on my Mac.
Doing this I followed the instructions (holding the button for firmware, pressing it for 5 sec for bootloader)
After flashing the firmware I now have the rdv4 on /dev/tty.usbmodem88888881 (lots of 8).
When I'm now trying to flash the bootloader it says that it waits for reconnect on that device, but the rdv4 appears again under "/dev/tty.usbmodem881" and the flasher waits for ever.
Any hints on this?
Best regards
Boris
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