For low frequency (125kHz) reading/cloning
lf hid read
lf hid clone -r ********************
Software: RFID Research Group
Use Homebrew to install pm3. Official Docs
Install dependencies
xcode-select --install
brew install xquartz
Tap the proxmark3 repo
brew tap RfidResearchGroup/proxmark3
Install proxmark3 stable
brew install proxmark3
* With your Proxmark3 unplugged from your machine, press and hold the button on your Proxmark3 as you plug it into a USB port. You can release the button, two of the four LEDs should stay on. You're in bootloader mode, ready for the next step. In case the two LEDs don't stay on when you're releasing the button, you've an old bootloader, start over and keep the button pressed during the whole flashing procedure.
pm3-flash-all
If seeing ERROR: Bootloader Doesn't Understand CMD_BL_Version
proxmark3 /dev/tty.usbmodemiceman1 --flash --unlock-bootloader --image /usr/local/share/proxmark3/firmware/bootrom.elf