New access protocol Frsky transmitter should flash firmware which support Accst D16 and then could bind with Crazybee series flight controller . The bind procedure is :
-Plug Flight controller to usb
-Connect with Betaflight Configuration, went to CLI and type bind_rx_spi (lights will become solid) ,this bind code only compatible with Betaflight v4.0.0 or latest firmware
-From the X9 Lite, select ACCST D16 and launch Bnd
-Light on the flight controller are still solid but actually binding should be ok, to check it:
-type set frsky_x_rx_num The rx num should be the same one than your Taranis
-type save