If you are having difficulty binding your XJT Lite Module for D8 mode compatibility with the Tinyhawk SPI Receiver, please follow the instructions below:
Connect the model to Betaflight Configurator and select the "CLI" tab from the left side menu.
Type in "bind_rx_spi" (for Tinyhawk S, Tinyhawk Freestyle on BF 4.0) or "bind_rx" (for Tinyhawk II Series on BF 4.1) and press enter. The blue receiver LED should be solid.
With the model approximately 5-6 feet from the transmitter, enter binding mode with your transmitter. The blue LED on the FC may or may not start to blink, it's okay if it does not react. Then take the radio out of binding mode.
While still in the CLI tab after taking the radio out of binding mode, type "set frsky_x_rx_num". Press enter.
Type "save" and press enter. The FC will now reboot.
Connect the model to Betaflight Configurator and check the "Receiver" tab for connection.