How to set up DJI OSD for the F405 V4 flight controller?

Please connect according to the wiring method in the figure below, or directly connect the FC and the Air Unit with a cable.

Note: Before using the cable, please check whether the order of the cable is correct.

1. Please connect FC to the Betaflight configurator.

2. Enable on the Ports page：

（1）MSP of UART1.

（2）Peripherals VTX（MSP+Displayport）

Note: When using BF 4.3, this settings are not required.

（3）Click save.

3. Please set the required OSD elements on the OSD page and save.

4. Open the CLI command line and enter the following commands.

（1）When using betaflight 4.4 and above firmware

Please enter the command：

set vcd_video_system = HD

set osd_displayport_device = MSP
save

（2）When using Betaflight 4.3.2 and firmware versions below.

Please enter the command：

set displayport_msp_serial = 0

set osd_displayport_device = MSP
save

After completing the above settings, you will see the OSD display in the goggles.

Note that Goggles v2 needs to additionally enable the OSD option in goggles settings, but Goggles 2 does not.