On the back side of the FC you will need to desolder the currently bridged resistor to the 3.3V pad, then bridge the RX5 pad to the middle VTX-SW pad. Make sure all 3 pads are not connected together.
Once that is complete you will need to use 3 sets of cli commands to setup the VTX hard pit switch.
resource serial_rx 5 None
resource pinio 1 D02
set pinio_box = 40,255,255,255
save
first is to free D02 pin
then set pinio 1 to the D02 pin
the pinio box is turning on user 1 in the modes tab
Set User 1 in MODES tab in betaflight to control the 10V on the DJI plug.
Please note the VTX Pit switch will only switch off the 10V Pad on the DJI plug on the back of the FC.
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