Signal strength in Betaflight - BF < 4.1 and DJI OSD
If you use an older BetaFlight version or a new one but with a DJI HD system, you need to assign the LQ
sensor to a channel.
Keep in mind, that the LQ will remain at 100% while the Crossfire is in 150Hz mode!
In the Crossfire receiver channel mapping, assign LQ to an unused channel. If you set it up by LUA, you can
assign it to channel 1, even when you use the 8 channel mode of the crossfire.
In BetaFlight, set the assigned channel as
RSSI Channel
(AUX1 = channel 5, etc)
66