Plz help me how to reverse my channel.
I hope flysky ct6B and for the unknown reasons settings are not saved on it when I save it dorm USB
So no way to reverse channel From transmitter
Now guys Plz tell me how to reverse channel in kk flight controller. 

I don't think kk board supports reversing the channels. Usually it's on the transmitter.  Have you check out some tutorials on YouTube ? You should be able to reverse the channel on your transmitter . Least of all you could try updating your transmitter firmware .

Sent from my Redmi 4 using Tapatalk

Anyone else got any idea?

I found a soliton

Follow below Steps to reverse channel.
Go to MENU.
Scroll down and go to Stick Scaling. Here you can see all 4 channel Roll (Ail), Pitch (Ele), Yaw (Rud), Throttle.
Select the channel and Change value to Negative (-)
After doing this step your selected channel will be reversed.
For More Detail visit https://www.flyrobo.in/blog/how-to-reverse-channel-in-kk-flight-controller-kk-2-1-x-flught-controller-flyRobo?tracking=6cbcds81074b7rcindia