Mamba 25 issue Reverse control after upgrade

[Mister-T]

Hello,

I've got a odd behaviour today when upgrading a mamba 25 firmware for a friend.
It was set on a Xray M18 with KoPropo ex5 radio (FM).
The firmware installed on it was an old one version 1.06 . My castle link on my laptop wasn't the last software so I put the most recent non beta firmware available on it (1.20).

I unplugged the Mamba25 servo wire from the FM receiver
I plug it into castle link
I upgraded the firmware and checked via read data if it was ok.
I unplugged Mamba25 from castle link then plug it back into the receiver.

Time for fun.
When turning on the car, surprise. The steering is now the throttle and throttle is steering.

I'm well aware that ESC does only receive signal pulse from the receiver so this shouldn't happen. But it does

Obviously exchanging servo wire on the receiver fix the problem. But having to program steering for programming throttle on the car is not ergonomic. Plus you loose the specific command to fine tune steering action.

I checked proper servo position, steering was on CH1 and throttle on CH2
Now it the opposite in order to have proper working of the car.

Anybody does have this problem before. ?

Thanks for your help
G.C

[suicideneil]

Updating the firmware wouldnt make any difference to the throttle and steering inputs, it simply sounds like they were plugged in wrong before and/or after you updated it, so now it looks like the steerign & throttle got switched; simply impossible to do that without swapping something in the programming on the tx or swapping the connectors over into the rx.

[Mister-T]

Originally Posted by suicideneil

Updating the firmware wouldnt make any difference to the throttle and steering inputs, it simply sounds like they were plugged in wrong before and/or after you updated it, so now it looks like the steerign & throttle got switched; simply impossible to do that without swapping something in the programming on the tx or swapping the connectors over into the rx.

Probably. I regret that I didn't run the car first without the update.

I have seen bad steering servo completly jamming onboard electronic (including esc) in the past. So I have a doubt.

[Arct1k]

Its the RX not the ESC... It probably always was that way and you didn't realize...

[Mister-T]

I did only unplug mamba plug on the receiver. I didn't even touch the steering servo.

Well, I might be able to find out a way to reverse this on his Transmitter.