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Changing pwm channel of motor to another one

My team are using pixhawk 4 for our rov
We have a problem that channel m5 in the power module doesn’t send any signal to the thruster connected to it
We tried more than one thruster and made sure that all of them are working fine and the same goes for esc
So my question is can we edit the assignment of channels to the motors so we assign pwm channel 7 or 8 to thruster 5? Here is our configuration

Hi,

Check the SERVOn_FUNCTION parameters. It should work if you set SERVO7_FUNCTION to “motor5”

My team just informed me that the thruster worked fine and they don’t have a clue what happened
Thanks for the help