# 6c Mini and PX4

**URL:** <https://discuss.px4.io/t/6c-mini-and-px4/39417>\
**Category:** Uncategorized\
**Created:** [June 25, 2024, 2:21pm UTC](https://discuss.px4.io/t/6c-mini-and-px4/39417 "2024-06-25T14:21:45Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![rjriggins11](https://discuss.px4.io/user_avatar/discuss.px4.io/rjriggins11/32/10825_2.png) [@rjriggins11](https://discuss.px4.io/u/rjriggins11)\
**Post date:** [June 25, 2024, 2:21pm UTC](https://discuss.px4.io/t/6c-mini-and-px4/39417/1 "2024-06-25T14:21:45Z")

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I just bought a 6c Mini for on of my quadcopters and it doesn’t seem to work correctly with PX4. The copter is made up of a TBS Crossfire com system, a 6c mini flight controller, a Lumenier 4 in 1 Pro Elite ESC, Gartt 2212 motors with 10" props. everything works fine with Arducopter firmware and the copter works fine with the old Pixhawk 4 Mini using PX4 and QGC.

The problem is the front 2 motors, (motors 1 and 3), don’t spin until the throttle is moved to about half way up. Motors 2 and 4 seem to react normally. I reinstalled the old Pixhawk 4 mini and it works fine. The 6c seems to work ok with Arducopter firmware but not with PX4. Is there a parameter that would correct this? I would prefer using PX4 as it has proven to be much more stable than Arducopter and I don’t need to learn differential calculus to program it.

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**Author:** ![rjriggins11](https://discuss.px4.io/user_avatar/discuss.px4.io/rjriggins11/32/10825_2.png) [@rjriggins11](https://discuss.px4.io/u/rjriggins11)\
**Post date:** [June 25, 2024, 5:53pm UTC](https://discuss.px4.io/t/6c-mini-and-px4/39417/2 "2024-06-25T17:53:03Z")

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I found the problem. I needed to identify and assign the motor on the Actuator page.