With your controller..? Nothing I presume.
Most likely the beeping was due to that your drone was close to an obstacle... below the sensor reach according to the user manual.
So
This is the part you have replaced. "The Yaw Arm"
The motor with the single ribbon is attached by three screws to the plastic gimbal damber board beneath the Printed Circuit Board.
Lets assume that you have the correct arm.
I do not know...
jftman
This is a very long and old thread but the information is still valid. You need to give a little more detail.
What model drone are you refering to?
What app do you use to fly it?
Has the gimbal been damaged in anyway?
Anyhow I will make...