Mavic Air Random Spinning Problem [Controller Analog Stick Repair]

My drone started spinning randomly during flying upward or downward. I realized not the motor causing the random spinning of the drone but the left analog stick of the controller. I tried to recalibrate the controller several times, but no success. As you can see in the video, when I moving the left stick up and down, the controller sending randomly left or right turning signals. In this video, I show you how I solved this problem. You just have to clean the analog stick with isopropyl alcohol, thereby provide the proper contact in the analog stick.