Hi everyone! I have an Air 2S I bought last year. It has worked fine until august this year. When I tried to take off, it showed "IMU calibration required" and the gimbal could not be titled / rotated. I tried going into settings > imu calibration, but the start button does nothing. I also tried hitting it 3 times on the front like some people suggested, but that also did not work. I don't want to send it in service because I had a bad experience with DJI service. I'm wondering how did this happen out of a sudden - The drone did not suffer a crash or anything. Is there any way I could fix it myself, or do I need to go to a service?