My ec1 is acting wonky, it moves all over the place. When I got into it with simplebgc and can do some things, but any calibration stuff gives me an error that says "command sent but not confirmed" and down the bottom it says to "check I2c sensor connection" i don't even know what that means. But the gyro calibration does not work, nor do any other calibrations. I did upgrade the firmware. Can anyone point me somewhere where I can educate myself on this. I bought the gimbal used, and I can't get it to operate with the joystick or stop spinning in circles. Camera seems well balanced when its off. I also have no idea what IMU is, I see references to it in the forum, so if its in your answer please explain it to me :)