DJI Phantom 3 IMU Calibration HOW-TO

This is how to perform the DJI Phantom 3 IMU Calibration within the DJI Go App.  Many people were unable to find the "calibrate IMU" option within the DJI GO App but there is where to find it.  I calibrate my DJI Phantom 3's IMU after every firmware update.  From my experience, performing a Phantom