Two week ago I Landed my phantom 3 pro after 3 beautiful and successful flights with perfect landings. Put it in go pro case and back home. Today went out to fly and ESC ERROR (electronic speed controller error) came out of nowhere! Restarted many times with Doing IMU CALIBRATIONS, with no success. All software messages at start is normal & up to date. Anyone with Any other suggestions please? Any input would be thankfully appreciated.