Hi Y'all, I hope someone is still monitoring this forum. Not much activity lately. Anyway, I hope someone can help me figure out what caused a crash a few days ago, and the subsequent weird behaviour.
Last Saturday I visited my brother, and of course my little nephew wanted to fly my Iris+ He did great! I had the Iris+ in Loiter, and Super Simple Mode. He came in for a nice soft landing. When the craft touched down I told him to move the throttle all the way down for a few seconds. I am fairly sure he did all this correctly, but I was honestly looking at the Iris+ instead of the radio. He held the throttle down, but the thing suddenly pitched over (back flip). I could not see any damage, so I set the copter up again for another flight. As soon as I launched the copter rose up a few feet and did a pitch to the right, crashing hard on its back. This crash broke several propellers and the gimbal mount. I removed the gimbal, and replaced the props for another test. After arming, I slowly added throttle but I could tell that the copter wanted to pitch over again. The past few days I calibrated the accelerometers, and the compass, then decided to try another test flight. Same issue. The copter wants to pitch over backwards. I managed to figure out how to download the logs, and I even had a look in APM Planner, but I really don't know what I'm looking for. Any help would be very much appreciated!