Yuneec pulled the latest FW update from the download area. They would not say why it was pulled, but that it will be corrected and put back up in a week or two. It may be related to all the issues people are having. They just sent me a brand new ST16 and a new this past week due to GPS problems. The new one shows 19 satellites and the Accelerometer and Compass were both calibrated and it still will not lock on one position and continually drifts, it will also randomly climb and or drop several feet. When I tried Smart mode, it will go forward, but it will not go left right or backwards. The earlier birds flew well and were stable, after three tries by Yuneec to get me an H that did not have GPS or Compass issues, I wonder if they received a bad batch of boards. Since they do not test fly them before sending them out, the end users are the test pilots, not remote pilots.