Mine just shut down and fell out of the sky back in October. Sent it back to Yuneec for repairs and got it back in 2 1/2 weeks. But since then, I've been having other problems, all occurring when fly in the smart mode. 1) When hovering, it will tilt and dart as much a couple feet. 2) it will not hold it's position, drifting about 15 feet over a period of about 15 minutes. )When doing a compass calibration, it will not restart by itself. 4) When landing, the landing gear will not self deploy. 5) When landed, the motors will not shut off automatically. Would all of this be related to a malfunctioning GPS? Angle mode seems to be trouble free.
Smart mode is really not smart and is the lead cause of smashing into things. It's always been tricky with their birds (blade products have Yuneec guts and parts depending on model with similar idiosyncratic behaviors in smart mode) as your geo fence is involved. You will notice everywhere how they stress learning to fly in angle asap and warn how smart mode can cause crashes.
Here is what's not clear from you... what happens in RTH mode? That's the only one that takes over and self lands the drone and handles gear lowering and motor stop. Have you had OBS switch on when in smart mode? If so, every time you move it will also.
BUT.... the biggest red flag is saying it's never restarted post compass calibration as there are only two options here which is successful calibration or failure. If it failed, you'd be getting compass warnings with main light flashing yellow on H and ST throwing out warnings all the time. Flying would be a real ***** and very unsafe for you and your H. A fly away or loss of control is coming the longer you try to fly around the obvious lack of your control inputs working properly.
Smart mode is not going too initiate without GPS lock. GPS lock can't happen properly without compass being calibrated. It automatically switches to angle mode if GPS signal is lost during smart mode. If you don't have the full collision avoidance package (pro), then there is less to consider is going on here. If you do (is there a straight bar under your nose with what looks like little cameras or is there just the two sonar sensors at the nose?) have the full collision and indoor positioning package then remember that it too contributes to what appears the be erratic but is also just the sensors doing there jobs based on new stick inputs relative to you and last position.
Finally, you cannot look at how the H moves and declare a problem based on your perception of "jumpy" behavior. That takes a bit to get used to as quads behave differently to sticks then the H does. It's tricky holding low altitude no matter what with any drone because of backwash and the H with six motors is working its hardest when trying hold steady at anything below 4'. The difference is when I saw jerky movements in past camera platforms I knew my video also probably would have a jello moment. With the H, I can have the whole bird swing around hard in wind and turns etc.. and with proper camera angle and positioning never see any interruption of really smooth video. I purposely record my shadow while in low hovers and jerk sticks all around and then compare video deflection against what the shadow says is happening above that gimbal. I do that post updates and calibrations as a way to ensure my video is stable regardless of what I see the H doing.
Post a video of it failing that restart after compass calibration. This is a new one and if true, you need to contact YUNEEC Monday and don't fly it.
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