A copy of report of my friend, another P4 user:
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report from today.
So the new thing is upgraded last version of Dji Go app. The behaviour of the bird is unchanged. I dont know what could they have done with once so well working sensor but now it's worth crap.
-Bird shot up the air to 3'-40 meters (how the **** do i know the alt if the altimeter is wrong by 20m error?), controls idle, it descends VERY RAPIDLY. Actually, maybe in fear my eyes got bigger, but it looked like it was descending even faster than when i command him to descend. Anyway, it showed 30+ meters, still descending, but i was afraid to let it eventually stop by itself and used UP command. And it didnt look 30m to me, it was by my estimation 15m or 20 tops, one cant say with shitty altimeter. I also lowered it hovering to 1.5 m while altimeter showed ******* 20+ meters.
Then i dared to do the take off in sport mode. Fast wroooom up to unknown altitude (id say 40-50m), left the commands idle, and it started to descend fast again. So, essentially the same behaviour as in normal mode.
I did reord a video, but, well, it's ****. Nothing can be seen or heard clearly on it. I even had help, one phone recorded the RC, the other one the bird, but, well, nothing can be seen reliably. I.e. one can see the bird ascending up, disappearing in the skies, and after some time it appears again (because it spontaneously descended by half of it's altitude), but what does it mean to see a blinking spot in the blue sky around? I have a video with RC recorded but my voice was not recorded well, cant be heard. I'll try to do it better next time. In the meantime, we cant do much, you said they didnt care anyway. So, till the next FW update..
However, i have to say that, once i take controls in my hands, it works nice and stabe. No yaw yaw, the altitude is stable, both on sensor reading and my eye estimation. However, having that inaccuracy in mind, i cant let it fly anywhere where i cant see him physically, so not to high and not too far since i have NO IDEA at which real altitude S-1 is! Imagine that. Instrument may show 30m and it can be at 2m. So i always need to see the bird physically which implies limitations of course. Not to repeat again, but as i said i landed with altitude indicating 26m on the instruments.....
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