So I recalibrate the IMU and brought out the bird for 2 battery flights in a large open (multiple football and baseball field complex) area. What I found is now the thing is now acting strange. When descending (at least 75' out) the bird just stopped maybe 50' high. I had full left stick down and it just hovered there. It would not move down!! After a few up and down motions on the stick, it finally struggled, very slowly, down for a landing. A few more flights up and down and around, and I found it randomly did this a couple of times. It was like it would hang up, then respond again. Directional control seemed fine, though when trying to "force it down," I found that it rotated even though the stick was strait down.
While walking back to my house (5 min), I flew the bird 15-20' in front of me around 5 feet up. It reacted fine, but at one point, it stopped responding to forward command. It just hovered. Again I "rocked it" and then it responded again.
I had 20+ flawless flights on this before the hack incident and crash as described above. Not sure I can trust it anymore. I'm due to shoot a moving boat scene next weekend. Any thoughts??? Is it time to send everything back to get "fixed?" Again, I deleted, and then reloaded DJI GO after the initial incident.