I tried my first flight with the latest DJIGO app software upgrade. Craft, controller and batteries had all been updated and up to date status reflected in app. ( I may have had Litchi on in the background )on my tablet, but I am not sure of this. I calibrated the compass. I did not have my gimbal/camera installed. IMU "did not need calibration". I had "green" safe to fly in P mode. Prior to take off, the F modes were not displaying when attempted, and I had a message to "take off and retry". I decided to try it, and used auto take off. I took off and the RC had no control of the craft. Neither joystick had any control and the craft just hovered at its 3.9 meters. I toggled back and forth between P and F modes several times with no effect. I was able to lower the landing gear and took hold of the craft. Attempts to lower it to the ground were met with fierce motor resistance trying to maintain its 3.9 meters. The landing gear raised, and I had to move my hand. The craft then drifted right, into a brick wall (gently), and I was able to retrieve it and hold it until it shut down, spinning its broken props. I am afraid to put this thing back up in the air...Advice? Has anyone else had any trouble since this last upgrade? What did I do wrong?