After installing the 1.9 I tried to fly and when I turned it on, it said there was an ESC status error and it wouldn't turn the engines on. Asked me to restart the aircraft and if the problem persisted to contact DJI. After rebooting the I1 and rc for five or six time, everything seemed ok. And even rebooted a few more times to make sure the problem wouldn't happen again, and it didn't. Also I calibrated a couple of times just to make sure... Had 17 sats locked. I decided to make a flight with caution in order to assess if everything was good. After a couple of minutes going up and down, back and forth further no issues. As I was stable at around 1.000 feet from me and 200 ft high the I1 went into a deadly spiral and at the DJI Go app a bunch of different red lights started to blink with different messages (where the status is). I couldn't read all of them as I was desperate to try to regaing control, but one of them was something regarding compass error, and sensors error or something like that, among others. My I1 felt in the middle of a small river. I must say I am actually thankful for that, as there was some people near the margins. I don't understand how DJI is such a terrible company and there is not a single time when they update their fw that a lot of people have issues. I just watched 2.000 dollars fall into the ground and I know that there is nothing I can do about it because in addition to their incompetence to deliver reliable software, they have the worst customer relations I've ever experienced. I can't wait for GoPro's Karma drone. Hopefully an American company will do a better job in serving the community.