I updated my P3A and batteries to 1.9 and it went smooth as silk. My controller gave me a red triangle and said I had to upgrade the Controller FW. It was still connecting and I had Camera, but it wouldn't power up. It said the FW was already downloaded and ready to install. Now the Controller wont connect to the Drone at all,,won't re-link, and worst of all,,,The controller thinks it's for a P4!! and nothing I do has convinced it otherwise. I tried rolling back the update, it fails. I've tried re-loading the FW and it literally did the blue light/4 rapid Beeps thing for an hour. it Because the controller tells the app it's a P4 the options on the App are for a P4 (anti-collision sensors and such) I asked DJI and if they help I will pass it on but is there anyone who has heard of this before? Can anyone help?