Hi Jimmy B here! I have been reading the issues with Firmware updates and after they update it never work right again. sigh! I in the past I had issues until I learned that when you complete a firmware update You need to reset the IMU. After I learned that I have not had any Issues at all I get the best results is just after you update the Firmware you need to cool down the onboard CPU to reset the IMU due to the fact the internal sensors on the drone are hot if you don't you can get false or conflicting issues and will make the drone act weird or crash or a flyaway. It's like if you get a hard punched in the face and go play with the kids You and I of Corse will need to cool down and shake it off. The Drone is just like that in an electronic sort of way so it needs to cool off then set the IMU I put mine in the freezer after I removed the Batt and Camera but you should not remove the camera on the phantom so the batt is fine. And keep it in for about 5 minutes or so too cool it down and when you set the IMU make sure ti is completely level. I use my IPhone level app to make sure Doing this I get fast start up times and better response Never fails What do you guys think?