Just got the phantom 3 last week and I have been flying it fine without the update. All of a sudden I get a error message talking about the gimbal bias to large.... and the imu won't calibrate. This happened a few minutes after I messed around with the Poi and Waypoint Feature. So I decided to update the firmware. It doesn't matter which firmware I drag onto the Sd card. It will never go into an update mode. It's almost like it doesn't recognize anything. BTW I am plugging the drone directly into my computer to update rather than using a card reader.... since that didn't seem to work either. Any help or suggestions ?? Thanks !