My phantom 3 beeps cintinuously after attemped update

Make sure the firmware update is in the root directory of the sd card.

Follow the directions here.

http://forum.dji.com/thread-29857-1-1.html

Mine too. Update was successful in logs but just kept beeping.  Let it beep it will eventually finish, i think mine updated the battery and gimbal after it said it was done.

Quote: lokesh.sadasiva Posted at 2015-9-8 04:02 RC not getting updated to version v1.4.0010  Lokesh,    The latest firmware does not update the RC. So the most current RC firmware is 1.3.20.