Are you talking the aircraft or RC Transmitter ?
I have the tones listed in my tips page
http://forum.dji.com/thread-45630-1-1.html
When Updating has begun on the aircraft you will hear a "Four beat tone" dddd-dddd-dddd-dddd-dddd-dddd-dddd-dddd-dddd-dddd-dddd-dddd-dddd and flashing green and red lights . Just give it some time , updates can take up to an hour , but usually about 20 min.
On the Aircraft .....
-Updates sometimes take a while, wait for the tone to change to a " One beat pause two beat tone" d-dd d-dd d-dd d-dd d-dd d-dd d-dd or the solid green light even better.
-If you hear a long " No pause beat " dddddddddddddddddddddddddddddddddddddddddddddd update has failed. Try again. Remove SD card and Place in computer and look at the File "Result" or the Hidden file to get to the Nitty Gritty. Use search tool magnifying glass and find "Hidden File" tutorial.
donnie
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