Hi Gregg,
If your 9C's serial number starts with 0206 or any combination of numbers higher than this, your radio does not need to be updated. If it starts with any number below this (such as 0205) then it would need to be sent in.
I hope you find this information helpful. You can also reach our Futaba support technical team at 217-398-8970, or via fax at 217-398-7721.
Sincerely,
Krysta
Lead Futaba Customer Service and Programming Technician
Also you may want to check our Website at (
http://www.futaba-rc.com)