This document covers the procedure for updating the firmware for an Airmaster controller. Controller firmware should only be updated when directed to by Airmaster.
This instruction is applicable for all AC300 controllers (i.e. all DSD propeller systems), as well as AC200 controllers that are hardware version 5 or higher. For older versions of AC200 hardware, an alternative method must be followed, this is covered separately.
Updating Controller Firmware 
