Run QGroundControl V.1.0.1
DO NOT click on CONNECT LINK
Click on the Engineer tab
Click on the select Firmware tab
Navigate to the avq6.6.hex file you should have already downloaded to your PC
click Open
underneath the box now displaying the location of your aqv6.6.hex file
select the com port your AQ6 is connected to
Click on Flash Firmware
wait until firmware update is completed